2024/03/28 更新

写真a

ミヤタケ ヒロナオ
宮武 広直
MIYATAKE Hironao
所属
素粒子宇宙起源研究所 基礎理論研究部門 准教授
大学院担当
大学院理学研究科
職名
准教授

学位 3

  1. 博士(理学) ( 2012年3月   東京大学 ) 

  2. 修士 ( 2009年3月   東京大学 ) 

  3. 学士 ( 2007年3月   東京大学 ) 

研究キーワード 4

  1. 銀河団

  2. 銀河

  3. 重力レンズ

  4. 観測的宇宙論

研究分野 1

  1. 自然科学一般 / 素粒子、原子核、宇宙線、宇宙物理にする理論

経歴 9

  1. 名古屋大学   素粒子宇宙起源研究所 基礎理論研究部門   准教授

    2021年4月 - 現在

  2. 名古屋大学   高等研究院   特任助教

    2017年9月 - 2021年3月

  3. California Institute of Technology   Jet Propulsion Laboratory   Caltech Postdoctoral Scholar

    2015年9月 - 2017年8月

  4. Princeton University   Department of Astrophysical Sciences   日本学術振興会特別研究員(PD)

    2014年4月 - 2015年8月

  5. 東京大学   カブリ数物連携宇宙研究機構   日本学術振興会特別研究員(PD)

    2014年4月 - 2015年8月

  6. Princeton University   Department of Astrophysical Sciences   日本学術振興会海外特別研究員

    2012年9月 - 2014年3月

  7. 東京大学   理学系研究科物理学専攻   特任研究員

    2012年4月 - 2012年8月

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    国名:日本国

  8. 東京大学   理学系研究科物理学専攻   特任研究員

    2012年4月 - 2012年8月

  9. 東京大学   理学系研究科物理学専攻   特任研究員

    2012年4月 - 2012年8月

▼全件表示

学歴 4

  1. 東京大学   理学系研究科   物理学専攻

    2009年4月 - 2012年3月

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    国名: 日本国

  2. 東京大学   理学系研究科   物理学専攻

    2007年4月 - 2012年3月

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    国名: 日本国

  3. 東京大学   理学系研究科   物理学専攻

    2007年4月 - 2009年3月

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    国名: 日本国

  4. 東京大学   理学部   物理学科

    2003年4月 - 2007年3月

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    国名: 日本国

所属学協会 3

  1. American Astronomical Society

  2. 日本物理学会

  3. 日本天文学会

受賞 2

  1. 第 25 回日本天文学会欧文研究報告論文賞

    2021年3月  

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    Hikage, et al., "Cosmology from cosmic shear power spectra with Subaru Hyper Suprime Suprime-Cam first-year data," PASJ, 71, 43. doi:10.1093/pasj/psz010
    に対する受賞

  2. Outstanding Postdoc Research Award

    2016年9月   NASAジェット推進研究所  

    宮武広直

 

論文 100

  1. Hyper Suprime-Cam Year 3 results: Cosmology from galaxy clustering and weak lensing with HSC and SDSS using the emulator based halo model

    Miyatake, H; Sugiyama, S; Takada, M; Nishimichi, T; Li, XC; Shirasaki, M; More, S; Kobayashi, Y; Nishizawa, AJ; Rau, MM; Zhang, TQ; Takahashi, R; Dalal, R; Mandelbaum, R; Strauss, MA; Hamana, T; Oguri, M; Osato, K; Luo, WT; Kannawadi, A; Hsieh, BC; Armstrong, R; Bosch, J; Komiyama, Y; Lupton, RH; Lust, NB; Macarthur, LA; Miyazaki, S; Murayama, H; Okura, Y; Price, PA; Sunayama, T; Tait, PJ; Tanaka, M; Wang, SY

    PHYSICAL REVIEW D   108 巻 ( 12 )   2023年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We present cosmology results from a blinded joint analysis of cosmic shear, ζ±, galaxy-galaxy weak lensing, Δς(R), and projected galaxy clustering, wp(R), measured from the Hyper Suprime-Cam three-year (HSC-Y3) shape catalog and the Sloan Digital Sky Survey (SDSS) DR11 spectroscopic galaxy catalog - a 3×2 pt cosmology analysis. We define luminosity-cut, and therefore nearly volume-limited, samples of SDSS galaxies to serve as the tracers of wp and as the lens samples for Δς in three spectroscopic redshift bins spanning the range 0.15<z<0.7. For the ζ± and Δς measurements, we use a single sample of about seven million source galaxies over 416 deg2, selected from HSC-Y3 based on having photometric redshifts (photo-z) greater than 0.75. The deep, high-quality HSC-Y3 data enable significant detections of the Δς signals, with integrated signal-to-noise ratio S/N∼24 in the range 3≤R/[h-1 Mpc]≤30 over the three lens samples. ζ± has S/N∼19 in the range 8′≤ ≤50′ and 30′≤ ≤150′ for ζ+ and ζ-, respectively. For cosmological parameter inference, we use the dark emulator package, combined with a halo occupation distribution prescription for the relation between galaxies and halos, to model wp and Δς down to quasinonlinear scales, and we estimate cosmological parameters after marginalizing over nuisance parameters. In our baseline analysis we employ an uninformative flat prior of the residual photo-z error, given by Π(Δzph)=U(-1,1), to model a residual bias in the mean redshift of HSC source galaxies. Comparing the relative lensing amplitudes for Δς in the three redshift bins and for ζ± with the single HSC source galaxy sample allows us to calibrate the photo-z parameter Δzph to the precision of σ(Δzph)≃0.09. With these methods, we obtain a robust constraint on the cosmological parameters for the flat ΛCDM model: S8=σ8(ωm/0.3)0.5=0.763-0.036+0.040, or the best-constrained parameter given by S8′=σ8(ωm/0.3)0.22=0.721±0.028, determined with about 4% fractional precision. Based on multidimensional tension metrics, HSC-Y3 data exhibits about 2.5σ tension with the cosmological constraint inferred by Planck for the ΛCDM model, and hints at a nonzero residual photo-z bias implying that the true mean redshift of the HSC galaxies at z≳0.75 is higher than that implied by the original photo-z estimates.

    DOI: 10.1103/PhysRevD.108.123517

    Web of Science

    Scopus

  2. Cosmological inference from an emulator based halo model. II. Joint analysis of galaxy-galaxy weak lensing and galaxy clustering from HSC-Y1 and SDSS 査読有り 国際共著

    Miyatake, H; Sugiyama, S; Takada, M; Nishimichi, T; Shirasaki, M; Kobayashi, Y; Mandelbaum, R; More, S; Oguri, M; Osato, K; Park, Y; Takahashi, R; Coupon, J; Hikage, C; Hsieh, BC; Komiyama, Y; Leauthaud, A; Li, XC; Luo, WT; Lupton, RH; Miyazaki, S; Murayama, H; Nishizawa, AJ; Price, PA; Simet, M; Speagle, JS; Strauss, MA; Tanaka, M; Yoshida, N

    PHYSICAL REVIEW D   106 巻 ( 8 )   2022年10月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We present high-fidelity cosmology results from a blinded joint analysis of galaxy-galaxy weak lensing (Δς) and projected galaxy clustering (wp) measured from the Hyper Suprime-Cam Year-1 (HSC-Y1) data and spectroscopic Sloan Digital Sky Survey (SDSS) galaxy catalogs in the redshift range 0.15<z<0.7. We define luminosity-limited samples of SDSS galaxies to serve as the tracers of wp in three spectroscopic redshift bins, and as the lens samples for Δς. For the Δς measurements, we select a single sample of 4×106 source galaxies over 140 deg2 from HSC-Y1 with photometric redshifts (photo z) greater than 0.75, enabling a better handle of photo-z errors by comparing the Δς amplitudes for the three lens redshift bins. The deep, high-quality HSC-Y1 data enable significant detections of the Δς signals, with integrated signal-to-noise ratio S/N∼15 in the range 3≤R/[h-1 Mpc]≤30 for the three lens samples, despite the small area coverage. For cosmological parameter inference, we use an input galaxy-halo connection model built on the dark emulator package (which uses an ensemble set of high-resolution N-body simulations and enables fast, accurate computation of the clustering observables) with a halo occupation distribution that includes nuisance parameters to marginalize over modeling uncertainties. We model the Δς and wp measurements on scales from R≃3 and 2 h-1 Mpc, respectively, up to 30 h-1 Mpc (therefore excluding the baryon acoustic oscillations information) assuming a flat ΛCDM cosmology, marginalizing over about 20 nuisance parameters and demonstrating the robustness of our results to them. With various tests using mock catalogs described in Miyatake et al. [preceding paper, Phys. Rev. D 106, 083519 (2022)10.1103/PhysRevD.106.083519], we show that any bias in the clustering amplitude S8σ8(ωm/0.3)0.5 due to uncertainties in the galaxy-halo connection is less than ∼50% of the statistical uncertainty of S8, unless the assembly biaseffect is unexpectedly large. Our best-fit models have S8=0.795-0.042+0.049 (mode and 68% credible interval) for the flat ΛCDM model; we find tighter constraints on the quantity S8(α=0.17)σ8(ωm/0.3)0.17=0.745-0.031+0.039.

    DOI: 10.1103/PhysRevD.106.083520

    Web of Science

    Scopus

  3. First Identification of a CMB Lensing Signal Produced by 1.5 Million Galaxies at z ∼ 4: Constraints on Matter Density Fluctuations at High Redshift 査読有り 国際共著

    Miyatake, H; Harikane, Y; Ouchi, M; Ono, Y; Yamamoto, N; Nishizawa, AJ; Bahcall, N; Miyazaki, S; Malagón, AAP

    PHYSICAL REVIEW LETTERS   129 巻 ( 6 ) 頁: 061301   2022年8月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review Letters  

    We report the first detection of the dark matter distribution around Lyman break galaxies (LBGs) at high redshift through the cosmic microwave background (CMB) lensing measurements with the public Planck PR3 κ map. The LBG sample consists of 1 473 106 objects with the median redshift of z∼4 that are identified in a total area of 305 deg2 observed by the Hyper Suprime-Cam Strategic Survey Program survey. After careful investigations of systematic uncertainties, such as contamination from foreground galaxies and cosmic infrared background, we obtain the significant detection of the CMB lensing signal at 5.1σ that is dominated by 2-halo term signals of the LBGs. Fitting a simple model consisting of the Navarro-Frenk-White profile and the linear-bias model, we obtain the typical halo mass of Mh=2.9-2.5+9.5×1011 h-1 M. Combining the CMB lensing and galaxy-galaxy clustering signals on the large scales, we demonstrate the first cosmological analysis at z∼4 that constrains (ωm0,σ8). We find that our constraint on σ8 is roughly consistent with the Planck cosmology, while this σ8 constraint is lower than the Planck cosmology over the 1σ level. This study opens up a new window for constraining cosmological parameters at high redshift by the combination of CMB and high-z galaxies, as well as studying the interplay between galaxy evolution and large-scale structure at such high redshift, by upcoming CMB and optical and near-infrared imaging surveys.

    DOI: 10.1103/PhysRevLett.129.061301

    Web of Science

    Scopus

    PubMed

  4. The intrinsic alignment of galaxy clusters and impact of projection effects

    Shi J., Sunayama T., Kurita T., Takada M., Sugiyama S., Mandelbaum R., Miyatake H., More S., Nishimichi T., Johnston H.

    Monthly Notices of the Royal Astronomical Society   528 巻 ( 2 ) 頁: 1487 - 1499   2024年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    Galaxy clusters, being the most massive objects in the Universe, exhibit the strongest alignment with the large-scale structure. However, mis-identification of members due to projection effects from the large-scale structure can occur. We studied the impact of projection effects on the measurement of the intrinsic alignment of galaxy clusters, using galaxy cluster mock catalogues. Our findings showed that projection effects result in a decrease of the large-scale intrinsic alignment signal of the cluster and produce a bump at rp ∼ 1 h-1 Mpc, most likely due to interlopers and missed member galaxies. This decrease in signal explains the observed similar alignment strength between bright central galaxies and clusters in the SDSS redMaPPer cluster catalogue. The projection effect and cluster intrinsic alignment signal are coupled, with clusters having lower fractions of missing members or having higher fraction of interlopers exhibiting higher alignment signals in their projected shapes. We aim to use these findings to determine the impact of projection effects on galaxy cluster cosmology in future studies.

    DOI: 10.1093/mnras/stae064

    Scopus

  5. Hyper Suprime-Cam Year 3 results: Cosmology from cosmic shear power spectra

    Dalal, R; Li, XC; Nicola, A; Zuntz, J; Strauss, MA; Sugiyama, S; Zhang, TQ; Rau, MM; Mandelbaum, R; Takada, M; More, S; Miyatake, H; Kannawadi, A; Shirasaki, M; Taniguchi, T; Takahashi, R; Osato, K; Hamana, T; Oguri, M; Nishizawa, AJ; Malagon, AAP; Sunayama, T; Alonso, D; Slosar, A; Luo, WT; Armstrong, R; Bosch, J; Hsieh, BC; Komiyama, Y; Lupton, RH; Lust, NB; Macarthur, LA; Miyazaki, S; Murayama, H; Nishimichi, T; Okura, Y; Price, PA; Tait, PJ; Tanaka, M; Wang, SY

    PHYSICAL REVIEW D   108 巻 ( 12 )   2023年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We measure weak lensing cosmic shear power spectra from the 3-year galaxy shear catalog of the Hyper Suprime-Cam (HSC) Subaru Strategic Program imaging survey. The shear catalog covers 416 deg2 of the northern sky, with a mean i-band seeing of 0.59 arcsec and an effective galaxy number density of 15 arcmin-2 within our adopted redshift range. With an i-band magnitude limit of 24.5 mag, and four tomographic redshift bins spanning 0.3≤zph≤1.5 based on photometric redshifts, we obtain a high-significance measurement of the cosmic shear power spectra, with a signal-to-noise ratio of approximately 26.4 in the multipole range 300<ℓ<1800. The accuracy of our power spectrum measurement is tested against realistic mock shear catalogs, and we use these catalogs to get a reliable measurement of the covariance of the power spectrum measurements. We use a robust blinding procedure to avoid confirmation bias, and model various uncertainties and sources of bias in our analysis, including point spread function systematics, redshift distribution uncertainties, the intrinsic alignment of galaxies and the modeling of the matter power spectrum. For a flat ΛCDM model, we find S8σ8(ωm/0.3)0.5=0.776-0.033+0.032, which is in excellent agreement with the constraints from the other HSC Year 3 cosmology analyses, as well as those from a number of other cosmic shear experiments. This result implies a ∼2σ-level tension with the Planck 2018 cosmology. We study the effect that various systematic errors and modeling choices could have on this value, and find that they can shift the best-fit value of S8 by no more than ∼0.5σ, indicating that our result is robust to such systematics.

    DOI: 10.1103/PhysRevD.108.123519

    Web of Science

    Scopus

  6. Hyper Suprime-Cam Year 3 results: Measurements of clustering of SDSS-BOSS galaxies, galaxy-galaxy lensing, and cosmic shear

    More, S; Sugiyama, S; Miyatake, H; Rau, MM; Shirasaki, M; Li, XC; Nishizawa, AJ; Osato, K; Zhang, TQ; Takada, M; Hamana, T; Takahashi, R; Dalal, R; Mandelbaum, R; Strauss, MA; Kobayashi, Y; Nishimichi, T; Oguri, M; Luo, WT; Kannawadi, A; Hsieh, BC; Armstrong, R; Bosch, J; Komiyama, Y; Lupton, RH; Lust, NB; MacArthur, LA; Miyazaki, S; Murayama, H; Okura, Y; Price, PA; Tait, PJ; Tanaka, M; Wang, SY

    PHYSICAL REVIEW D   108 巻 ( 12 )   2023年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We utilize the Sloan Digital Sky Survey Baryon Oscillation Spectroscopic Survey (SDSS-BOSS) galaxies and its overlap with approximately 416 sq degrees of deep grizy-band imaging from the Subaru Hyper Suprime-Cam Survey (HSC). We perform measurements of three two-point correlations which form the basis of the cosmological inference presented in our companion papers, Miyatake et al. and Sugiyama et al. We use three approximately volume limited subsamples of spectroscopic galaxies by their i-band magnitude from the SDSS-BOSS: LOWZ (0.1<z<0.35), CMASS1 (0.43<z<0.55) and CMASS2 (0.55<z<0.7), respectively. We present high signal-to-noise ratio measurements of the projected correlation functions of these galaxies, which is expected to be proportional to the projected matter correlation function on large scales with a proportionality constant dependent on the bias of galaxies. In order to help break the degeneracy between the amplitude of the matter correlation and the bias of these spectroscopic galaxies, we use the distortions of the shapes of fainter galaxies in HSC due to weak gravitational lensing, to measure the galaxy-galaxy lensing signal, which probes the projected galaxy-matter cross-correlation function of the SDSS-BOSS galaxies. We also measure the cosmic shear correlation functions from HSC galaxies which is related to the projected matter correlation function. We demonstrate the robustness of our measurements by subjecting each of them to a variety of systematic tests. Our use of a single sample of HSC source galaxies is crucial to calibrate any residual systematic biases in the inferred redshifts of our galaxies. We also describe the construction of a suite of mocks: (i) spectroscopic galaxy catalogs which obey the clustering and abundance of each of the three SDSS-BOSS subsamples, and (ii) galaxy shape catalogs which obey the footprint of the HSC survey and have been appropriately sheared by the large-scale structure expected in a Λ Cold Dark Matter model. We use these mock catalogs to compute the covariance of each of our observables.

    DOI: 10.1103/PhysRevD.108.123520

    Web of Science

    Scopus

  7. Hyper Suprime-Cam Year 3 results: Cosmology from galaxy clustering and weak lensing with HSC and SDSS using the minimal bias model

    Sugiyama, S; Miyatake, H; More, S; Li, XC; Shirasaki, M; Takada, M; Kobayashi, Y; Takahashi, R; Nishimichi, T; Nishizawa, AJ; Rau, MM; Zhang, TQ; Dalal, R; Mandelbaum, R; Strauss, MA; Hamana, T; Oguri, M; Osato, K; Kannawadi, A; Hsieh, BC; Luo, WT; Armstrong, R; Bosch, J; Komiyama, Y; Lupton, RH; Lust, NB; Miyazaki, S; Murayama, H; Okura, Y; Price, PA; Tait, PJ; Tanaka, M; Wang, SY

    PHYSICAL REVIEW D   108 巻 ( 12 )   2023年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We present cosmological parameter constraints from a blind joint analysis of three two-point correlation functions measured from the Year 3 Hyper Suprime-Cam (HSC-Y3) imaging data, covering about 416 deg2, and the SDSS DR11 spectroscopic galaxies spanning the redshift range [0.15, 0.70]. We subdivide the SDSS galaxies into three luminosity-cut, and therefore nearly volume-limited samples separated in redshift, each of which acts as a large-scale structure tracer characterized by the measurement of the projected correlation function, wp(R). We also use the measurements of the galaxy-galaxy weak-lensing signal Δς(R) for each of these SDSS samples which act as lenses for a secure sample of source galaxies selected from the HSC-Y3 shape catalog based on their photometric redshifts. We combine these measurements with the cosmic shear correlation functions, ζ± measured for our HSC source sample. We model these observables with the minimal bias model of the galaxy clustering observables in the context of a flat ΛCDM cosmology. We use conservative scale cuts, R>12 and 8h-1 Mpc for Δς and wp, respectively, where the minimal bias model is valid, in addition to conservative prior on the residual bias in the mean redshift of the HSC photometric source galaxies. We present various validation tests of our model as well as analysis methods. Our baseline analysis yields S8=0.775-0.038+0.043 (68% C.I.) for the ΛCDM model, after marginalizing over uncertainties in other parameters. Our value of S8 is consistent with that from the Planck 2018 data, but the credible interval of our result is still relatively large. We show that various internal consistency tests based on different splits of the data are passed. Our results are statistically consistent with those of a companion paper, which extends this analysis to smaller scales with an emulator-based halo model, using Δς(R) and wp(R) down to R>3 and 2h-1 Mpc, respectively.

    DOI: 10.1103/PhysRevD.108.123521

    Web of Science

    Scopus

  8. Hyper Suprime-Cam Year 3 results: Cosmology from cosmic shear two-point correlation functions

    Li, XC; Zhang, TQ; Sugiyama, S; Dalal, R; Terasawa, R; Rau, MM; Mandelbaum, R; Takada, M; More, S; Strauss, MA; Miyatake, H; Shirasaki, M; Hamana, T; Oguri, M; Luo, WT; Nishizawa, AJ; Takahashi, R; Nicola, A; Osato, K; Kannawadi, A; Sunayama, T; Armstrong, R; Bosch, J; Komiyama, Y; Lupton, RH; Lust, NB; MacArthur, LA; Miyazaki, S; Murayama, H; Nishimichi, T; Okura, Y; Price, PA; Tait, PJ; Tanaka, M; Wang, SY

    PHYSICAL REVIEW D   108 巻 ( 12 )   2023年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We perform a blinded cosmology analysis with cosmic shear two-point correlation functions measured from more than 25 million galaxies in the Hyper Suprime-Cam three-year shear catalog in four tomographic redshift bins ranging from 0.3 to 1.5. After conservative masking and galaxy selection, the survey covers 416 deg2 of the northern sky with an effective galaxy number density of 15 arcmin-2 over the four redshift bins. The 2PCFs adopted for cosmology analysis are measured in the angular range; 7.1<θ/arcmin<56.6 for ζ+ and 31.2<θ/arcmin<248 for ζ-, with a total signal-to-noise ratio of 26.6. We apply a conservative, wide, flat prior on the photometric redshift errors on the last two tomographic bins, and the relative magnitudes of the cosmic shear amplitude across four redshift bins allow us to calibrate the photometric redshift errors. With this flat prior on redshift errors, we find ωm=0.256-0.044+0.056 and S8σ8ωm/0.3=0.769-0.034+0.031 (both 68% C.I.) for a flat Λ cold dark matter cosmology. We find, after unblinding, that our constraint on S8 is consistent with the Fourier space cosmic shear and the 3×2 pt analyses on the same HSC dataset. We carefully study the potential systematics from astrophysical and systematic model uncertainties in our fiducial analysis using synthetic data, and report no biases (including projection bias in the posterior space) greater than 0.5σ in the estimation of S8. Our analysis hints that the mean redshifts of the two highest tomographic bins are higher than initially estimated. In addition, a number of consistency tests are conducted to assess the robustness of our analysis. Comparing our result with Planck-2018 cosmic microwave background observations, we find a ∼2σ tension for the ΛCDM model.

    DOI: 10.1103/PhysRevD.108.123518

    Web of Science

    Scopus

  9. Robustness of baryon acoustic oscillations measurements with photometric redshift uncertainties

    Ishikawa, K; Sunayama, T; Nishizawa, AJ; Miyatake, H; Nishimichi, T

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   526 巻 ( 4 ) 頁: 5374 - 5385   2023年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We investigate the robustness of baryon acoustic oscillations (BAO) measurements with a photometric galaxy sample using mock galaxy catalogues with various sizes of photometric redshift (photo-z) uncertainties. We first conduct the robustness of BAO measurements, assuming we have a perfect knowledge of photo-z uncertainties. We find that the BAO shift parameter α can be constrained in an unbiased manner even for 3 per cent photometric redshift uncertainties up to z ∼ 1. For instance, α = 1.006 ± 0.078 with 95 per cent confidence level is obtained from 3 per cent photo-z uncertainty data at z = 1.03 using the sample of M∗ ≥ 1010.25 M☉ h−2. We also find that a sparse galaxy sample, e.g. <2 × 10−4 [h Mpc−1]3, causes additional noise in the covariance matrix calculation and can bias the constraint on α. Following this, we look into the scenario where incorrect photometric redshift uncertainties are assumed in the fitting model. We find that underestimating the photo-z uncertainty leads to a degradation in the constraining power on α. However, the constrained value of α is not biased. We also quantify the constraining power on Ωm0 assuming the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST)-like covariance and find that the 95 per cent confidence level is σ(Ωm0) ∼ 0.03–0.05 corresponding to the photo-z uncertainties of 1–3 per cent, respectively. Finally, we examine whether the skewness in the photometric redshift can bias the constraint on α and confirm that the constraint on α is unbiased, even assuming a Gaussian photo-z uncertainty in our model.

    DOI: 10.1093/mnras/stad3078

    Web of Science

    Scopus

  10. A general framework for removing point-spread function additive systematics in cosmological weak lensing analysis

    Zhang T., Li X., Dalal R., Mandelbaum R., Strauss M.A., Kannawadi A., Miyatake H., Nicola A., Malagón A.A.P., Shirasaki M., Sugiyama S., Takada M., More S.

    Monthly Notices of the Royal Astronomical Society   525 巻 ( 2 ) 頁: 2441 - 2471   2023年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    Cosmological weak lensing measurements rely on a precise measurement of the shear two-point correlation function (2PCF) along with a deep understanding of systematics that affect it. In this work, we demonstrate a general framework for detecting and modelling the impact of PSF systematics on the cosmic shear 2PCF and mitigating its impact on cosmological analysis. Our framework can detect PSF leakage and modelling error from all spin-2 quantities contributed by the PSF second and higher moments, rather than just the second moments, using the cross-correlations between galaxy shapes and PSF moments. We interpret null tests using the HSC Year 3 (Y3) catalogs with this formalism and find that leakage from the spin-2 combination of PSF fourth moments is the leading contributor to additive shear systematics, with total contamination that is an order-of-magnitude higher than that contributed by PSF second moments alone. We conducted a mock cosmic shear analysis for HSC Y3 and find that, if uncorrected, PSF systematics can bias the cosmological parameters m and S8 by ∼0.3σ. The traditional second moment-based model can only correct for a 0.1σ bias, leaving the contamination largely uncorrected. We conclude it is necessary to model both PSF second and fourth moment contaminations for HSC Y3 cosmic shear analysis. We also reanalyse the HSC Y1 cosmic shear analysis with our updated systematics model and identify a 0.07σ bias on m when using the more restricted second moment model from the original analysis. We demonstrate how to self-consistently use the method in both real space and Fourier space, assess shear systematics in tomographic bins, and test for PSF model overfitting.

    DOI: 10.1093/mnras/stad1801

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  11. Weak lensing tomographic redshift distribution inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue

    Rau, MM; Dalal, R; Zhang, TQ; Li, XC; Nishizawa, AJ; More, S; Mandelbaum, R; Miyatake, H; Strauss, MA; Takada, M

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   524 巻 ( 4 ) 頁: 5109 - 5131   2023年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We present posterior sample redshift distributions for the Hyper Suprime-Cam Subaru Strategic Program Weak Lensing three-year (HSC Y3) analysis. Using the galaxies' photometry and spatial cross-correlations, we conduct a combined Bayesian Hierarchical Inference of the sample redshift distributions. The spatial cross-correlations are derived using a subsample of Luminous Red Galaxies (LRGs) with accurate redshift information available up to a photometric redshift of z < 1.2. We derive the photometry-based constraints using a combination of two empirical techniques calibrated on spectroscopic and multiband photometric data that cover a spatial subset of the shear catalogue. The limited spatial coverage induces a cosmic variance error budget that we include in the inference. Our cross-correlation analysis models the photometric redshift error of the LRGs to correct for systematic biases and statistical uncertainties. We demonstrate consistency between the sample redshift distributions derived using the spatial cross-correlations, the photometry, and the posterior of the combined analysis. Based on this assessment, we recommend conservative priors for sample redshift distributions of tomographic bins used in the three-year cosmological Weak Lensing analyses.

    DOI: 10.1093/mnras/stad1962

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  12. KiDS-1000: Combined halo-model cosmology constraints from galaxy abundance, galaxy clustering, and galaxy-galaxy lensing 査読有り

    Dvornik, A; Heymans, C; Asgari, M; Mahony, C; Joachimi, B; Bilicki, M; Chisari, E; Hildebrandt, H; Hoekstra, H; Johnston, H; Kuijken, K; Mead, A; Miyatake, H; Nishimichi, T; Reischke, R; Unruh, S; Wright, AH

    ASTRONOMY & ASTROPHYSICS   675 巻   頁: A189   2023年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astronomy and Astrophysics  

    We present constraints on the flat cold dark matter cosmological model through a joint analysis of galaxy abundance, galaxy clustering, and galaxy-galaxy lensing observables with the Kilo-Degree Survey. Our theoretical model combines a flexible conditional stellar mass function, which describes the galaxy-halo connection, with a cosmological N-body simulation-calibrated halo model, which describes the non-linear matter field. Our magnitude-limited bright galaxy sample combines nine-band optical-to-near-infrared photometry with an extensive and complete spectroscopic training sample to provide accurate redshift and stellar mass estimates. Our faint galaxy sample provides a background of accurately calibrated lensing measurements. We constrain the structure growth parameter to S8 = Ï 8Ωm/0.3 =0.773-0.030+0.028 and the matter density parameter to Ωm = 0.290-0.017+0.021. The galaxy-halo connection model adopted in the work is shown to be in agreement with previous studies. Our constraints on cosmological parameters are comparable to, and consistent with, joint 3 Å - 2pta'clustering-lensing analyses that additionally include a cosmic shear observable. This analysis therefore brings attention to the significant constraining power in the often excluded non-linear scales for galaxy clustering and galaxy-galaxy lensing observables. By adopting a theoretical model that accounts for non-linear halo bias, halo exclusion, scale-dependent galaxy bias, and the impact of baryon feedback, this work demonstrates the potential for, and a way towards, including non-linear scales in cosmological analyses. Varying the width of the satellite galaxy distribution with an additional parameter yields a strong preference for sub-Poissonian variance, improving the goodness of fit by 0.18 in terms of the reduced τ 2 value (and increasing the p-value by 0.25) compared to a fixed Poisson distribution.

    DOI: 10.1051/0004-6361/202245158

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    arXiv

    その他リンク: http://arxiv.org/pdf/2210.03110v2

  13. Cosmological gravity probes: Connecting recent theoretical developments to forthcoming observations 査読有り

    Arai, S; Aoki, K; Chinone, Y; Kimura, R; Kobayashi, T; Miyatake, H; Yamauchi, D; Yokoyama, S; Akitsu, K; Hiramatsu, T; Hirano, S; Kase, R; Katsuragawa, T; Kobayashi, Y; Namikawa, T; Nishimichi, T; Okumura, T; Shiraishi, M; Shirasaki, M; Sunayama, T; Takahashi, K; Taruya, A; Tokuda, J

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   2023 巻 ( 7 )   2023年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Progress of Theoretical and Experimental Physics  

    Since the discovery of the accelerated expansion of the present universe, significant theoretical developments have been made in the area of modified gravity. In the meantime, cosmological observations have been providing more high-quality data, allowing us to explore gravity on cosmological scales. To bridge the recent theoretical developments and observations, we present an overview of a variety of modified theories of gravity and the cosmological observables in the cosmic microwave background and large-scale structure, supplemented with a summary of predictions for cosmological observables derived from cosmological perturbations and sophisticated numerical studies. We specifically consider scalar-tensor theories in the Horndeski and DHOST family, massive gravity/bigravity, vector-tensor theories, metric-affine gravity, and cuscuton/minimally modified gravity, and discuss the current status of those theories with emphasis on their physical motivations, validity, appealing features, the level of maturity, and calculability. We conclude that the Horndeski theory is one of the most well-developed theories of modified gravity, although several remaining issues are left for future observations. The paper aims to help to develop strategies for testing gravity with ongoing and forthcoming cosmological observations.

    DOI: 10.1093/ptep/ptad052

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  14. Galaxy clustering from the bottom up: a streaming model emulator I

    Cuesta-Lazaro, C; Nishimichi, T; Kobayashi, Y; Ruan, CZ; Eggemeier, A; Miyatake, H; Takada, M; Yoshida, N; Zarrouk, P; Baugh, CM; Bose, S; Li, BJ

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   523 巻 ( 3 ) 頁: 3219 - 3238   2023年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    In this series of papers, we present a simulation-based model for the non-linear clustering of galaxies based on separate modelling of clustering in real space and velocity statistics. In the first paper, we present an emulator for the real-space correlation function of galaxies, whereas the emulator of the real-to-redshift space mapping based on velocity statistics is presented in the second paper. Here, we show that a neural network emulator for real-space galaxy clustering trained on data extracted from the dark quest suite of N-body simulations achieves sub-per cent accuracies on scales 1 < r < 30 h-1 Mpc, and better than 3 per cent on scales r < 1 h-1 Mpc in predicting the clustering of dark-matter haloes with number density 10-3.5 (h-1 Mpc)-3, close to that of SDSS LOWZ-like galaxies. The halo emulator can be combined with a galaxy-halo connection model to predict the galaxy correlation function through the halo model. We demonstrate that we accurately recover the cosmological and galaxy-halo connection parameters when galaxy clustering depends only on the mass of the galaxies' host halos. Furthermore, the constraining power in σ8 increases by about a factor of 2 when including scales smaller than 5h-1 Mpc. However, when mass is not the only property responsible for galaxy clustering, as observed in hydrodynamical or semi-analytic models of galaxy formation, our emulator gives biased constraints on σ8. This bias disappears when small scales (r < 10 h-1 Mpc) are excluded from the analysis. This shows that a vanilla halo model could introduce biases into the analysis of future data sets.

    DOI: 10.1093/mnras/stad1207

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  15. The eROSITA Final Equatorial-Depth Survey (eFEDS) - Splashback radius of X-ray galaxy clusters using galaxies from HSC survey

    Rana, D; More, S; Miyatake, H; Grandis, S; Klein, M; Bulbul, E; Chiu, IN; Miyazaki, S; Bahcall, N

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   522 巻 ( 3 ) 頁: 4181 - 4195   2023年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We present the splashback radius measurements around the SRG/eROSITA eFEDS X-ray selected galaxy clusters by cross-correlating them with HSC S19A photometric galaxies. The X-ray selection is expected to be less affected by systematics related to projection that affects optical cluster finder algorithms. We use a nearly volume-limited sample of 109 galaxy clusters selected in 0.5-2.0 keV band having luminosity LX > 1043.5 erg s−1 h−2 within the redshift z < 0.75 and obtain measurements of the projected cross-correlation with a signal to noise of 17.43. We model our measurements to infer a 3D profile and find that the steepest slope is sharper than −3 and associate the location with the splashback radius. We infer the value of the 3D splashback radius rsp = 1.45+−002630 h−1 Mpc. We also measure the weak-lensing signal of the galaxy clusters and obtain halo mass log[M200m/h−1 M☉] = 14.52 ± 0.06 using the HSC-S16A shape catalogue data at the median redshift z = 0.46 of our cluster sample. We compare our rsp values with the spherical overdensity boundary r200m = 1.75 ± 0.08 h−1 Mpc based on the halo mass, which is consistent within 1.2σ with the ЛCDM predictions. Our constraints on the splashback radius, although broad, are the best measurements thus far obtained for an X-ray selected galaxy cluster sample.

    DOI: 10.1093/mnras/stad1239

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  16. Galaxy clusters at z ∼ 1 imaged by ALMA with the Sunyaev-Zel'dovich effect 査読有り 国際共著

    Kitayama, T; Ueda, S; Okabe, N; Akahori, T; Hilton, M; Hughes, JP; Ichinohe, Y; Kohno, K; Komatsu, E; Lin, YT; Miyatake, H; Oguri, M; Sifón, C; Takakuwa, S; Takizawa, M; Tsutsumi, T; van Marrewijk, J; Wollack, EJ

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   75 巻 ( 2 ) 頁: 311 - 337   2023年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Publications of the Astronomical Society of Japan  

    We present high angular resolution measurements of the thermal Sunyaev–Zel’dovich effect (SZE) toward two galaxy clusters, RCS J2319+0038 at z = 0.9 and HSC J0947−0119 at z = 1.1, by the Atacama Large Millimeter/submillimeter Array (ALMA) in Band 3. They are supplemented with available Chandra X-ray data, optical data taken by Hyper Suprime-Cam on Subaru, and millimeter-wave SZE data from the Atacama Cosmology Telescope. Taking into account departures from spherical symmetry, we have reconstructed non-parametrically the inner pressure profile of two clusters as well as electron temperature and density profiles for RCS J2319+0038. This is one of the first such measurements for an individual cluster at z ≳ 0.9. We find that the inner pressure profile of both clusters is much shallower than that of local cool-core clusters. Our results consistently suggest that RCS J2319+0038 hosts a weak cool core, where radiative cooling is less significant than in local cool cores. On the other hand, HSC J0947−0119 exhibits an even shallower pressure profile than RCS J2319+0038 and is more likely to be a non-cool-core cluster. The SZE centroid position is offset by more than 140 h−170 kpc from the peaks of galaxy distribution in HSC J0947−0119, suggesting a stronger influence of mergers in this cluster. We conclude that these distant clusters are at a very early stage of developing the cool cores typically found in clusters at lower redshifts.

    DOI: 10.1093/pasj/psac110

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  17. A unified catalogue-level reanalysis of stage-III cosmic shear surveys 査読有り

    Longley, EP; Chang, C; Walter, CW; Zuntz, J; Ishak, M; Mandelbaum, R; Miyatake, H; Nicola, A; Pedersen, EM; Pereira, MES; Prat, J; Sánchez, J; Secco, LF; Tröster, T; Troxel, M; Wright, AH

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   520 巻 ( 4 ) 頁: 5016 - 5041   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    Cosmological parameter constraints from recent galaxy imaging surveys are reaching percent-level accuracy on the effective amplitude of the lensing signal, S8. The upcoming Legacy Survey of Space and Time (LSST) of the Vera C. Rubin Observatory will produce subpercent level measurements of cosmological parameters, providing a milestone test of the CDM model. To supply guidance to the upcoming LSST analysis, it is important to understand thoroughly the results from different recent galaxy imaging surveys and assess their consistencies. In this work, we perform a unified catalogue-level reanalysis of three cosmic shear data sets: the first year data from the Dark Energy Survey (DES-Y1), the 1000 deg2 data set from the Kilo-Degree Survey (KiDS-1000), and the first year data from the Hyper Suprime-Cam Subaru Strategic Program (HSC-Y1). We utilize a pipeline developed and rigorously tested by the LSST Dark Energy Science Collaboration to perform the reanalysis and assess the robustness of the results to analysis choices. We find the S8 constraint to be robust to two different small-scale modelling approaches, and varying choices of cosmological priors. Our unified analysis allows the consistency of the surveys to be rigorously tested, and we find the three surveys to be statistically consistent. Due to the partially overlapping footprint, we model the cross-covariance between KiDS-1000 and HSC-Y1 approximately when combining all three data sets, resulting in a 1.6–1.9 per cent constraint on S8 given different assumptions on the cross-covariance.

    DOI: 10.1093/mnras/stad246

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  18. Cluster cosmology with anisotropic boosts: validation of a novel forward modelling analysis and application on SDSS redMaPPer clusters 査読有り 国際共著

    Park, Y; Sunayama, T; Takada, M; Kobayashi, Y; Miyatake, H; More, S; Nishimichi, T; Sugiyama, S

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   518 巻 ( 4 ) 頁: 5171 - 5189   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We present a novel analysis for cluster cosmology that fully forward models the abundances, weak lensing, and the clustering of galaxy clusters. Our analysis notably includes an empirical model for the anisotropic boosts impacting the lensing and clustering signals of optical clusters. These boosts arise from a preferential selection of clusters surrounded by anisotropic large-scale structure, a consequence of the limited discrimination between line-of-sight interlopers and true cluster members offered by photometric surveys. We validate our analysis via a blind cosmology challenge on mocks, and find that we can obtain tight and unbiased cosmological constraints without informative priors or external calibrations on any of our model parameters. We then apply our analysis on the SDSS redMaPPer clusters, and find results favoring low cm and high σ8, combining to yield the lensing strength constraint S8 = 0.715-0.021+0.024. We investigate potential drivers behind these results through a series of post-unblinding tests, noting that our results are consistent with existing cluster cosmology constraints but clearly inconsistent with other CMB/LSS based cosmology results. From these tests, we find hints that a suppression in the cluster lensing signal may be driving our results.

    DOI: 10.1093/mnras/stac3410

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  19. The eROSITA Final Equatorial-Depth Survey (eFEDS) X-ray properties of Subaru's optically selected clusters 査読有り 国際共著

    Ota, N; Nguyen-Dang, NT; Mitsuishi, I; Oguri, M; Klein, M; Okabe, N; Ramos-Ceja, ME; Reiprich, TH; Pacaud, F; Bulbul, E; Brüggen, M; Liu, A; Migkas, K; Chiu, I; Ghirardini, V; Grandis, S; Lin, YT; Miyatake, H; Miyazaki, S; Sanders, JS

    ASTRONOMY & ASTROPHYSICS   669 巻   頁: A110 - A110   2023年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astronomy and Astrophysics  

    Context. We present the results of a systematic X-ray analysis of optically rich galaxy clusters detected by the Subaru Hyper Suprime-Cam (HSC) survey in the eROSITA Final Equatorial-Depth Survey (eFEDS) field. Aims. Through a joint analysis of the SRG (Spectrum Roentgen Gamma)/eROSITA and Subaru/HSC surveys, we aim to investigate the dynamical status of the optically selected clusters and to derive the cluster scaling relations. Methods. The sample consists of 43 optically selected galaxy clusters with a richness >40 in the redshift range of 0.16-0.89. We systematically analyzed the X-ray images and emission spectra using the eROSITA data.We identified the brightest cluster galaxy (BCG) using the optical and farinfrared databases.We evaluated the cluster's dynamical status by measuring three quantities: offset between the X-ray peak and BCG position, the gas concentration parameter, and the number of galaxy-density peaks. We investigated the luminosity-temperature and mass-luminosity relations based on eROSITA X-ray spectra and HSC weak-lensing data analyses. Results. Based on these three measurements, we estimated the fraction of relaxed clusters to be 2(< 39)%, which is smaller than that of the X-ray-selected cluster samples. After correcting for a selection bias due to the richness cut, we obtained a shallow L-T slope of 2.1 ± 0.5, which is consistent with the predictions of the self-similar model and the baseline model incorporating a mass-concentration relation. The L-M slope of 1.5 ± 0.3 is in agreement with the above-cited theoretical models as well as the data on the shear-selected clusters in the eFEDs field. Conclusions. Our analysis of high-richness optical clusters yields a small fraction of relaxed clusters and a shallow slope for the luminosity- temperature relation. This suggests that the average X-ray properties of the optical clusters are likely to be different from those observed in the X-ray samples. Thus, the joint eROSITA and HSC observations are a powerful tool in extending the analysis to a larger sample and understanding the selection effect with a view to establish cluster scaling relations.

    DOI: 10.1051/0004-6361/202244260

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  20. Consistent lensing and clustering in a low-<i>S</i><sub>8</sub> Universe with BOSS, DES Year 3, HSC Year 1, and KiDS-1000 査読有り 国際共著

    Amon, A; Robertson, NC; Miyatake, H; Heymans, C; White, M; DeRose, J; Yuan, S; Wechsler, RH; Varga, TN; Bocquet, S; Dvornik, A; More, S; Ross, AJ; Hoekstra, H; Alarcon, A; Asgari, M; Blazek, J; Campos, A; Chen, R; Choi, A; Crocce, M; Diehl, HT; Doux, C; Eckert, K; Elvin-Poole, J; Everett, S; Ferté, A; Gatti, M; Giannini, G; Gruen, D; Gruendl, RA; Hartley, WG; Herner, K; Hildebrandt, H; Huang, S; Huff, EM; Joachimi, B; Lee, S; MacCrann, N; Myles, J; Navarro-Alsina, A; Nishimichi, T; Prat, J; Secco, LF; Sevilla-Noarbe, I; Sheldon, E; Shin, T; Tröster, T; Troxel, MA; Tutusaus, I; Wright, AH; Yin, B; Aguena, M; Allam, S; Annis, J; Bacon, D; Bilicki, M; Brooks, D; Burke, DL; Rosell, AC; Carretero, J; Castander, FJ; Cawthon, R; Costanzi, M; da Costa, LN; Pereira, MES; de Jong, J; De Vicente, J; Desai, S; Dietrich, JP; Doel, P; Ferrero, I; Frieman, J; García-Bellido, J; Gerdes, DW; Gschwend, J; Gutierrez, G; Hinton, SR; Hollowood, DL; Honscheid, K; Huterer, D; Kannawadi, A; Kuehn, K; Kuropatkin, N; Lahav, O; Lima, M; Maia, MAG; Marshall, JL; Menanteau, F; Miquel, R; Mohr, JJ; Morgan, R; Muir, J; Paz-Chinchón, F; Pieres, A; Malagón, AAP; Porredon, A; Rodriguez-Monroy, M; Roodman, A; Sanchez, E; Serrano, S; Shan, H; Suchyta, E; Swanson, MEC; Tarle, G; Thomas, D; To, C; Zhang, Y

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   518 巻 ( 1 ) 頁: 477 - 503   2023年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We evaluate the consistency between lensing and clustering based on measurements from Baryon Oscillation Spectroscopic Survey combined with galaxy-galaxy lensing from Dark Energy Survey (DES) Year 3, Hyper Suprime-Cam Subaru Strategic Program (HSC) Year 1, and Kilo-Degree Survey (KiDS)-1000. We find good agreement between these lensing data sets. We model the observations using the Dark Emulator and fit the data at two fixed cosmologies: Planck (S8 = 0.83), and a Lensing cosmology (S8 = 0.76). For a joint analysis limited to large scales, we find that both cosmologies provide an acceptable fit to the data. Full utilization of the higher signal-to-noise small-scale measurements is hindered by uncertainty in the impact of baryon feedback and assembly bias, which we account for with a reasoned theoretical error budget. We incorporate a systematic inconsistency parameter for each redshift bin, A, that decouples the lensing and clustering. With a wide range of scales, we find different results for the consistency between the two cosmologies. Limiting the analysis to the bins for which the impact of the lens sample selection is expected to be minimal, for the Lensing cosmology, the measurements are consistent with A = 1; A = 0.91 ± 0.04 (A = 0.97 ± 0.06) using DES+KiDS (HSC). For the Planck case, we find a discrepancy: A = 0.79 ± 0.03 (A = 0.84 ± 0.05) using DES+KiDS (HSC). We demonstrate that a kinematic Sunyaev-Zeldovich-based estimate for baryonic effects alleviates some of the discrepancy in the Planck cosmology. This analysis demonstrates the statistical power of small-scale measurements; however, caution is still warranted given modelling uncertainties and foreground sample selection effects.

    DOI: 10.1093/mnras/stac2938

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  21. Cosmological inference from an emulator based halo model. I. Validation tests with HSC and SDSS mock catalogs 査読有り 国際共著

    Miyatake, H; Kobayashi, Y; Takada, M; Nishimichi, T; Shirasaki, M; Sugiyama, S; Takahashi, R; Osato, K; More, S; Park, Y

    PHYSICAL REVIEW D   106 巻 ( 8 )   2022年10月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We present validation tests of emulator-based halo model method for cosmological parameter inference, assuming hypothetical measurements of the projected correlation function of galaxies, wp(R), and the galaxy-galaxy weak lensing, Δς(R), from the spectroscopic SDSS galaxies and the Hyper Suprime-Cam Year 1 (HSC-Y1) galaxies. To do this, we use dark emulator developed in Nishimichi et al. based on an ensemble of N-body simulations, which is an emulation package enabling a fast, accurate computation of halo clustering quantities (halo mass function, halo autocorrelation and halo-matter cross-correlation) for flat-geometry cold dark matter cosmologies. Adopting the halo occupation distribution, the emulator allows us to obtain model predictions of Δς and wp for the SDSS-like galaxies at a few CPU seconds for an input set of parameters. We present performance and validation of the method by carrying out Markov chain Monte Carlo analyses of the mock signals measured from a variety of mock catalogs that mimic the SDSS and HSC-Y1 galaxies. We show that the halo model method can recover the underlying true cosmological parameters to within the 68% credible interval, except for the mocks including the assembly bias effect (although we consider the unrealistically large amplitude of assembly bias effect). Even for the assembly bias mock, we demonstrate that the cosmological parameters can be recovered if the analysis is restricted to scales R≳10 h-1 Mpc (i.e., if the information on the average mass of halos hosting SDSS galaxies inherent in the 1-halo term of Δς is not included). We also show that, by using a single population of source galaxies to infer the relative strengths of Δς for multiple lens samples at different redshifts, the joint probes method allows for self-calibration of photometric redshift errors and multiplicative shear bias. Thus we conclude that the emulator-based halo model method can be safely applied to the HSC-Y1 dataset, achieving a precision of σ(S8)≃0.04 after marginalization over nuisance parameters such as the galaxy-halo connection parameters and the photo-z error parameter, and our method is complementary to methods based on perturbation theory.

    DOI: 10.1103/PhysRevD.106.083519

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  22. A pair of early- and late-forming galaxy cluster samples: A novel way of studying halo assembly bias assisted by a constrained simulation 査読有り 国際共著

    Lin, YT; Miyatake, H; Guo, H; Chiang, YK; Chen, KF; Lan, TW; Chang, YY

    ASTRONOMY & ASTROPHYSICS   666 巻   2022年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astronomy and Astrophysics  

    The halo assembly bias, a phenomenon referring to dependencies of the large-scale bias of a dark matter halo other than its mass, is a fundamental property of the standard cosmological model. First discovered in 2005 from the Millennium Run simulation, it has been proven very diffcult to be detected observationally, with only a few convincing claims of detection so far. The main obstacle lies in finding an accurate proxy of the halo formation time. In this study, by utilizing a constrained simulation that can faithfully reproduce the observed structures larger than 2 Mpc in the local universe, for a sample of 634 massive clusters at z ≤ 0.12, we found their counterpart halos in the simulation and used the mass growth history of the matched halos to estimate the formation time of the observed clusters. This allowed us to construct a pair of early- and late-forming clusters, with a similar mass as measured via weak gravitational lensing, and large-scale biases differing at the ≈3σ level, suggestive of the signature of assembly bias, which is further corroborated by the properties of cluster galaxies, including the brightest cluster galaxy and the spatial distribution and number of member galaxies. Our study paves a way to further detect assembly bias based on cluster samples constructed purely on observed quantities.

    DOI: 10.1051/0004-6361/202244404

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  23. Towards 1% accurate galaxy cluster masses: including baryons in weak-lensing mass inference 査読有り 国際共著

    Cromer, D; Battaglia, N; Miyatake, H; Simet, M

    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS   2022 巻 ( 10 )   2022年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Cosmology and Astroparticle Physics  

    Galaxy clusters are a promising probe of late-time structure growth, but constraints on cosmology from cluster abundances are currently limited by systematics in their inferred masses. One unmitigated systematic effect in weak-lensing mass inference is ignoring the presence of baryons and treating the entire cluster as a dark matter halo. In this work we present a new flexible model for cluster densities that captures both the baryonic and dark matter profiles, a new general technique for calculating the lensing signal of an arbitrary density profile, and a methodology for stacking those lensing signal to appropriately model stacked weak-lensing measurements of galaxy cluster catalogues. We test this model on 1400 simulated clusters. Similarly to previous studies, we find that a dark matter-only model overestimates the average mass by 7.5%, but including our baryonic term reduces that to 0.7%. Since two more variables are marginalized over when we include our baryonic term the posteriors on the cluster mass calibration are larger than the dark matter-only model. Additionally, to mitigate the computational complexity of our model, we construct an emulator (surrogate model) which accurately interpolates our model for parameter inference, while being much faster to use than the raw model. We also provide an open-source software framework for our model and emulator, called maszcal, which will serve as a platform for continued efforts to improve these mass-calibration techniques. In this work, we detail our model, the construction of the emulator, and the tests which we used to validate that our model does mitigate bias. Lastly, we describe tests of the emulator's accuracy.

    DOI: 10.1088/1475-7516/2022/10/034

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  24. The halo model with beyond-linear halo bias: unbiasing cosmological constraints from galaxy-galaxy lensing and clustering 査読有り 国際共著

    Mahony, C; Dvornik, A; Mead, A; Heymans, C; Asgari, M; Hildebrandt, H; Miyatake, H; Nishimichi, T; Reischke, R

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   515 巻 ( 2 ) 頁: 2612 - 2623   2022年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We determine the error introduced in a joint halo model analysis of galaxy-galaxy lensing and galaxy clustering observables when adopting the standard approximation of linear halo bias. Considering the Kilo-Degree Survey, we forecast that ignoring the non-linear halo bias would result in up to 5σ offsets in the recovered cosmological parameters describing structure growth, S8, and the matter density parameter, m. We include the scales 10-1.3< rp/h-1Mpc< 10 in the data vector, and the direction of these offsets are shown to depend on the freedom afforded to the halo model through other nuisance parameters. We conclude that a beyond-linear halo bias correction must therefore be included in future cosmological halo model analyses of large-scale structure observables on non-linear scales.

    DOI: 10.1093/mnras/stac1858

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  25. LoVoCCS. I. Survey Introduction, Data Processing Pipeline, and Early Science Results 査読有り 国際共著

    Fu, SM; Dell'Antonio, I; Chary, RR; Clowe, D; Cooper, MC; Donahue, M; Evrard, A; Lacy, M; Lauer, T; Liu, BY; McCleary, J; Meneghetti, M; Miyatake, H; Montes, M; Natarajan, P; Ntampaka, M; Pierpaoli, E; Postman, M; Sohn, J; Umetsu, K; Utsumi, Y; Wilson, G

    ASTROPHYSICAL JOURNAL   933 巻 ( 1 )   2022年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astrophysical Journal  

    We present the Local Volume Complete Cluster Survey (LoVoCCS; we pronounce it as "low-vox"or "law-vox,"with stress on the second syllable), an NSF's National Optical-Infrared Astronomy Research Laboratory survey program that uses the Dark Energy Camera to map the dark matter distribution and galaxy population in 107 nearby (0.03 < z < 0.12) X-ray luminous ([0.1-2.4 keV] L X500 > 1044 erg s-1) galaxy clusters that are not obscured by the Milky Way. The survey will reach Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) Year 1-2 depth (for galaxies r = 24.5, i = 24.0, signal-to-noise ratio (S/N) > 20; u = 24.7, g = 25.3, z = 23.8, S/N > 10) and conclude in 1/42023 (coincident with the beginning of LSST science operations), and will serve as a zeroth-year template for LSST transient studies. We process the data using the LSST Science Pipelines that include state-of-the-art algorithms and analyze the results using our own pipelines, and therefore the catalogs and analysis tools will be compatible with the LSST. We demonstrate the use and performance of our pipeline using three X-ray luminous and observation-time complete LoVoCCS clusters: A3911, A3921, and A85. A3911 and A3921 have not been well studied previously by weak lensing, and we obtain similar lensing analysis results for A85 to previous studies. (We mainly use A3911 to show our pipeline and give more examples in the Appendix.)

    DOI: 10.3847/1538-4357/ac68e8

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  26. HSC Year 1 cosmology results with the minimal bias method: HSC x BOSS galaxy-galaxy weak lensing and BOSS galaxy clustering 査読有り 国際共著

    Sugiyama, S; Takada, M; Miyatake, H; Nishimichi, T; Shirasaki, M; Kobayashi, Y; Mandelbaum, R; More, S; Takahashi, R; Osato, K; Oguri, M; Coupon, J; Hikage, C; Hsieh, BC; Komiyama, Y; Leauthaud, A; Li, XC; Luo, WT; Lupton, RH; Murayama, H; Nishizawa, AJ; Park, Y; Price, PA; Simet, M; Speagle, JS; Strauss, MA; Tanaka, M

    PHYSICAL REVIEW D   105 巻 ( 12 )   2022年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We present cosmological parameter constraints from a blinded joint analysis of galaxy-galaxy weak lensing, Δς(R), and the projected correlation function, wp(R), measured from the first-year HSC (HSC-Y1) data and SDSS spectroscopic galaxies over 0.15<z<0.7. We use luminosity-limited samples as lens samples for Δς and as large-scale structure tracers for wp in three redshift bins, and use the HSC-Y1 galaxy catalog to define a secure sample of source galaxies at zph>0.75 for the Δς measurements, selected based on their photometric redshifts. As a theoretical template, we use the "minimal bias"model for the cosmological clustering observables for the flat ΛCDM cosmological model. We compare the model predictions with the measurements in each redshift bin on large scales, R>12 and 8h-1 Mpc for Δς(R) and wp(R), respectively, where the perturbation-theory-inspired model is valid. As part of our model, we account for the effect of lensing magnification bias on the Δς measurements. When we employ weak priors on cosmological parameters, without cosmic microwave background (CMB) information, we find S8=0.936-0.086+0.092, σ8=0.85-0.11+0.16, and ωm=0.283-0.035+0.12 (mode and 68% credible interval) for the flat ΛCDM model. Although the central value of S8 appears to be larger than those inferred from other cosmological experiments, we find that the difference is consistent with expected differences due to sample variance, and our results are consistent with the other results to within the statistical uncertainties. When combined with the Planck 2018 likelihood for the primary CMB anisotropy information (TT,TE,EE+lowE), we find S8=0.817-0.021+0.022, σ8=0.892-0.056+0.051, ωm=0.246-0.035+0.045, and the equation-of-state parameter of dark energy, wde=-1.28-0.19+0.20 for the flat wCDM model, which is consistent with the flat ΛCDM model to within the error bars.

    DOI: 10.1103/PhysRevD.105.123537

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  27. The eROSITA Final Equatorial-Depth Survey (eFEDS) X-ray observable-to-mass-and-redshift relations of galaxy clusters and groups with weak-lensing mass calibration from the Hyper Suprime-Cam Subaru Strategic Program survey 査読有り 国際共著

    Chiu, IN; Ghirardini, V; Liu, A; Grandis, S; Bulbul, E; Bahar, YE; Comparat, J; Bocquet, S; Clerc, N; Klein, M; Liu, T; Li, XC; Miyatake, H; Mohr, J; More, S; Oguri, M; Okabe, N; Pacaud, F; Ramos-Ceja, ME; Reiprich, TH; Schrabback, T; Umetsu, K

    ASTRONOMY & ASTROPHYSICS   661 巻   2022年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astronomy and Astrophysics  

    We present the first weak-lensing mass calibration and X-ray scaling relations of galaxy clusters and groups selected in the eROSITA Final Equatorial Depth Survey (eFEDS) observed by Spectrum Roentgen Gamma/eROSITA over a contiguous footprint with an area of 140 deg2, using the three-year (S19A) weak-lensing data from the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. In this work, we study a sample of 434 optically confirmed galaxy clusters (and groups) at redshift 0.01 1.3 with a median of 0.35, of which 313 systems are uniformly covered by the HSC survey to enable the extraction of the weak-lensing shear observable. In a Bayesian population modeling, we perform a blind analysis for the weak-lensing mass calibration by simultaneously modeling the observed count rate η and the shear profile g+ of individual clusters through the count-rate-to-mass-and-redshift (η-M500-z) relation and the weak-lensing-mass-to-mass-and-redshift (MWL-M500-z) relation, respectively, while accounting for the bias in these observables using simulation-based calibrations. As a result, the count-rate-inferred and lensing-calibrated cluster mass is obtained from the joint modeling of the scaling relations, as the ensemble mass spanning a range of 1013h-1M M500 with a median of for the eFEDS sample. With the mass calibration, we further model the X-ray observable-to-mass-and-redshift relations, including the rest-frame soft-band and bolometric luminosity (LX and Lb), the emission-weighted temperature TX, the mass of intra-cluster medium Mg, and the mass proxy YX, which is the product of TX and Mg. Except for LX with a steeper dependence on the cluster mass at a statistically significant level, we find that the other X-ray scaling relations all show a mass trend that is statistically consistent with the self-similar prediction at a level of Meanwhile, all these scaling relations show no significant deviation from the self-similarity in their redshift scaling. Moreover, no significant redshift-dependent mass trend is present. This work demonstrates the synergy between the eROSITA and HSC surveys in preparation for the forthcoming first-year eROSITA cluster cosmology.

    DOI: 10.1051/0004-6361/202141755

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  28. The eROSITA Final Equatorial-Depth Survey (eFEDS) A complete census of X-ray properties of Subaru Hyper Suprime-Cam weak lensing shear-selected clusters in the eFEDS footprint 査読有り 国際共著

    Ramos-Ceja, ME; Oguri, M; Miyazaki, S; Ghirardini, V; Chiu, I; Okabe, N; Liu, A; Schrabback, T; Akino, D; Bahar, YE; Bulbul, E; Clerc, N; Comparat, J; Grandis, S; Klein, M; Lin, YT; Merloni, A; Mitsuishi, I; Miyatake, H; More, S; Nandra, K; Nishizawa, AJ; Ota, N; Pacaud, F; Reiprich, TH; Sanders, JS

    ASTRONOMY & ASTROPHYSICS   661 巻   2022年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astronomy and Astrophysics  

    Context. The eFEDS survey is a proof-of-concept mini-survey designed to demonstrate the survey science capabilities of SRG/eROSITA. It covers an area of 140 deg2 where ~540 galaxy clusters have been detected out to a redshift of 1.3. The eFEDS field is partly embedded in the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) S19A data release, which covers ~510 deg2, containing approximately 36 million galaxies. This galaxy catalogue has been used to construct a sample of ~180 shear-selected galaxy clusters. The common area to both surveys covers about 90 deg2, making it an ideal region to study galaxy clusters selected in different ways. Aims. The aim of this work is to investigate the effects of selection methods in the galaxy cluster detection by comparing the X-ray selected, eFEDS, and the shear-selected, HSC-SSP S19A, galaxy cluster samples. There are 25 shear-selected clusters in the eFEDS fooprint. Methods. The relation between X-ray bolometric luminosity and weak-lensing mass is investigated (Lbol - M relation), comparing this relation derived from a shear-selected cluster sample to the relation obtained from an X-ray selected sample. Moreover, the dynamical state of the shear-selected clusters is investigated and compared to the X-ray selected sample using X-ray morphological parameters and galaxy distribution. Results. The normalisation of the Lbol â ? ? M relation of the X-ray selected and shear-selected samples is consistent within 1Ï ? -. Moreover, the dynamical state and merger fraction of the shear-selected clusters is not different from the X-ray selected ones. Four shear-selected clusters are undetected in X-rays. A close inspection reveals that one is the result of projection effects, while the other three have an X-ray flux below the ultimate eROSITA detection limit. Finally, 43% of the shear-selected clusters lie in superclusters. Conclusions. Our results indicate that the scaling relation between X-ray bolometric luminosity and true cluster mass of the shear-selected cluster sample is consistent with the eFEDS sample. There is no significant population of X-ray underluminous clusters, indicating that X-ray selected cluster samples are complete and can be used as an accurate cosmological probe.

    DOI: 10.1051/0004-6361/202142214

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  29. The eROSITA Final Equatorial-Depth Survey (eFEDS) Optical confirmation, redshifts, and properties of the cluster and group catalog 査読有り 国際共著

    Klein, M; Oguri, M; Mohr, JJ; Grandis, S; Ghirardini, V; Liu, T; Liu, A; Bulbul, E; Wolf, J; Comparat, J; Ramos-Ceja, ME; Buchner, J; Chiu, I; Clerc, N; Merloni, A; Miyatake, H; Miyazaki, S; Okabe, N; Ota, N; Pacaud, F; Salvato, M; Driver, SP

    ASTRONOMY & ASTROPHYSICS   661 巻   2022年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astronomy and Astrophysics  

    Context. In 2019, the eROSITA telescope on board the Russian-German satellite Spectrum-Roentgen-Gamma (SRG) began to perform a deep all-sky X-ray survey with the aim of identifying ~100 000 clusters and groups over the course of four years. As part of its performance verification phase, a ~140 deg2 survey, called eROSITA Final Equatorial-Depth Survey (eFEDS), was performed. With a depth typical of the all-sky survey after four years, it allows tests of tools and methods as well as improved predictions for the all-sky survey. Aims. As part of this effort, a catalog of 542 X-ray selected galaxy group and cluster candidates was compiled. In this paper we present the optical follow-up, with the aim of providing redshifts and cluster confirmation for the full sample. Furthermore, we aim to provide additional information on the dynamical state, richness, and optical center of the clusters. Finally, we aim to evaluate the impact of optical cluster confirmation on the purity and completeness of the X-ray selected sample. Methods. We used optical imaging data from the Hyper Suprime-Cam Subaru Strategic Program and from the Legacy Survey to identify optical counterparts to the X-ray detected cluster candidates. We make use of the multi-component matched filter cluster confirmation tool (MCMF), as well as of the optical cluster finder CAMIRA to derive cluster redshifts and richnesses. MCMF provided the probabilities with which an optical structure would be a chance superposition with the X-ray candidate. These probabilities were used to identify the best optical counterpart as well as to confirm an X-ray candidate as a cluster. The impact of this confirmation process on catalog purity and completeness was estimated using optical to X-ray scaling relations as well as simulations. The resulting catalog was furthermore matched with public group and cluster catalogs. Optical estimators of the cluster dynamical state were constructed based on density maps of the red-sequence galaxies at the cluster redshift. Results. By providing redshift estimates for all 542 candidates, we construct an optically confirmed sample of 477 clusters and groups with a residual contamination of 6%. Of these, 470 (98.5%) are confirmed using MCMF, and 7 systems are added through cross-matching with spectroscopic group catalogs. Using observable-to-observable scaling and the applied confirmation threshold, we predict that 8 ± 2 real systems have been excluded with the MCMF cut required to build this low-contamination sample. This number agrees well with the 7 systems found through cross-matching that were not confirmed with MCMF. The predicted redshift and mass distribution of this catalog agree well with simulations. Thus, we expect that these 477 systems include >99% of all true clusters in the candidate list. Using an MCMF-independent method, we confirm that the catalog contamination of the confirmed subsample is 6 ± 3%. Application of the same method to the full candidate list yields 17 ± 3%, consistent with estimates coming from the fraction of confirmed systems of ~17% and with expectations from simulations of ~20%. We also present a sample of merging cluster candidates based on the derived estimators of the cluster dynamical state.

    DOI: 10.1051/0004-6361/202141123

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  30. Full-shape cosmology analysis of the SDSS-III BOSS galaxy power spectrum using an emulator-based halo model: A 5% determination of sigma(8) 査読有り

    Kobayashi Yosuke, Nishimichi Takahiro, Takada Masahiro, Miyatake Hironao

    PHYSICAL REVIEW D   105 巻 ( 8 )   2022年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We present the results obtained from the full-shape cosmology analysis of the redshift-space power spectra for four galaxy samples of the SDSS-III BOSS DR12 galaxy catalog over 0.2<z<0.75. For the theoretical template, we use an emulator that was built from an ensemble set of N-body simulations, which enables fast and accurate computation of the redshift-space power spectrum of "halos."Combining with the halo occupation distribution to model the galaxy-halo connection, we can compute the redshift-space power spectrum of BOSS-like galaxies in less than a CPU second, for an input model under flat ΛCDM cosmology. In our cosmology inference, we use the monopole, quadrupole, and hexadecapole moments of the redshift-space power spectrum and include seven nuisance parameters, with broad priors, to model uncertainties in the galaxy-halo connection for each galaxy sample, but do not use any information on the abundance of galaxies. We demonstrate a validation of our analysis pipeline using the mock catalogs of BOSS-like galaxies, generated using different recipes of the galaxy-halo connection and including the assembly bias effect. Assuming weak priors on cosmological parameters, except for the BBN prior on ωbh2 and the CMB prior on ns, we show that our model well reproduces the BOSS power spectra. Including the power-spectrum information up to kmax=0.25h Mpc-1, we find ωm=0.301-0.011+0.012, H0=68.2±1.4 km s-1 Mpc-1, and σ8=0.786-0.037+0.036 for the mode and 68% credible interval, after marginalization over galaxy-halo connection parameters. We find little improvement in the cosmological parameters beyond a maximum wavelength kmax≃0.2h Mpc-1 due to the shot noise domination and marginalization of the galaxy-halo connection parameters. Our results are consistent with the Planck CMB results within 1σ statistical uncertainties.

    DOI: 10.1103/PhysRevD.105.083517

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  31. Cosmological constraints from cosmic shear two-point correlation functions with HSC survey first-year data (vol 72, psz138, 2020) 査読有り 国際共著

    Hamana, T; Shirasaki, M; Miyazaki, S; Hikage, C; Oguri, M; More, S; Armstrong, R; Leauthaud, A; Mandelbaum, R; Miyatake, H; Nishizawa, AJ; Simet, M; Takada, M; Aihara, H; Bosch, J; Komiyama, Y; Lupton, R; Murayama, H; Strauss, MA; Tanaka, M

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   74 巻 ( 2 ) 頁: 488 - 491   2022年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Publications of the Astronomical Society of Japan  

    In the original publication of "Cosmological constraints from cosmic shear two-point correlation functions with HSC survey first-year data"[PASJ, 72, 16 (2020); doi: 10.1093/pasj/psz138], we discovered a couple of bugs in the software used for numerical computations. Here we present revised results obtained from corrected computations.

    DOI: 10.1093/pasj/psab117

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  32. Third data release of the Hyper Suprime-Cam Subaru Strategic Program 査読有り 国際共著

    Aihara, H; AlSayyad, Y; Ando, M; Armstrong, R; Bosch, J; Egami, E; Furusawa, H; Furusawa, J; Harasawa, S; Harikane, Y; Hsieh, BC; Ikeda, H; Ito, K; Iwata, I; Kodama, T; Koike, M; Kokubo, M; Komiyama, Y; Li, XC; Liang, YM; Lin, YT; Lupton, RH; Lust, NB; MacArthur, LA; Mawatari, K; Mineo, S; Miyatake, H; Miyazaki, S; More, S; Morishima, T; Murayama, H; Nakajima, K; Nakata, F; Nishizawa, AJ; Oguri, M; Okabe, N; Okura, Y; Ono, Y; Osato, K; Ouchi, M; Pan, YC; Malagón, AAP; Price, PA; Reed, SL; Rykoff, ES; Shibuya, T; Simunovic, M; Strauss, MA; Sugimori, K; Suto, Y; Suzuki, N; Takada, M; Takagi, Y; Takata, T; Takita, S; Tanaka, M; Tang, SL; Taranu, DS; Terai, T; Toba, Y; Turner, EL; Uchiyama, H; Vijarnwannaluk, B; Waters, CZ; Yamada, Y; Yamamoto, N; Yamashita, T

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   74 巻 ( 2 ) 頁: 247 - 272   2022年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Publications of the Astronomical Society of Japan  

    This paper presents the third data release of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP), a wide-field multi-band imaging survey with the Subaru 8.2 m telescope. HSC-SSP has three survey layers (Wide, Deep, and UltraDeep) with different area coverages and depths, designed to address a wide array of astrophysical questions. This third release from HSC-SSP includes data from 278 nights of observing time and covers about 670 deg2 in all five broad-band filters (grizy) at the full depth (∼26 mag at 5σ depending on filter) in the Wide layer. If we include partially observed areas, the release covers 1470 deg2. The Deep and UltraDeep layers have ∼ 80% of the originally planned integration times, and are considered done, as we have slightly changed the observing strategy in order to compensate for various time losses. There are a number of updates in the image processing pipeline. Of particular importance is the change in the sky subtraction algorithm; we subtract the sky on small scales before the detection and measurement stages, which has significantly reduced the number of false detections. Thanks to this and other updates, the overall quality of the processed data has improved since the previous release. However, there are limitations in the data (for example, the pipeline is not optimized for crowded fields), and we encourage the user to check the quality assurance plots as well as a list of known issues before exploiting the data.

    DOI: 10.1093/pasj/psab122

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  33. The three-year shear catalog of the Subaru Hyper Suprime-Cam SSP Survey 査読有り 国際共著

    Li, XC; Miyatake, H; Luo, WT; More, S; Oguri, M; Hamana, T; Mandelbaum, R; Shirasaki, M; Takada, M; Armstrong, R; Kannawadi, A; Takita, S; Miyazaki, S; Nishizawa, AJ; Malagon, AAP; Strauss, MA; Tanaka, M; Yoshida, N

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   74 巻 ( 2 ) 頁: 421 - 459   2022年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Publications of the Astronomical Society of Japan  

    We present the galaxy shear catalog that will be used for the three-year cosmological weak gravitational lensing analyses using data from the Wide layer of the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) Survey. The galaxy shapes are measured from the i-band imaging data acquired from 2014 to 2019 and calibrated with image simulations that resemble the observing conditions of the survey based on training galaxy images from the Hubble Space Telescope in the COSMOS region. The catalog covers an area of 433.48 deg2 of the northern sky, split into six fields. The mean i-band seeing is 0″. 59. With conservative galaxy selection criteria (e.g., i-band magnitude brighter than 24.5), the observed raw galaxy number density is 22.9 arcmin-2, and the effective galaxy number density is 19.9 arcmin-2. The calibration removes the galaxy property-dependent shear estimation bias to the level |δm| < 9 × 10-3. The bias residual δm shows no dependence on redshift in the range 0 < z ≤ 3. We define the requirements for cosmological weak-lensing science for this shear catalog, and quantify potential systematics in the catalog using a series of internal null tests for systematics related to point-spread function modelling and shear estimation. A variety of the null tests are statistically consistent with zero or within requirements, but (i) there is evidence for PSF model shape residual correlations; and (ii) star-galaxy shape correlations reveal additive systematics. Both effects become significant on >1° scales and will require mitigation during the inference of cosmological parameters using cosmic shear measurements.

    DOI: 10.1093/pasj/psac006

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  34. Joint Survey Processing. I. Compact Oddballs in the COSMOS Field-Low-luminosity Quasars at <i>z</i> > 6? 査読有り 国際共著

    Faisst, AL; Chary, RR; Fajardo-Acosta, S; Paladini, R; Rusholme, B; Stickley, N; Helou, G; Weaver, JR; Brammer, G; Koekemoer, AM; Miyatake, H

    ASTROPHYSICAL JOURNAL   929 巻 ( 1 )   2022年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astrophysical Journal  

    The faint-end slope of the quasar luminosity function at z ∼6 and its implication on the role of quasars in reionizing the intergalactic medium at early times has been an outstanding problem for some time. The identification of faint high-redshift quasars with luminosities of <1044.5 erg s-1 is challenging. They are rare (few per square degree), and the separation of these unresolved quasars from late-Type stars and compact star-forming galaxies is difficult from ground-based observations alone. In addition, source confusion becomes significant at >25 mag, with ∼1/430% of sources having their flux contaminated by foreground objects when the seeing resolution is ∼1/40″.7. We mitigate these issues by performing a pixel-level joint processing of ground and space-based data from Subaru/Hyper-SuprimeCam (HSC) and Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS). We create a deconfused catalog over the 1.64 deg2 of the COSMOS field, after accounting for spatial varying point-spread functions and astrometric differences between the two data sets. We identify twelve low-luminosity (M UV ∼-21 mag) z > 6 quasar candidates through (i) their red color measured between ACS/F814W and HSC/i band and (ii) their compactness in the space-based data. Nondetections of our candidates in Hubble DASH data argues against contamination from late-Type stars. Our constraints on the faint end of the quasar luminosity function at z ∼6.4 suggest a negligibly small contribution to reionization compared to the star-forming galaxy population. The confirmation of our candidates and the evolution of number density with redshift could provide better insights into how supermassive galaxies grew in the first billion years of cosmic time.

    DOI: 10.3847/1538-4357/ac59b3

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  35. Lensing without borders - I. A blind comparison of the amplitude of galaxy-galaxy lensing between independent imaging surveys 査読有り 国際共著

    Leauthaud, A; Amon, A; Singh, S; Gruen, D; Lange, JU; Huang, S; Robertson, NC; Varga, TN; Luo, Y; Heymans, C; Hildebrandt, H; Blake, C; Aguena, M; Allam, S; Andrade-Oliveira, F; Annis, J; Bertin, E; Bhargava, S; Blazek, J; Bridle, SL; Brooks, D; Burke, DL; Rosell, AC; Kind, MC; Carretero, J; Castander, FJ; Cawthon, R; Choi, A; Costanzi, M; da Costa, LN; Pereira, MES; Davis, C; De Vicente, J; DeRose, J; Diehl, HT; Dietrich, JP; Doel, P; Eckert, K; Everett, S; Evrard, AE; Ferrero, I; Flaugher, B; Fosalba, P; García-Bellido, J; Gatti, M; Gaztanaga, E; Gruendl, RA; Gschwend, J; Hartley, WG; Hollowood, DL; Honscheid, K; Jain, B; James, DJ; Jarvis, M; Joachimi, B; Kannawadi, A; Kim, AG; Krause, E; Kuehn, K; Kuijken, K; Kuropatkin, N; Lima, M; MacCrann, N; Maia, MAG; Makler, M; March, M; Marshall, JL; Melchior, P; Menanteau, F; Miquel, R; Miyatake, H; Mohr, JJ; Moraes, B; More, S; Surhud, M; Morgan, R; Myles, J; Ogando, RLC; Palmese, A; Paz-Chinchón, F; Malagón, AAP; Prat, J; Rau, MM; Rhodes, J; Rodriguez-Monroy, M; Roodman, A; Ross, AJ; Samuroff, S; Sánchez, C; Sanchez, E; Scarpine, V; Schlegel, DJ; Schubnell, M; Serrano, S; Sevilla-Noarbe, I; Sifón, C; Smith, M; Speagle, JS; Suchyta, E; Tarle, G; Thomas, D; Tinker, J; To, C; Troxel, MA; Van Waerbeke, L; Vielzeuf, P; Wright, AH

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   510 巻 ( 4 ) 頁: 6150 - 6189   2022年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    Lensing without borders is a cross-survey collaboration created to assess the consistency of galaxy-galaxy lensing signals (Δς) across different data sets and to carry out end-to-end tests of systematic errors. We perform a blind comparison of the amplitude of Δς using lens samples from BOSS and six independent lensing surveys. We find good agreement between empirically estimated and reported systematic errors which agree to better than 2.3σ in four lens bins and three radial ranges. For lenses with zL > 0.43 and considering statistical errors, we detect a 3-4σ correlation between lensing amplitude and survey depth. This correlation could arise from the increasing impact at higher redshift of unrecognized galaxy blends on shear calibration and imperfections in photometric redshift calibration. At zL > 0.54, amplitudes may additionally correlate with foreground stellar density. The amplitude of these trends is within survey-defined systematic error budgets that are designed to include known shear and redshift calibration uncertainty. Using a fully empirical and conservative method, we do not find evidence for large unknown systematics. Systematic errors greater than 15 per cent (25 per cent) ruled out in three lens bins at 68 per cent (95 per cent) confidence at z < 0.54. Differences with respect to predictions based on clustering are observed to be at the 20-30 per cent level. Our results therefore suggest that lensing systematics alone are unlikely to fully explain the 'lensing is low' effect at z < 0.54. This analysis demonstrates the power of cross-survey comparisons and provides a promising path for identifying and reducing systematics in future lensing analyses.

    DOI: 10.1093/mnras/stab3586

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  36. The Subaru HSC weak lensing mass-observable scaling relations of spectroscopic galaxy groups from the GAMA survey 査読有り 国際共著

    Rana, D; More, S; Miyatake, H; Nishimichi, T; Takada, M; Robotham, ASG; Hopkins, AM; Holwerda, BW

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   510 巻 ( 4 ) 頁: 5408 - 5425   2022年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We utilize the galaxy shape catalogue from the first-year data release of the Subaru Hyper Suprime-Cam (HSC) surv e y to study the dark matter content of galaxy groups in the Universe using weak lensing. We use galaxy groups from the Galaxy Mass and Assembly galaxy surv e y in approximately 100 sq. de grees of the sk y that o v erlap with the HSC surv e y as lenses. We restrict our analysis to the 1587 groups with at least five members. We divide these groups into six bins each of group luminosity and group member velocity dispersion and measure the lensing signal with a signal-to-noise ratio of 55 and 51 for these two different selections, respectively. We use a Bayesian halo model framework to infer the halo mass distribution of our groups binned in the two different observable properties and constrain the power-law scaling relation and the scatter between mean halo masses and the two-group observable properties. We obtain a 5 per cent constraint on the amplitude of the scaling relation between halo mass and group luminosity with (M) = (0.81 ±0.04) ×10 14 h −1 M ⊙for L grp = 10 11.5 h −2 L ⊙, and a power-law index of α= 1.01 ±0.07. We constrain the amplitude of the scaling relation between halo mass and velocity dispersion to be (M) = (0.93 ±0.05) ×10 14 h −1 M ⊙for σ= 500 km s −1 and a power-law index to be α= 1.52 ±0.10. Ho we ver, these scaling relations are sensitive to the exact cuts applied to the number of group members. Comparisons with similar scaling relations from the literature show that our results are consistent and have significantly reduced errors.

    DOI: 10.1093/mnras/stac007

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  37. CLMM: a LSST-DESC cluster weak lensing mass modeling library for cosmology 査読有り 国際共著

    Aguena, M; Avestruz, C; Combet, C; Fu, S; Herbonnet, R; Malz, AI; Penna-Lima, M; Ricci, M; Vitenti, SDP; Baumont, L; Fan, H; Fong, M; Ho, M; Kirby, M; Payerne, C; Boutigny, D; Lee, B; Liu, B; McClintock, T; Miyatake, H; Sifón, C; von der Linden, A; Wu, H; Yoon, M

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   508 巻 ( 4 ) 頁: 6092 - 6110   2021年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We present the v1.0 release of CLMM, an open source python library for the estimation of the weak lensing masses of clusters of galaxies. CLMM is designed as a stand-alone toolkit of building blocks to enable end-to-end analysis pipeline validation for upcoming cluster cosmology analyses such as the ones that will be performed by the Vera C. Rubin Legacy Survey of Space and Time-Dark Energy Science Collaboration (LSST-DESC). Its purpose is to serve as a flexible, easy-to-install, and easy-to-use interface for both weak lensing simulators and observers and can be applied to real and mock data to study the systematics affecting weak lensing mass reconstruction. At the core of CLMM are routines to model the weak lensing shear signal given the underlying mass distribution of galaxy clusters and a set of data operations to prepare the corresponding data vectors. The theoretical predictions rely on existing software, used as backends in the code, that have been thoroughly tested and cross-checked. Combined theoretical predictions and data can be used to constrain the mass distribution of galaxy clusters as demonstrated in a suite of example Jupyter Notebooks shipped with the software and also available in the extensive online documentation.

    DOI: 10.1093/mnras/stab2764

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  38. Cosmology with the <i>Roman Space Telescope</i> - multiprobe strategies 査読有り 国際共著

    Eifler, T; Miyatake, H; Krause, E; Heinrich, C; Miranda, V; Hirata, C; Xu, JC; Hemmati, S; Simet, M; Capak, P; Choi, A; Doré, O; Doux, C; Fang, X; Hounsell, R; Huff, E; Huang, HJ; Jarvis, M; Kruk, J; Masters, D; Rozo, E; Scolnic, D; Spergel, DN; Troxel, M; von der Linden, A; Wang, Y; Weinberg, DH; Wenzl, L; Wu, HY

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   507 巻 ( 2 ) 頁: 1746 - 1761   2021年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We simulate the scientific performance of the Nancy Grace Roman Space Telescope High Latitude Survey (HLS) on dark energy and modified gravity. The 1.6-yr HLS Reference survey is currently envisioned to image 2000 deg2 in multiple bands to a depth of ∼26.5 in Y, J, H and to cover the same area with slit-less spectroscopy beyond z = 3. The combination of deep, multiband photometry and deep spectroscopy will allow scientists to measure the growth and geometry of the Universe through a variety of cosmological probes (e.g. weak lensing, galaxy clusters, galaxy clustering, BAO, Type Ia supernova) and, equally, it will allow an exquisite control of observational and astrophysical systematic effects. In this paper, we explore multiprobe strategies that can be implemented, given the telescope's instrument capabilities. We model cosmological probes individually and jointly and account for correlated systematics and statistical uncertainties due to the higher order moments of the density field. We explore different levels of observational systematics for the HLS survey (photo-z and shear calibration) and ultimately run a joint likelihood analysis in N-dim parameter space. We find that the HLS reference survey alone can achieve a standard dark energy FoM of >300 when including all probes. This assumes no information from external data sets, we assume a flat universe however, and includes realistic assumptions for systematics. Our study of the HLS reference survey should be seen as part of a future community-driven effort to simulate and optimize the science return of the Roman Space Telescope.

    DOI: 10.1093/mnras/stab1762

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  39. Cosmology with the <i>Roman Space Telescope</i>: synergies with the Rubin Observatory Legacy Survey of Space and Time 査読有り 国際共著

    Eifler, T; Simet, M; Krause, E; Hirata, C; Huang, HJ; Fang, X; Miranda, V; Mandelbaum, R; Doux, C; Heinrich, C; Huff, E; Miyatake, H; Hemmati, S; Xu, JC; Rogozenski, P; Capak, P; Choi, A; Doré, O; Jain, B; Jarvis, M; Kruk, J; MacCrann, N; Masters, D; Rozo, E; Spergel, DN; Troxel, M; von der Linden, A; Wang, Y; Weinberg, DH; Wenzl, L; Wu, HY

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   507 巻 ( 1 ) 頁: 1514 - 1527   2021年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We explore synergies between the Nancy Grace Roman Space Telescope and the Vera Rubin Observatory's Legacy Survey of Space and Time (LSST). Specifically, we consider scenarios where the currently envisioned survey strategy for the Roman Space Telescope's High Latitude Survey (HLS reference), i.e. 2000 deg2 in four narrow photometric bands is altered in favour of a strategy of rapid coverage of the LSST area (to full LSST depth) in one band. We find that in only five months, a survey in the W-band can cover the full LSST survey area providing high-resolution imaging for >95 per cent of the LSST Year 10 gold galaxy sample. We explore a second, more ambitious scenario where the Roman Space Telescope spends 1.5 yr covering the LSST area. For this second scenario, we quantify the constraining power on dark energy equation-of-state parameters from a joint weak lensing and galaxy clustering analysis. Our survey simulations are based on the Roman Space Telescope exposure-time calculator and redshift distributions from the CANDELS catalogue. Our statistical uncertainties account for higher order correlations of the density field, and we include a wide range of systematic effects, such as uncertainties in shape and redshift measurements, and modelling uncertainties of astrophysical systematics, such as galaxy bias, intrinsic galaxy alignment, and baryonic physics. We find a significant increase in constraining power for the joint LSST + HLS wide survey compared to LSST Y10 (FoMHLSwide = 2.4 FoMLSST) and compared to LSST + HLS (FoMHLSwide = 5.5 FoMHLSref).

    DOI: 10.1093/mnras/stab533

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  40. The Stellar Mass in and around Isolated Central Galaxies: Connections to the Total Mass Distribution through Galaxy-Galaxy Lensing in the Hyper Suprime-Cam Survey 査読有り 国際共著

    Wang, WT; Li, XC; Shi, JJ; Han, JX; Yasuda, N; Jing, YP; More, S; Takada, M; Miyatake, H; Nishizawa, AJ

    ASTROPHYSICAL JOURNAL   919 巻 ( 1 )   2021年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astrophysical Journal  

    Using photometrically selected galaxies from the Hyper Suprime-Cam (HSC) survey, we measure the stellar-mass density profiles for satellite galaxies around isolated central galaxies (ICGs) from SDSS/DR7 at z ~ 0.1. By stacking HSC images, we also measure the projected stellar-mass density profiles for ICGs and their stellar halos. The total mass distributions are further measured from HSC weak-lensing signals. ICGs dominate within ~0.15 times the halo virial radius (0.15 R200). The stellar mass versus total mass fractions drop with the increase in projected distance up to ~0.15 R200, beyond which they are less than 1% while staying almost constant. The integrated stellar mass in satellites is proportional to the virial mass of the host halo, M200, for ICGs more massive than 1010.5Me, i.e., M*,sat ?M200, whereas the relation between the stellar mass of ICGs + stellar halos and M200 is close to M ,ICG+diffuse µ M200 1 2*. Below 1010.5Me, the change in M200 is much slower with the decrease in M*,ICG+diffuse. At fixed stellar mass, red ICGs are hosted by more massive dark matter halos and have more satellites. At M200 ~ 1012.7Me, both M*,sat and the fraction of stellar mass in satellites versus total stellar mass, fsat, tend to be marginally higher around blue ICGs. fsat increases with the increase in both M*,ICG+diffuse and M200, and scales more linearly with M200. We provide best-fitting relations to M200 versus M*,ICG+diffuse, M*,sat or M*,ICG+diffuse +M*,sat, and to fsat versus M200 or M*,ICG+diffuse, for red and blue ICGs separately.

    DOI: 10.3847/1538-4357/ac0e38

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  41. Hundreds of weak lensing shear-selected clusters from the Hyper Suprime-Cam Subaru Strategic Program S19A data 査読有り 国際共著

    Oguri, M; Miyazaki, S; Li, XC; Luo, WT; Mitsuishi, I; Miyatake, H; More, S; Nishizawa, AJ; Okabe, N; Ota, N; Plazas Malagón, AA; Utsumi, Y

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   73 巻 ( 4 ) 頁: 817 - 829   2021年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Publications of the Astronomical Society of Japan  

    We use the Hyper Suprime-Cam Subaru Strategic Program S19A shape catalog to construct weak lensing shear-selected cluster samples. From aperture mass maps covering ∼510 deg2 created using a truncated Gaussian filter, we construct a catalog of 187 shear-selected clusters that correspond to mass map peaks with signal-to-noise ratio larger than 4.7. Most of the shear-selected clusters have counterparts in optically selected clusters, from which we estimate the purity of the catalog to be higher than 95%. The sample can be expanded to 418 shear-selected clusters with the same signal-to-noise ratio cut by optimizing the shape of the filter function and by combining weak lensing mass maps created with several different background galaxy selections. We argue that dilution and obscuration effects of cluster member galaxies can be mitigated by using background source galaxy samples and adopting a filter function with its inner boundary larger than about 2'. The large samples of shear-selected clusters that are selected without relying on any baryonic tracer are useful for detailed studies of cluster astrophysics and cosmology.

    DOI: 10.1093/pasj/psab047

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  42. The Atacama Cosmology Telescope: A Catalog of >4000 Sunyaev-Zel'dovich Galaxy Clusters 査読有り

    Hilton, M; Sifón, C; Naess, S; Madhavacheril, M; Oguri, M; Rozo, E; Rykoff, E; Abbott, TMC; Adhikari, S; Aguena, M; Aiola, S; Allam, S; Amodeo, S; Amon, A; Annis, J; Ansarinejad, B; Aros-Bunster, C; Austermann, JE; Avila, S; Bacon, D; Battaglia, N; Beall, JA; Becker, DT; Bernstein, GM; Bertin, E; Bhandarkar, T; Bhargava, S; Bond, JR; Brooks, D; Burke, DL; Calabrese, E; Kind, MC; Carretero, J; Choi, SK; Choi, A; Conselice, C; da Costa, LN; Costanzi, M; Crichton, D; Crowley, KT; Dünner, R; Denison, EV; Devlin, MJ; Dicker, SR; Diehl, HT; Dietrich, JP; Doel, P; Duff, SM; Duivenvoorden, AJ; Dunkley, J; Everett, S; Ferraro, S; Ferrero, I; Ferté, A; Flaugher, B; Frieman, J; Gallardo, PA; García-Bellido, J; Gaztanaga, E; Gerdes, DW; Giles, P; Golec, JE; Gralla, MB; Grandis, S; Gruen, D; Gruendl, RA; Gschwend, J; Gutierrez, G; Han, D; Hartley, WG; Hasselfield, M; Hill, JC; Hilton, GC; Hincks, AD; Hinton, SR; Ho, SPP; Honscheid, K; Hoyle, B; Hubmayr, J; Huffenberger, KM; Hughes, JP; Jaelani, AT; Jain, B; James, DJ; Jeltema, T; Kent, S; Knowles, K; Koopman, BJ; Kuehn, K; Lahav, O; Lima, M; Lin, YT; Lokken, M; Loubser, SI; MacCrann, N; Maia, MAG; Marriage, TA; Martin, J; McMahon, J; Melchior, P; Menanteau, F; Miquel, R; Miyatake, H; Moodley, K; Morgan, R; Mroczkowski, T; Nati, F; Newburgh, LB; Niemack, MD; Nishizawa, AJ; Ogando, RLC; Orlowski-Scherer, J; Page, LA; Palmese, A; Partridge, B; Paz-Chinchón, F; Phakathi, P; Plazas, AA; Robertson, NC; Romer, AK; Rosell, AC; Salatino, M; Sanchez, E; Schaan, E; Schillaci, A; Sehgal, N; Serrano, S; Shin, T; Simon, SM; Smith, M; Soares-Santos, M; Spergel, DN; Staggs, ST; Storer, ER; Suchyta, E; Swanson, MEC; Tarle, G; Thomas, D; To, C; Trac, H; Ullom, JN; Vale, LR; Van Lanen, J; Vavagiakis, EM; De Vicente, J; Wilkinson, RD; Wollack, EJ; Xu, Z; Zhang, Y

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   253 巻 ( 1 )   2021年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astrophysical Journal, Supplement Series  

    We present a catalog of 4195 optically confirmed Sunyaev–Zel’dovich (SZ) selected galaxy clusters detected with signal-to-noise ratio >4 in 13,211 deg2 of sky surveyed by the Atacama Cosmology Telescope (ACT). Cluster candidates were selected by applying a multifrequency matched filter to 98 and 150 GHz maps constructed from ACT observations obtained from 2008 to 2018 and confirmed using deep, wide-area optical surveys. The clusters span the redshift range 0.04 < z < 1.91 (median z = 0.52). The catalog contains 222 z > 1 clusters, and a total of 868 systems are new discoveries. Assuming an SZ signal versus mass-scaling relation calibrated from X-ray observations, the sample has a 90% completeness mass limit of M500c > 3.8 × 1014 Me, evaluated at z = 0.5, for clusters detected at signal-to-noise ratio >5 in maps filtered at an angular scale of 2 4. The survey has a large overlap with deep optical weak-lensing surveys that are being used to calibrate the SZ signal mass-scaling relation, such as the Dark Energy Survey (4566 deg2), the Hyper Suprime-Cam Subaru Strategic Program (469 deg2), and the Kilo Degree Survey (825 deg2). We highlight some noteworthy objects in the sample, including potentially projected systems, clusters with strong lensing features, clusters with active central galaxies or star formation, and systems of multiple clusters that may be physically associated. The cluster catalog will be a useful resource for future cosmological analyses and studying the evolution of the intracluster medium and galaxies in massive clusters over the past 10 Gyr.

    DOI: 10.3847/1538-4365/abd023

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  43. A comparative study of satellite galaxies in Milky Way-like galaxies from HSC, DECaLS, and SDSS 査読有り

    Wang, WT; Takada, M; Li, XC; Carlsten, SG; Lan, TW; Shi, JJ; Miyatake, H; More, S; Beaton, RL; Lupton, R; Lin, YT; Qiu, T; Luo, WT

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   500 巻 ( 3 ) 頁: 3776 - 3801   2021年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We conduct a comprehensive and statistical study of the luminosity functions (LFs) for satellite galaxies, by counting photometric galaxies from HSC, DECaLS, and SDSS around isolated central galaxies (ICGs) and paired galaxies from the SDSS/DR7 spectroscopic sample. Results of different surveys show very good agreement. The satellite LFs can be measured down to MV ∼ -10, and for central primary galaxies as small as 8.5 < log10M /M⊙ < 9.2 and 9.2 < log10M /M⊙ < 9.9, which implies there are on average 3-8 satellites with MV < -10 around LMC-mass ICGs. The bright end cutoff of satellite LFs and the satellite abundance are both sensitive to the magnitude gap between the primary and its companions, indicating galaxy systems with larger magnitude gaps are on average hosted by less massive dark matter haloes. By selecting primaries with stellar mass similar to our Milky Way (MW), we discovered that (i) the averaged satellite LFs of ICGs with different magnitude gaps to their companions and of galaxy pairs with different colour or colour combinations all show steeper slopes than the MWsatellite LF; (ii) there are on average more satellites with -15 < MV < -10 than those in our MW; (iii) there are on average 1.5 to 2.5 satellites with MV < -16 around ICGs, consistent with our MW; (iv) even after accounting for the large scatter predicted by numerical simulations, the MW satellite LF is uncommon at MV > -12. Hence, the MWand its satellite system are statistically atypical of our sample of MW-mass systems. In consequence, our MW is not a good representative of other MW-mass galaxies. Strong cosmological implications based on only MW satellites await additional discoveries of fainter satellites in extra-galactic systems. Interestingly, the MW satellite LF is typical among other MW-mass systems within 40 Mpc in the local Universe, perhaps implying the Local Volume is an underdense region.

    DOI: 10.1093/mnras/staa3495

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  44. FPFS Shear Estimator: Systematic Tests on the Hyper Suprime-Cam Survey First-year Data 査読有り

    Li, XC; Oguri, M; Katayama, N; Luo, WT; Wang, WT; Han, JX; Miyatake, H; Nakamura, K; More, S

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   251 巻 ( 2 )   2020年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astrophysical Journal, Supplement Series  

    We apply the Fourier Power Function Shapelets (FPFS) shear estimator to the first-year data of the Hyper Suprime-Cam survey to construct a shape catalog. The FPFS shear estimator has been demonstrated to have a multiplicative bias less than 1% in the absence of blending, regardless of complexities of galaxy shapes, smears of point spread functions (PSFs), and contamination from noise. The blending bias is calibrated with realistic image simulations, which include the impact of neighboring objects, using the COSMOS Hubble Space Telescope images. Here we carefully test the influence of PSF model residual on the FPFS shear estimation and the uncertainties in the shear calibration. Internal null tests are conducted to characterize potential systematics in the FPFS shape catalog, and the results are compared with those measured using a catalog where the shapes were estimated using the re-Gaussianization algorithms. Furthermore, we compare various weak-lensing measurements between the FPFS shape catalog and the re-Gaussianization shape catalog and conclude that the weak-lensing measurements between these two shape catalogs are consistent with each other within the statistical uncertainty.

    DOI: 10.3847/1538-4365/abbad1

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  45. Validating a minimal galaxy bias method for cosmological parameter inference using HSC-SDSS mock catalogs 査読有り

    Sugiyama, S; Takada, M; Kobayashi, Y; Miyatake, H; Shirasaki, M; Nishimichi, T; Park, Y

    PHYSICAL REVIEW D   102 巻 ( 8 )   2020年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    We assess the performance of a perturbation theory inspired method for inferring cosmological parameters from the joint measurements of galaxy-galaxy weak lensing (Δς) and the projected galaxy clustering (wp). To do this, we use a wide variety of mock galaxy catalogs constructed based on a large set of N-body simulations that mimic the Subaru HSC-Y1 and SDSS galaxies and apply the method to the mock signals to address whether to recover the underlying true cosmological parameters in the mocks. We find that, as long as the appropriate scale cuts, 12 and 8h-1 Mpc for Δς and wp, respectively, are adopted, a "minimal-bias"model using the linear bias parameter b1 alone and the nonlinear matter power spectrum can recover the true cosmological parameters (here focused on ωm and σ8) to within the 68% credible interval, for all the mocks we study, including one in which an assembly bias effect is implemented. This is as expected if physical processes inherent in galaxy formation and evolution are confined to local, small scales below the scale cut and thus implies that real-space observables have an advantage in filtering out the impact of small-scale nonlinear effects in parameter estimation, compared to their Fourier-space counterparts. In addition, we find that a theoretical template including the higher-order bias contributions such as nonlinear bias parameter (b2) does not improve the cosmological constraints, but rather leads to a larger parameter bias compared to the baseline b1 method. Another nontrivial finding is that the cosmological parameters are not necessarily recovered, even when the model prediction is used as the input mock signals, as a consequence of marginalization or projection of asymmetric posterior distributions in a multidimensional parameter space, such as the case of the "banana-shaped"distribution in the (ωm,σ8) plane. We also study the performance of alternative observables, ϒ or Y statistic, where the same scale cut for both the weak lensing and the galaxy clustering can be employed thanks to their same sensitivity to the Fourier modes, but do not find a promising advantage of these statistics over the fiducial observables {Δς,wp}.

    DOI: 10.1103/PhysRevD.102.083520

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  46. Weak lensing measurement of filamentary structure with the SDSS BOSS and <i>Subaru</i> Hyper Suprime-Cam data 査読有り

    Kondo, H; Miyatake, H; Shirasaki, M; Sugiyama, N; Nishizawa, AJ

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   495 巻 ( 4 ) 頁: 3695 - 3704   2020年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Monthly Notices of the Royal Astronomical Society  

    We report the weak lensing measurement of filaments between Sloan Digital Sky Survey (SDSS) III/Baryon Oscillation Spectroscopic Survey (BOSS) CMASS galaxy pairs at z ∼ 0.55, using the Subaru Hyper Suprime-Cam (HSC) first-year galaxy shape catalogue. Despite of the small overlap of 140 deg2between these surveys, we detect the filament lensing signal at 3.9Ï significance, which is the highest signal-to-noise lensing measurement of filaments between galaxy-scale haloes at this redshift range. We derive a theoretical prediction and covariance using mock catalogues based on full-sky ray-tracing simulations. We find that the intrinsic scatter of filament properties and the fluctuations in a large-scale structure along the line of sight are the primary component of the covariance and the intrinsic shape noise from source galaxies no longer limits our lensing measurement. This fact demonstrates the statistical power of the HSC survey due to its deep observations and high number density of source galaxies. Our result is consistent with the theoretical prediction and supports the âthickâ™ filament model. As the HSC survey area increases, we will be able to study detailed filament properties such as the dark matter distributions and redshift evolution of filaments.

    DOI: 10.1093/mnras/staa1390

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    arXiv

    その他リンク: http://arxiv.org/pdf/1905.08991v1

  47. Tomographic galaxy clustering with the Subaru Hyper Suprime-Cam first year public data release 査読有り

    Nicola, Andrina; Alonso, David; Sánchez, Javier; Slosar, Anže; Awan, Humna; Broussard, Adam; Dunkley, Jo; Gawiser, Eric; Gomes, Zahra; Mandelbaum, Rachel; Miyatake, Hironao; Newman, Jeffrey A.; Sevilla-Noarbe, Ignacio; Skinner, Sarah; Wagoner, Erika L.

    Journal of Cosmology and Astroparticle Physics   3 巻 ( 044 )   2020年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/1475-7516/2020/03/044

  48. Cross-correlation of the thermal Sunyaev-Zel'dovich effect and weak gravitational lensing: Planck and Subaru Hyper Suprime-Cam first-year data 査読有り

    Osato Ken, Shirasaki Masato, Miyatake Hironao, Nagai Daisuke, Yoshida Naoki, Oguri Masamune, Takahashi Ryuichi

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   492 巻 ( 4 ) 頁: 4780-4804   2020年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/mnras/staa117

    Web of Science

  49. Weak-lensing Analysis of X-Ray-selected XXL Galaxy Groups and Clusters with Subaru HSC Data 査読有り

    Umetsu K.

    Astrophysical Journal   890 巻 ( 2 )   2020年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3847/1538-4357/ab6bca

    Scopus

  50. Cosmological constraints from cosmic shear two-point correlation functions with HSC survey first-year data 査読有り

    Hamana Takashi, Shirasaki Masato, Miyazaki Satoshi, Hikage Chiaki, Oguri Masamune, More Surhud, Armstrong Robert, Leauthaud Alexie, Mandelbaum Rachel, Miyatake Hironao, Nishizawa Atsushi J., Simet Melanie, Takada Masahiro, Aihara Hiroaki, Bosch James, Komiyama Yutaka, Lupton Robert, Murayama Hitoshi, Strauss Michael A., Tanaka Masayuki

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   72 巻 ( 1 )   2020年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psz138

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  51. Second data release of the Hyper Suprime-Cam Subaru Strategic Program 査読有り

    Aihara Hiroaki, AlSayyad Yusra, Ando Makoto, Armstrong Robert, Bosch James, Egami Eiichi, Furusawa Hisanori, Furusawa Junko, Goulding Andy, Harikane Yuichi, Hikage Chiaki, Ho Paul T. P., Hsieh Bau-Ching, Huang Song, Ikeda Hiroyuki, Imanishi Masatoshi, Ito Kei, Iwata Ikuru, Jaelani Anton T., Kakuma Ryota, Kawana Kojiro, Kikuta Satoshi, Kobayashi Umi, Koike Michitaro, Komiyama Yutaka, Li Xiangchong, Liang Yongming, Lin Yen-Ting, Luo Wentao, Lupton Robert, Lust Nate B., MacArthur Lauren A., Matsuoka Yoshiki, Mineo Sogo, Miyatake Hironao, Miyazaki Satoshi, More Surhud, Murata Ryoma, Namiki Shigeru V, Nishizawa Atsushi J., Oguri Masamune, Okabe Nobuhiro, Okamoto Sakurako, Okura Yuki, Ono Yoshiaki, Onodera Masato, Onoue Masafusa, Osato Ken, Ouchi Masami, Shibuya Takatoshi, Strauss Michael A., Sugiyama Naoshi, Suto Yasushi, Takada Masahiro, Takagi Yuhei, Takata Tadafumi, Takita Satoshi, Tanaka Masayuki, Terai Tsuyoshi, Toba Yoshiki, Uchiyama Hisakazu, Utsumi Yousuke, Wang Shiang-Yu, Wang Wenting, Yamada Yoshihiko

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   71 巻 ( 6 )   2019年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psz103

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  52. Dark Quest. I. Fast and Accurate Emulation of Halo Clustering Statistics and Its Application to Galaxy Clustering

    Nishimichi Takahiro, Takada Masahiro, Takahashi Ryuichi, Osato Ken, Shirasaki Masato, Oogi Taira, Miyatake Hironao, Oguri Masamune, Murata Ryoma, Kobayashi Yosuke, Yoshida Naoki

    ASTROPHYSICAL JOURNAL   884 巻 ( 1 )   2019年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astrophysical Journal  

    We perform an ensemble of N-body simulations with 20483 particles for 101 flat wCDM cosmological models sampled based on a maximin distance sliced Latin hypercube design. By using the halo catalogs extracted at multiple redshifts in the range of z = [0,1.48], we develop Dark Emulator, which enables fast and accurate computations of the halo mass function, halo-matter cross-correlation, and halo autocorrelation as a function of halo masses, redshift, separations, and cosmological models based on principal component analysis and Gaussian process regression for the large-dimensional input and output data vector. We assess the performance of the emulator using a validation set of N-body simulations that are not used in training the emulator. We show that, for typical halos hosting CMASS galaxies in the Sloan Digital Sky Survey, the emulator predicts the halo-matter cross-correlation, relevant for galaxy-galaxy weak lensing, with an accuracy better than 2% and the halo autocorrelation, relevant for galaxy clustering correlation, with an accuracy better than 4%. We give several demonstrations of the emulator. It can be used to study properties of halo mass density profiles such as the concentration-mass relation and splashback radius for different cosmologies. The emulator outputs can be combined with an analytical prescription of halo-galaxy connection, such as the halo occupation distribution at the equation level, instead of using the mock catalogs to make accurate predictions of galaxy clustering statistics, such as galaxy-galaxy weak lensing and the projected correlation function for any model within the wCDM cosmologies, in a few CPU seconds.

    DOI: 10.3847/1538-4357/ab3719

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  53. On the Assembly Bias of Cool Core Clusters Traced by H alpha Nebulae 査読有り

    Medezinski Elinor, McDonald Michael, More Surhud, Miyatake Hironao, Battaglia Nicholas, Gaspari Massimo, Spergel David, Cen Renyue

    ASTROPHYSICAL JOURNAL   882 巻 ( 2 )   2019年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3847/1538-4357/ab2da2

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  54. Evidence for the Cross-correlation between Cosmic Microwave Background Polarization Lensing from Polarbear and Cosmic Shear from Subaru Hyper Suprime-Cam 査読有り

    Namikawa T., Chinone Y., Miyatake H., Oguri M., Takahashi R., Kusaka A., Katayama N., Adachi S., Aguilar M., Aihara H., Ali A., Armstrong R., Arnold K., Baccigalupi C., Barron D., Beck D., Beckman S., Bianchini F., Boettger D., Borrill J., Cheung K., Corbett L., Crowley K. T., El Bouhargani H., Elleflot T., Errard J., Fabbian G., Feng C., Galitzki N., Goeckner-Wald N., Groh J., Hamada T., Hasegawa M., Hazumi M., Hill C. A., Howe L., Jeong O., Kaneko D., Keating B., Lee A. T., Leon D., Linder E., Lowry L. N., Mangu A., Matsuda F., Minami Y., Miyazaki S., Murayama H., Navaroli M., Nishino H., Nishizawa A. J., Pham A. T. P., Poletti D., Puglisi G., Reichardt C. L., Sherwin B. D., Silva-Feaver M., Siritanasak P., Speagle J. S., Stompor R., Suzuki A., Tait P. J., Tajima O., Takada M., Takakura S., Takatori S., Tanabe D., Tanaka M., Teply G. P., Tsai C., Verges C., Westbrook B., Zhou Y.

    ASTROPHYSICAL JOURNAL   882 巻 ( 1 )   2019年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astrophysical Journal  

    We present the first measurement of cross-correlation between the lensing potential, reconstructed from cosmic microwave background (CMB) polarization data, and the cosmic shear field from galaxy shapes. This measurement is made using data from the Polarbear CMB experiment and the Subaru Hyper Suprime-Cam (HSC) survey. By analyzing an 11 deg2 overlapping region, we reject the null hypothesis at 3.5σ and constrain the amplitude of the cross-spectrum to , where is the amplitude normalized with respect to the Planck 2018 prediction, based on the flat Λ cold dark matter cosmology. The first measurement of this cross-spectrum without relying on CMB temperature measurements is possible owing to the deep Polarbear map with a noise level of ∼6 μK arcmin, as well as the deep HSC data with a high galaxy number density of . We present a detailed study of the systematics budget to show that residual systematics in our results are negligibly small, which demonstrates the future potential of this cross-correlation technique.

    DOI: 10.3847/1538-4357/ab3424

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  55. Mock galaxy shape catalogues in the Subaru Hyper Suprime-Cam Survey 査読有り

    Shirasaki Masato, Hamana Takashi, Takada Masahiro, Takahashi Ryuichi, Miyatake Hironao

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   486 巻 ( 1 ) 頁: 52-69   2019年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/mnras/stz791

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  56. Weak-lensing Mass Calibration of ACTPol Sunyaev-Zel'dovich Clusters with the Hyper Suprime-Cam Survey 査読有り

    Miyatake Hironao, Battaglia Nicholas, Hilton Matt, Medezinski Elinor, Nishizawa Atsushi J., More Surhud, Aiola Simone, Bahcall Neta, Bond J. Richard, Calabrese Erminia, Choi Steve K., Devlin Mark J., Dunkley Joanna, Dunner Rolando, Fuzia Brittany, Gallardo Patricio, Gralla Megan, Hasselfield Matthew, Halpern Mark, Hikage Chiaki, Hill J. Colin, Hincks Adam D., Hlozek Renee, Huffenberger Kevin, Hughes John P., Koopman Brian, Kosowsky Arthur, Louis Thibaut, Madhavacheril Mathew S., McMahon Jeff, Mandelbaum Rachel, Marriage Tobias A., Maurin Loic, Miyazaki Satoshi, Moodley Kavilan, Murata Ryoma, Naess Sigurd, Newburgh Laura, Niemack Michael D., Nishimichi Takahiro, Okabe Nobuhiro, Oguri Masamune, Osato Ken, Page Lyman, Partridges Bruce, Robertson Naomi, Sehgal Neelima, Sherwin Blake, Shirasaki Masato, Sievers Jonathan, Sifon Cristobal, Simon Sara, Spergel David N., Staggs Suzanne T., Stein George, Takada Masahiro, Trac Hy, Umetsu Keiichi, van Engelenl Alex, Wollack Edward J.

    ASTROPHYSICAL JOURNAL   875 巻 ( 1 )   2019年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3847/1538-4357/ab0af0

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  57. Cosmology from cosmic shear power spectra with Subaru Hyper Suprime-Cam first-year data 査読有り

    Hikage, C; Oguri, M; Hamana, T; More, S; Mandelbaum, R; Takada, M; Köhlinger, F; Miyatake, H; Nishizawa, AJ; Aihara, H; Armstrong, R; Bosch, J; Coupon, J; Ducout, A; Ho, P; Hsieh, BC; Komiyama, Y; Lanusse, F; Leauthaud, A; Lupton, RH; Medezinski, E; Mineo, S; Miyama, S; Miyazaki, S; Murata, R; Murayama, H; Shirasaki, M; Sifón, C; Simet, M; Speagle, J; Spergel, DN; Strauss, MA; Sugiyama, N; Tanaka, M; Utsumi, Y; Wang, SY; Yamada, Y

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   71 巻 ( 2 )   2019年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Publications of the Astronomical Society of Japan  

    We measure cosmic weak lensing shear power spectra with the Subaru Hyper Suprime- Cam (HSC) survey first-year shear catalog covering 137 deg2 of the sky. Thanks to the high effective galaxy number density of ∼17 arcmin-2, even after conservative cuts such as a magnitude cut of i < 24.5 and photometric redshift cut of 0.3 ≤ z ≤ 1.5, we obtain a high-significance measurement of the cosmic shear power spectra in four tomographic redshift bins, achieving a total signal-to-noise ratio of 16 in the multipole range 300 ≤ ℓ ≤ 1900. We carefully account for various uncertainties in our analysis including the intrinsic alignment of galaxies, scatters and biases in photometric redshifts, residual uncertainties in the shear measurement, and modeling of the matter power spectrum. The accuracy of our power spectrummeasurement method as well as our analytic model of the covariance matrix are tested against realistic mock shear catalogs. For a flat ∧ cold dark matter model, we find S8 ≡ σ8(Ωm/0.3)α = 0.800+0.029-0.028 for α = 0.45 (S8 = 0.780+0.030-0.033 for α = 0.5) from our HSC tomographic cosmic shear analysis alone. In comparison with Planck cosmic microwave background constraints, our results prefer slightly lower values of S8, although metrics such as the Bayesian evidence ratio test do not show significant evidence for discordance between these results. We study the effect of possible additional systematic errors that are unaccounted for in our fiducial cosmic shear analysis, and find that they can shift the best-fit values of S8 by up to ∼0.6 σ in both directions. The full HSC survey data will contain several times more area, and will lead to significantly improved cosmological constraints.

    DOI: 10.1093/pasj/psz010

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  58. Weak lensing shear calibration with simulations of the HSC survey 査読有り

    Mandelbaum Rachel, Lanusse Francois, Leauthaud Alexie, Armstrong Robert, Simet Melanie, Miyatake Hironao, Meyers Joshua E., Bosch James, Murata Ryoma, Miyazaki Satoshi, Tanaka Masayuki

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   481 巻 ( 3 ) 頁: 3170-3195   2018年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/mnras/sty2420

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  59. Multiwavelength study of X-ray luminous clusters in the Hyper Suprime-Cam Subaru Strategic Program S16A field (vol 70, S22, 2018) 査読有り

    Miyaoka Keita, Okabe Nobuhiro, Kitaguchi Takao, Oguri Masamune, Fukazawa Yasushi, Mandelbaum Rachel, Medezinski Elinor, Babazaki Yasunori, Nishizawa Atsushi J., Hamana Takashi, Lin Yen-Ting, Akamatsu Hiroki, Chiu I-Non, Fujita Yutaka, Ichinohe Yuto, Komiyama Yutaka, Sasaki Toru, Takizawa Motokazu, Ueda Shutaro, Umetsu Keiichi, Coupon Jean, Hikage Chiaki, Hoshino Akio, Leauthaud Alexie, Matsushita Kyoko, Mitsuishi Ikuyuki, Miyatake Hironao, Miyazaki Satoshi, More Surhud, Nakazawa Kazuhiro, Ota Naomi, Sato Kousuke, Spergel David, Tamura Takayuki, Tanaka Masayuki, Tanaka Manobu M., Utsumi Yousuke

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻 ( 3 )   2018年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psy024

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  60. The Atacama Cosmology Telescope: The Two-season ACTPol Sunyaev-Zel'dovich Effect Selected Cluster Catalog 査読有り

    Hilton M.

    Astrophysical Journal, Supplement Series   235 巻 ( 1 )   2018年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3847/1538-4365/aaa6cb

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  61. Source selection for cluster weak lensing measurements in the Hyper Suprime-Cam survey 査読有り

    Medezinski Elinor, Oguri Masamune, Nishizawa Atsushi J., Speagle Joshua S., Miyatake Hironao, Umetsu Keiichi, Leauthaud Alexie, Murata Ryoma, Mandelbaum Rachel, Sifon Cristobal, Strauss Michael A., Huang Song, Simet Melanie, Okabe Nobuhiro, Tanaka Masayuki, Komiyama Yutaka

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻 ( 2 )   2018年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psy009

    Web of Science

  62. Constraints on the Mass-Richness Relation from the Abundance and Weak Lensing of SDSS Clusters 査読有り

    Ryoma Murata, Takahiro Nishimichi, Masahiro Takada, Hironao Miyatake, Masato Shirasaki, Surhud More, Ryuichi Takahashi, and Ken Osato

    Astrophysical Journal   854 巻 ( 2 )   2018年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3847/1538-4357/aaaab8

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  63. Two- and three-dimensional wide-field weak lensing mass maps from the Hyper Suprime-Cam Subaru Strategic Program S16A data 査読有り

    Oguri Masamune, Miyazaki Satoshi, Hikage Chiaki, Mandelbaum Rachel, Utsumi Yousuke, Miyatake Hironao, Takada Masahiro, Armstrong Robert, Bosch James, Komiyama Yutaka, Leauthaud Alexie, More Surhud, Nishizawa Atsushi J., Okabe Nobuhiro, Tanaka Masayuki

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx070

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  64. A large sample of shear-selected clusters from the Hyper Suprime-Cam Subaru Strategic Program S16A Wide field mass maps 査読有り

    Miyazaki Satoshi, Oguri Masamune, Hamana Takashi, Shirasaki Masato, Koike Michitaro, Komiyama Yutaka, Umetsu Keiichi, Utsumi Yousuke, Okabe Nobuhiro, More Surhud, Medezinski Elinor, Lin Yen-Ting, Miyatake Hironao, Murayama Hitoshi, Ota Naomi, Mitsuishi Ikuyuki

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx120

    Web of Science

  65. The Hyper Suprime-Cam SSP Survey: Overview and survey design 査読有り

    Aihara Hiroaki, Arimoto Nobuo, Armstrong Robert, Arnouts Stephane, Bahcall Neta A., Bickerton Steven, Bosch James, Bundy Kevin, Capak Peter L., Chan James H. H., Chiba Masashi, Coupon Jean, Egami Eiichi, Enoki Motohiro, Finet Francois, Fujimori Hiroki, Fujimoto Seiji, Furusawa Hisanori, Furusawa Junko, Goto Tomotsugu, Goulding Andy, Greco Johnny P., Greene Jenny E., Gunn James E., Hamana Takashi, Harikane Yuichi, Hashimoto Yasuhiro, Hattori Takashi, Hayashi Masao, Hayashi Yusuke, Helminiak Krzysztof G., Higuchi Ryo, Hikage Chiaki, Ho Paul T. P., Hsieh Bau-Ching, Huang Kuiyun, Huang Song, Ikeda Hiroyuki, Imanishi Masatoshi, Inoue Akio K., Iwasawa Kazushi, Iwata Ikuru, Jaelani Anton T., Jian Hung-Yu, Kamata Yukiko, Karoji Hiroshi, Kashikawa Nobunari, Katayama Nobuhiko, Kawanomoto Satoshi, Kayo Issha, Koda Jin, Koike Michitaro, Kojima Takashi, Komiyama Yutaka, Konno Akira, Koshida Shintaro, Koyama Yusei, Kusakabe Haruka, Leauthaud Alexie, Lee Chien-Hsiu, Lin Lihwai, Lin Yen-Ting, Lupton Robert H., Mandelbaum Rachel, Matsuoka Yoshiki, Medezinski Elinor, Mineo Sogo, Miyama Shoken, Miyatake Hironao, Miyazaki Satoshi, Momose Rieko, More Anupreeta, More Surhud, Moritani Yuki, Moriya Takashi J., Morokuma Tomoki, Mukae Shiro, Murata Ryoma, Murayama Hitoshi, Nagao Tohru, Nakata Fumiaki, Niida Mana, Niikura Hiroko, Nishizawa Atsushi J., Obuchi Yoshiyuki, Oguri Masamune, Oishi Yukie, Okabe Nobuhiro, Okamoto Sakurako, Okura Yuki, Ono Yoshiaki, Onodera Masato, Onoue Masafusa, Osato Ken, Ouchi Masami, Price Paul A., Pyo Tae-Soo, Sako Masao, Sawicki Marcin, Shibuya Takatoshi, Shimasaku Kazuhiro, Shimono Atsushi, Shirasaki Masato, Silverman John D., Simet Melanie, Speagle Joshua, Spergel David N., Strauss Michael A., Sugahara Yuma, Sugiyama Naoshi, Suto Yasushi, Suyu Sherry H., Suzuki Nao, Tait Philip J., Takada Masahiro, Takata Tadafumi, Tamura Naoyuki, Tanaka Manobu M., Tanaka Masaomi, Tanaka Masayuki, Tanaka Yoko, Terai Tsuyoshi, Terashima Yuichi, Toba Yoshiki, Tominaga Nozomu, Toshikawa Jun, Turner Edwin L., Uchida Tomohisa, Uchiyama Hisakazu, Umetsu Keiichi, Uraguchi Fumihiro, Urata Yuji, Usuda Tomonori, Utsumi Yousuke, Wang Shiang-Yu, Wang Wei-Hao, Wong Kenneth C., Yabe Kiyoto, Yamada Yoshihiko, Yamanoi Hitomi, Yasuda Naoki, Yeh Sherry, Yonehara Atsunori, Yuma Suraphong

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx066

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  66. The first-year shear catalog of the Subaru Hyper Suprime-Cam Subaru Strategic Program Survey 査読有り

    Mandelbaum Rachel, Miyatake Hironao, Hamana Takashi, Oguri Masamune, Simet Melanie, Armstrong Robert, Bosch James, Murata Ryoma, Lanusse Francois, Leauthaud Alexie, Coupon Jean, More Surhud, Takada Masahiro, Miyazaki Satoshi, Speagle Joshua S., Shirasaki Masato, Sifon Cristobal, Huang Song, Nishizawa Atsushi J., Medezinski Elinor, Okura Yuki, Okabe Nobuhiro, Czakon Nicole, Takahashi Ryuichi, Coulton William R., Hikage Chiaki, Komiyama Yutaka, Lupton Robert H., Strauss Michael A., Tanaka Masayuki, Utsumi Yousuke

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx130

    Web of Science

  67. Planck Sunyaev-Zel'dovich cluster mass calibration using Hyper Suprime-Cam weak lensing 査読有り

    Medezinski Elinor, Battaglia Nicholas, Umetsu Keiichi, Oguri Masamune, Miyatake Hironao, Nishizawa Atsushi J., Sifon Cristobal, Spergel David N., Chiu I-Non, Lin Yen-Ting, Bahcall Neta, Komiyama Yutaka

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx128

    Web of Science

  68. Multiwavelength study of X-ray luminous clusters in the Hyper Suprime-Cam Subaru Strategic Program S16A field 査読有り

    Miyaoka Keita, Okabe Nobuhiro, Kitaguchi Takao, Oguri Masamune, Fukazawa Yasushi, Mandelbaum Rachel, Medezinski Elinor, Babazaki Yasunori, Nishizawa Atsushi J., Hamana Takashi, Lin Yen-Ting, Akamatsu Hiroki, Chiu I-Non, Fujita Yutaka, Ichinohe Yuto, Komiyama Yutaka, Sasaki Toru, Takizawa Motokazu, Ueda Shutaro, Umetsu Keiichi, Coupon Jean, Hikage Chiaki, Hoshino Akio, Leauthaud Alexie, Matsushita Kyoko, Mitsuishi Ikuyuki, Miyatake Hironao, Miyazaki Satoshi, More Surhud, Nakazawa Kazuhiro, Ota Naomi, Sato Kousuke, Spergel David, Tamura Takayuki, Tanaka Masayuki, Tanaka Manobu M., Utsumi Yousuke

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx132

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  69. Hyper Suprime-Cam: System design and verification of image quality 査読有り

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    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx063

    Web of Science

  70. First results on the cluster galaxy population from the Subaru Hyper Suprime-Cam survey. II. Faint end color-magnitude diagrams and radial profiles of red and blue galaxies at 0.1 < z < 1.1 査読有り

    Nishizawa Atsushi J., Oguri Masamune, Oogi Taira, More Surhud, Nishimichi Takahiro, Nagashima Masahiro, Lin Yen-Ting, Mandelbaum Rachel, Takada Masahiro, Bahcall Neta, Coupon Jean, Huang Song, Jian Hung-Yu, Komiyama Yutaka, Leauthaud Alexie, Lin Lihwai, Miyatake Hironao, Miyazaki Satoshi, Tanaka Masayuki

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx106

    Web of Science

  71. First data release of the Hyper Suprime-Cam Subaru Strategic Program 査読有り

    Aihara Hiroaki, Armstrong Robert, Bickerton Steven, Bosch James, Coupon Jean, Furusawa Hisanori, Hayashi Yusuke, Ikeda Hiroyuki, Kamata Yukiko, Karoji Hiroshi, Kawanomoto Satoshi, Koike Michitaro, Komiyama Yutaka, Lang Dustin, Lupton Robert H., Mineo Sogo, Miyatake Hironao, Miyazaki Satoshi, Morokuma Tomoki, Obuchi Yoshiyuki, Oishi Yukie, Okura Yuki, Price Paul A., Takata Tadafumi, Tanaka Manobu M., Tanaka Masayuki, Tanaka Yoko, Uchida Tomohisa, Uraguchi Fumihiro, Utsumi Yousuke, Wang Shiang-Yu, Yamada Yoshihiko, Yamanoi Hitomi, Yasuda Naoki, Arimoto Nobuo, Chiba Masashi, Finet Francois, Fujimori Hiroki, Fujimoto Seiji, Furusawa Junko, Goto Tomotsugu, Goulding Andy, Gunn James E., Harikane Yuichi, Hattori Takashi, Hayashi Masao, Helminiak Krzysztof G., Higuchi Ryo, Hikage Chiaki, Ho Paul T. P., Hsieh Bau-Ching, Huang Kuiyun, Huang Song, Imanishi Masatoshi, Iwata Ikuru, Jaelani Anton T., Jian Hung-Yu, Kashikawa Nobunari, Katayama Nobuhiko, Kojima Takashi, Konno Akira, Koshida Shintaro, Kusakabe Haruka, Leauthaud Alexie, Lee Chien-Hsiu, Lin Lihwai, Lin Yen-Ting, Mandelbaum Rachel, Matsuoka Yoshiki, Medezinski Elinor, Miyama Shoken, Momose Rieko, More Anupreeta, More Surhud, Mukae Shiro, Murata Ryoma, Murayama Hitoshi, Nagao Tohru, Nakata Fumiaki, Niida Mana, Niikura Hiroko, Nishizawa Atsushi J., Oguri Masamune, Okabe Nobuhiro, Ono Yoshiaki, Onodera Masato, Onoue Masafusa, Ouchi Masami, Pyo Tae-Soo, Shibuya Takatoshi, Shimasaku Kazuhiro, Simet Melanie, Speagle Joshua, Spergel David N., Strauss Michael A., Sugahara Yuma, Sugiyama Naoshi, Suto Yasushi, Suzuki Nao, Tait Philip J., Takada Masahiro, Terai Tsuyoshi, Toba Yoshiki, Turner Edwin L., Uchiyama Hisakazu, Umetsu Keiichi, Urata Yuji, Usuda Tomonori, Yeh Sherry, Yuma Suraphong

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx081

    Web of Science

  72. An optically-selected cluster catalog at redshift 0.1 < z < 1.1 from the Hyper Suprime-Cam Subaru Strategic Program S16A data 査読有り

    Oguri Masamune, Lin Yen-Ting, Lin Sheng-Chieh, Nishizawa Atsushi J., More Anupreeta, More Surhud, Hsieh Bau-Ching, Medezinski Elinor, Miyatake Hironao, Jian Hung-Yu, Lin Lihwai, Takada Masahiro, Okabe Nobuhiro, Speagle Joshua S., Coupon Jean, Leauthaud Alexie, Lupton Robert H., Miyazaki Satoshi, Price Paul A., Tanaka Masayuki, Chiu I-Non, Komiyama Yutaka, Okura Yuki, Tanaka Manobu M., Usuda Tomonori

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx042

    Web of Science

  73. Hyper Suprime-Cam: Camera dewar design 査読有り

    Komiyama Yutaka, Obuchi Yoshiyuki, Nakaya Hidehiko, Kamata Yukiko, Kawanomoto Satoshi, Utsumi Yousuke, Miyazaki Satoshi, Uraguchi Fumihiro, Furusawa Hisanori, Morokuma Tomoki, Uchida Tomohisa, Miyatake Hironao, Mineo Sogo, Fujimori Hiroki, Aihara Hiroaki, Karoji Hiroshi, Gunn James E., Wang Shiang-Yu

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx069

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  74. The on-site quality-assurance system for Hyper Suprime-Cam: OSQAH 査読有り

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    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx079

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  75. The Hyper Suprime-Cam software pipeline 査読有り

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    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   70 巻   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/pasj/psx080

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  76. Fundamental physics from future weak-lensing calibrated Sunyaev-Zel'dovich galaxy cluster counts 査読有り

    Madhavacheril Mathew S., Battaglia Nicholas, Miyatake Hironao

    PHYSICAL REVIEW D   96 巻 ( 10 )   2017年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1103/PhysRevD.96.103525

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  77. Robust covariance estimation of galaxy-galaxy weak lensing: Validation and limitation of jackknife covariance 査読有り

    Shirasaki M.

    Monthly Notices of the Royal Astronomical Society   470 巻 ( 3 ) 頁: 3476-3496   2017年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/MNRAS/STX1477

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  78. Looking through the same lens: Shear calibration for LSST, Euclid, and WFIRST with stage 4 CMB lensing 査読有り

    Schaan Emmanuel, Krause Elisabeth, Eifler Tim, Dore Olivier, Miyatake Hironao, Rhodes Jason, Spergel David N.

    PHYSICAL REVIEW D   95 巻 ( 12 )   2017年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1103/PhysRevD.95.123512

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  79. Measurement of a Cosmographic Distance Ratio with Galaxy and Cosmic Microwave Background Lensing. 査読有り

    Miyatake H, Madhavacheril MS, Sehgal N, Slosar A, Spergel DN, Sherwin B, van Engelen A

    Physical review letters   118 巻 ( 16 ) 頁: 161301   2017年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1103/PhysRevLett.118.161301

    PubMed

  80. Testing gravity on large scales by combining weak lensing with galaxy clustering using CFHTLenS and BOSS CMASS 査読有り

    Alam Shadab, Miyatake Hironao, More Surhud, Ho Shirley, Mandelbaum Rachel

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   465 巻 ( 4 ) 頁: 4853-4865   2017年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/mnras/stw3056

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  81. Weak-lensing mass calibration of the Atacama Cosmology Telescope equatorial Sunyaev-Zeldovich cluster sample with the Canada-France-Hawaii telescope stripe 82 survey 査読有り

    Battaglia N., Leauthaud A., Miyatake H., Hasselfield M., Grallad M. B., Allison R., Bond J. R., Calabrese E., Crichton D., Devlin M. J., Dunkley J., Duenner R., Erben T., Ferrara S., Halpern M., Hilton M., Hill J. C., Hincks A. D., Hlozek R., Huffenberger K. M., Hughes J. P., Kneib J. P., Kosowsky A., Makler M., Marriage T. A., Menanteaus F., Miller L., Moodley K., Moraesv B., Niemack M. D., Page L., Shan H., Sehgal N., Sherwin B. D., Sievers J. L., Sifon C., Spergel D. N., Staggs S. T., Taylor J. E., Thornton R., van Waerbekek L., Wollackag E. J.

    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS   2016 巻 ( 8 )   2016年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/1475-7516/2016/08/013

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  82. DETECTION OF THE SPLASHBACK RADIUS AND HALO ASSEMBLY BIAS OF MASSIVE GALAXY CLUSTERS 査読有り

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    ASTROPHYSICAL JOURNAL   825 巻 ( 1 )   2016年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3847/0004-637X/825/1/39

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  83. Detection of stacked filament lensing between SDSS luminous red galaxies 査読有り

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    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   457 巻 ( 3 ) 頁: 2391-2400   2016年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/mnras/stw142

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  84. Evidence of Halo Assembly Bias in Massive Clusters 査読有り

    Miyatake Hironao, More Surhud, Takada Masahiro, Spergel David N., Mandelbaum Rachel, Rykoff Eli S., Rozo Eduardo

    PHYSICAL REVIEW LETTERS   116 巻 ( 4 ) 頁: 041301   2016年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1103/PhysRevLett.116.041301

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  85. GREAT3 results - I. Systematic errors in shear estimation and the impact of real galaxy morphology 査読有り

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    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   450 巻 ( 3 ) 頁: 2963-3007   2015年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/mnras/stv781

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  86. THE ELEVENTH AND TWELFTH DATA RELEASES OF THE SLOAN DIGITAL SKY SURVEY: FINAL DATA FROM SDSS-III 査読有り

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    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   219 巻 ( 1 )   2015年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/0067-0049/219/1/12

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  87. THE WEAK LENSING SIGNAL AND THE CLUSTERING OF BOSS GALAXIES. I. MEASUREMENTS 査読有り

    Miyatake Hironao, More Surhud, Mandelbaum Rachel, Takada Masahiro, Spergel David N., Kneib Jean-Paul, Schneider Donald P., Brinkmann J., Brownstein Joel R.

    ASTROPHYSICAL JOURNAL   806 巻 ( 1 )   2015年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/0004-637X/806/1/1

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  88. THE WEAK LENSING SIGNAL AND THE CLUSTERING OF BOSS GALAXIES. II. ASTROPHYSICAL AND COSMOLOGICAL CONSTRAINTS 査読有り

    More Surhud, Miyatake Hironao, Mandelbaum Rachel, Takada Masahiro, Spergel David. N., Brownstein Joel R., Schneider Donald P.

    ASTROPHYSICAL JOURNAL   806 巻 ( 1 )   2015年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/0004-637X/806/1/2

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  89. GALSIM: The modular galaxy image simulation toolkit 査読有り

    Rowe B. T. P., Jarvis M., Mandelbaum R., Bernstein G. M., Bosch J., Simet M., Meyers J. E., Kacprzak T., Nakajima R., Zuntz J., Miyatake H., Dietrich J. P., Armstrong R., Melchior P., Gill M. S. S.

    ASTRONOMY AND COMPUTING   10 巻   頁: 121-150   2015年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.ascom.2015.02.002

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  90. THE THIRD GRAVITATIONAL LENSING ACCURACY TESTING (GREAT3) CHALLENGE HANDBOOK 査読有り

    Mandelbaum Rachel, Rowe Barnaby, Bosch James, Chang Chihway, Courbin Frederic, Gill Mandeep, Jarvis Mike, Kannawadi Arun, Kacprzak Tomasz, Lackner Claire, Leauthaud Alexie, Miyatake Hironao, Nakajima Reiko, Rhodes Jason, Simet Melanie, Zuntz Joe, Armstrong Bob, Bridle Sarah, Coupon Jean, Dietrich Jorg P., Gentile Marc, Heymans Catherine, Jurling Alden S., Kent Stephen M., Kirkby David, Margala Daniel, Massey Richard, Melchior Peter, Peterson John, Roodman Aaron, Schrabback Tim

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   212 巻 ( 1 )   2014年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/0067-0049/212/1/5

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  91. The GREAT3 challenge

    Miyatake H., Mandelbaum R., Rowe B.

    JOURNAL OF INSTRUMENTATION   9 巻 ( 4 )   2014年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/1748-0221/9/04/C04031

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  92. THE TENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST SPECTROSCOPIC DATA FROM THE SDSS-III APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT 査読有り

    Ahn Christopher P., Alexandroff Rachael, Allende Prieto Carlos, Anders Friedrich, Anderson Scott F., Anderton Timothy, Andrews Brett H., Aubourg Eric, Bailey Stephen, Bastien Fabienne A., Bautista Julian E., Beers Timothy C., Beifiori Alessandra, Bender Chad F., Berlind Andreas A., Beutler Florian, Bhardwaj Vaishali, Bird Jonathan C., Bizyaev Dmitry, Blake Cullen H., Blanton Michael R., Blomqvist Michael, Bochanski John J., Bolton Adam S., Borde Arnaud, Bovy Jo, Bradley Alaina Shelden, Brandt W. N., Brauer Dorothee, Brinkmann J., Brownstein Joel R., Busca Nicolas G., Carithers William, Carlberg Joleen K., Carnero Aurelio R., Carr Michael A., Chiappini Cristina, Chojnowski S. Drew, Chuang Chia-Hsun, Comparat Johan, Crepp Justin R., Cristiani Stefano, Croft Rupert A. C., Cuesta Antonio J., Cunha Katia, da Costa Luiz N., Dawson Kyle S., De Lee Nathan, Dean Janice D. R., Delubac Timothee, Deshpande Rohit, Dhital Saurav, Ealet Anne, Ebelke Garrett L., Edmondson Edward M., Eisenstein Daniel J., Epstein Courtney R., Escoffier Stephanie, Esposito Massimiliano, Evans Michael L., Fabbian D., Fan Xiaohui, Favole Ginevra, Femenia Castella Bruno, Fernandez Alvar Emma, Feuillet Diane, Ak Nurten Filiz, Finley Hayley, Fleming Scott W., Font-Ribera Andreu, Frinchaboy Peter M., Galbraith-Frew J. G., Garcia-Hernandez D. A., Perez Ana E. Garcia, Ge Jian, Genova-Santos R., Gillespie Bruce A., Girardi Leo, Gonzalez Hernandez Jonay I., Gott J. Richard III, Gunn James E., Guo Hong, Halverson Samuel, Harding Paul, Harris DavidW., Hasselquist Sten, Hawley Suzanne L., Hayden Michael, Hearty Frederick R., Herrero Davo Artemio, Ho Shirley, Hogg David W., Holtzman Jon A., Honscheid Klaus, Huehnerhoff Joseph, Ivans Inese I., Jackson Kelly M., Jiang Peng, Johnson Jennifer A., Kinemuchi K., Kirkby David, Klaene Mark A., Kneib Jean-Paul, Koesterke Lars, Lan Ting-Wen, Lang Dustin, Le Goff Jean-Marc, Leauthaud Alexie, Lee Khee-Gan, Lee Young Sun, Long Daniel C., Loomis Craig P., Lucatello Sara, Lupton Robert H., Ma Bo, Mack Claude E. III, Mahadevan Suvrath, Maia Marcio A. G., Majewski Steven R., Malanushenko Elena, Malanushenko Viktor, Manchado A., Manera Marc, Maraston Claudia, Margala Daniel, Martell Sarah L., Masters Karen L., McBride Cameron K., McGreer Ian D., McMahon Richard G., Menard Brice, Meszaros Sz., Miralda-Escude Jordi, Miyatake Hironao, Montero-Dorta Antonio D., Montesano Francesco, More Surhud, Morrison Heather L., Muna Demitri, Munn Jeffrey A., Myers Adam D., Duy Cuong Nguyen, Nichol Robert C., Nidever David L., Noterdaeme Pasquier, Nuza Sebastian E., O'Connell Julia E., O'Connell Robert W., O'Connell Ross, Olmstead Matthew D., Oravetz Daniel J., Owen Russell, Padmanabhan Nikhil, Palanque-Delabrouille Nathalie, Pan Kaike, Parejko John K., Parihar Prachi, Paris Isabelle, Pepper Joshua, Percival Will J., Perez-Rafols Ignasi, Perottoni Helio Dotto, Petitjean Patrick, Pieri Matthew M., Pinsonneault M. H., Prada Francisco, Price-Whelan Adrian M., Raddick M. Jordan, Rahman Mubdi, Rebolo Rafael, Reid Beth A., Richards Jonathan C., Riffel Rogerio, Robin Annie C., Rocha-Pinto H. J., Rockosi Constance M., Roe Natalie A., Ross Ashley J., Ross Nicholas P., Rossi Graziano, Roy Arpita, Rubino-Martin J. A., Sabiu Cristiano G., Sanchez Ariel G., Santiago Basilio, Sayres Conor, Schiavon Ricardo P., Schlegel David J., Schlesinger Katharine J., Schmidt Sarah J., Schneider Donald P., Schultheis Mathias, Sellgren Kris, Seo Hee-Jong, Shen Yue, Shetrone Matthew, Shu Yiping, Simmons Audrey E., Skrutskie M. F., Slosar Anze, Smith Verne V., Snedden Stephanie A., Sobeck Jennifer S., Sobreira Flavia, Stassun Keivan G., Steinmetz Matthias, Strauss Michael A., Streblyanska Alina, Suzuki Nao, Swanson Molly E. C., Terrien Ryan C., Thakar Aniruddha R., Thomas Daniel, Thompson Benjamin A., Tinker Jeremy L., Tojeiro Rita, Troup Nicholas W., Vandenberg Jan, Magana Mariana Vargas, Viel Matteo, Vogt Nicole P., Wake David A., Weaver Benjamin A., Weinberg David H., Weiner Benjamin J., White Martin, White Simon D. M., Wilson John C., Wisniewski John P., Wood-Vasey W. M., Yeche Christophe, York Donald G., Zamora O., Zasowski Gail, Zehavi Idit, Zhao Gong-Bo, Zheng Zheng, Zhu Guangtun

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   211 巻 ( 2 )   2014年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/0067-0049/211/2/17

    Web of Science

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    J-GLOBAL

  93. Development of database system for data obtained by Hyper Suprime-cam on Subaru Telescope

    Yamada Yoshihiko, Takata Tadafumi, Furusawa Hisanori, Okura Yuki, Koike Michitaro, Yamanoi Hitomi, Mineo Sogo, Yasuda Naoki, Bickerton Steve, Katayama Nobuhiko, Lupton Robert H., Bosch Jim, Loomis Craig, Miyatake Hironao, Price Paul A., Smith Kendrick, Lang Dustin

    OBSERVATORY OPERATIONS: STRATEGIES, PROCESSES, AND SYSTEMS V   9149 巻   2014年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1117/12.2056540

    Web of Science

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  94. Development of a Database System for Data Obtained by Hyper Suprime-Cam on the Subaru Telescope

    Yamada Y., Takata T., Furusawa H., Okura Y., Koike M., Yamanoi H., Yasuda N., Bickerton S., Katayama N., Mineo S., Lupton R., Bosch J., Loomis C., Miyatake H., Price P., Smith K., Lang D.

    ASTRONOMICAL DATA ANALYSIS SOFTWARE AND SYSTEMS XXIII   485 巻   頁: 243-246   2014年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  95. Development of a Database System for Data Obtained by Hyper Suprime-Cam on the Subaru Telescope

    Yamada, Y; Takata, T; Furusawa, H; Okura, Y; Koike, M; Yamanoi, H; Yasuda, N; Bickerton, S; Katayama, N; Mineo, S; Lupton, R; Bosch, J; Loomis, C; Miyatake, H; Price, P; Smith, K; Lang, D

    ASTRONOMICAL DATA ANALYSIS SOFTWARE AND SYSTEMS XXIII   485 巻   頁: 243 - 246   2014年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Web of Science

  96. Subaru weak lensing measurement of a z=0.81 cluster discovered by the Atacama Cosmology Telescope Survey 査読有り

    Miyatake Hironao, Nishizawa Atsushi J., Takada Masahiro, Mandelbaum Rachel, Mineo Sogo, Aihara Hiroaki, Spergel David N., Bickerton Steven J., Bond J. Richard, Gralla Megan, Hajian Amir, Hilton Matt, Hincks Adam D., Hughes John P., Infante Leopoldo, Lin Yen-Ting, Lupton Robert H., Marriage Tobias A., Marsden Danica, Menanteau Felipe, Miyazaki Satoshi, Moodley Kavilan, Niemack Michael D., Oguri Masamune, Price Paul A., Reese Erik D., Sifon Cristobal, Wollack Edward J., Yasuda Naoki

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   429 巻 ( 4 ) 頁: 3627-3644   2013年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/mnras/sts643

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  97. Back-End Readout Electronics for Hyper Suprime-Cam 査読有り

    H. Miyatake, H. Fujimori, H. Aihara, S. Mineo, S. Miyazaki, H. Nakaya, and T. Uchida

    IEEE Transactions on Nuclear Science   59 巻 ( 4,Pt.3 ) 頁: 1767-1771   2012年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1109/TNS.2012.2201169

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  98. Hyper Suprime-Cam 査読有り

    Miyazaki S., Komiyama Y., Nakaya H., Kamata Y., Doi Y., Hamana T., Karoji H., Furusawa H., Kawanomoto S., Morokuma T., Ishizuka Y., Nariai K., Tanaka Y., Uraguchi F., Utsumi Y., Obuchi Y., Okura Y., Oguri M., Takata T., Tomono D., Kurakami T., Namikawa K., Usuda T., Yamanoi H., Terai T., Uekiyo H., Yamada Y., Koike M., Aihara H., Fujimori Y., Mineo S., Miyatake H., Yasuda N., Nishizawa J., Saito T., Tanaka M., Uchida T., Katayama N., Wang S.Y., Chen H.Y., Lupton R., Loomis C., Bickerton S., Price P., Gunn J., Suzuki H., Miyazaki Y., Muramatsu M., Yamamoto K., Endo M., Ezaki Y., Itoh N., Miwa Y., Yokota H., Matsuda T., Ebinuma R., Takeshi K.

    Proceedings of SPIE - The International Society for Optical Engineering   8446 巻   2012年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:Proceedings of SPIE - The International Society for Optical Engineering  

    Hyper Suprime-Cam (HSC) is an 870 Mega pixel prime focus camera for the 8.2 m Subaru telescope. The wide field corrector delivers sharp image of 0.25 arc-sec FWHM in r-band over the entire 1.5 degree (in diameter) field of view. The collimation of the camera with respect to the optical axis of the primary mirror is realized by hexapod actuators whose mechanical accuracy is few microns. As a result, we expect to have seeing limited image most of the time. Expected median seeing is 0.67 arc-sec FWHM in i-band. The sensor is a p-ch fully depleted CCD of 200 micron thickness (2048 x 4096 15 μm square pixel) and we employ 116 of them to pave the 50 cm focal plane. Minimum interval between exposures is roughly 30 seconds including reading out arrays, transferring data to the control computer and saving them to the hard drive. HSC uniquely features the combination of large primary mirror, wide field of view, sharp image and high sensitivity especially in red. This enables accurate shape measurement of faint galaxies which is critical for planned weak lensing survey to probe the nature of dark energy. The system is being assembled now and will see the first light in August 2012. © 2012 SPIE.

    DOI: 10.1117/12.926844

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  99. Readout Electronics for Hyper Suprime-Cam 査読有り

    Miyatake H., Aihara H., Fujimori H., Mineo S., Miyazaki S., Nakaya H., Uchida T.

    Physics Procedia   37 巻   頁: 1413 - 1420   2012年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:Physics Procedia  

    Hyper Suprime-Cam(HSC)isa1GigapixelCCD camerafora wide-fieldgalaxy surveyatthe Subaru8-mTelescope. It will be mounted on the prime focus of the SubaruTelescope and is scheduled to receive its first light in 2012. The primary science is to conduct a weak lensing survey over ∼ 2,000 square degrees. The HSC has a 1.5-degree-diameter fieldofview, 7timeslarger than thatofits predecessor Suprime-Cam.It consistsofalarge corrector lens systemand afocalplane equippedwith116piecesof2kx4kfully depletedCCDs. Combinedwiththesuperbimagequalityand large aperture of the Subaru telescope, the surveyusing HSC can cover a cosmological volume and reach the limiting magnitude of at least one magnitudefainter than the other surveys conducted using 4-m class telescopes. The readout electronics of the HSC consist of two parts: one is the analog front-end electronics (FEE) and the other is the digital back-end electronics (BEE). The FEE is placed in a vacuum dewar together with the CCDs, and processes the analog CCD signal into 16-bit digital data. The BEE is small and light enough to be integrated into the camera unit, and employs three linksofGigabit Ethernetto readouta 2.3-GByte singleexposure within10 secondsatfast readout operation. The readout noise from the electronics is smaller than that from CCDs.

    DOI: 10.1016/j.phpro.2012.03.742

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  100. Hyper Suprime-Cam: Performance of the CCD Readout Electronics 査読有り

    Nakaya, H; Miyatake, H; Uchida, T; Fujimori, H; Mineo, S; Aihara, H; Furusawa, H; Kamata, Y; Karoji, H; Kawanomoto, S; Komiyama, Y; Miyazaki, S; Morokuma, T; Obuchi, Y; Okura, Y; Tanaka, M; Tanaka, Y; Uraguchi, F; Utsumi, Y

    HIGH ENERGY, OPTICAL, AND INFRARED DETECTORS FOR ASTRONOMY V   8453 巻   2012年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:Proceedings of SPIE - The International Society for Optical Engineering  

    Hyper Suprime-Cam (HSC) employs 116 pieces of 2k×4k fully-depleted CCD with a total of 464 signal outputs to cover the 1.5 degrees diameter field of view. The readout electronics was designed to achieve ∼5 e of the readout noise and 150000 e of the fullwell capacity with 20 seconds readout time. Although the image size exceeds 2G Bytes, the readout electronics supports the 10 seconds readout time for the entire CCDs continuously. All of the readout electronics and the CCDs have already been installed in the camera dewar. The camera has been built with equipment such as coolers and an ion pump. We report the readout performance of all channels of the electronics extracted from the recent test data. © 2012 SPIE.

    DOI: 10.1117/12.925764

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▼全件表示

MISC 3

  1. 摂動論的手法の検証とHSC初年度データからの宇宙論パラメタの制限

    杉山素直, 高田昌広, 宮武広直, PARK Youngsoo, 小林洋祐, 西道啓博  

    日本天文学会年会講演予稿集2020 巻   2020年

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  2. HSC弱重力レンズ効果による天文学

    梅津敬一, 大栗真宗, 大栗真宗, 浜名崇, 日影千秋, 宮武広直  

    天文月報112 巻 ( 2 )   2019年

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  3. EUREKA 銀河団におけるハロー・アセンブリ・バイアスの検出

    宮武 広直  

    天文月報 = The astronomical herald109 巻 ( 6 ) 頁: 409 - 417   2016年6月

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    記述言語:日本語   出版者・発行元:日本天文学会  

    CiNii Books

講演・口頭発表等 70

  1. Weak Lensing Cosmology from Subaru Hyper Suprime-Cam Survey 招待有り 国際会議

    Hironao Miyatake

    International Astronomical Union (IAU) General Assembly  2022年8月10日 

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    開催年月日: 2022年8月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

  2. Photo-z calibration for Weak Lensing Cosmology with Nancy Grace Roman Space Telescope 国際会議

    Hironao Miyatake

    The First SUPER-IRNET Workshop ~ Rebooting Our In-Person Collaboration ~  2023年3月23日 

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    開催年月日: 2023年3月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Nationao Astronomical Observatory of Japan   国名:日本国  

  3. すばる HSC の3年度データと SDSS データを用いた宇宙論解析: 弱重力レンズ信号とクラスタリング信号の測定

    宮武広直

    日本天文学会2023年春季年会  2023年3月15日 

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    開催年月日: 2023年3月

    記述言語:日本語   会議種別:口頭発表(一般)  

    開催地:立教大学   国名:日本国  

  4. Study of assembly bias and splashback radius through multiwavelength data set and weak lensing 国際会議

    Hironao Miyatake

    "What is dark matter? - Comprehensive study of the huge discovery space in dark matter"  2023年3月7日 

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    開催年月日: 2023年3月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Kavli IPMU, University of Tokyo   国名:日本国  

  5. Cosmology with HSC and upcoming galaxy imaging surveys 国際会議

    Hironao Miyatake

    The 5th KMI International Symposium  2023年2月21日 

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    開催年月日: 2023年2月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Nagoya University   国名:日本国  

  6. Current status of cosmology analysis with weak lensing and clustering using HSC-Y3 and BOSS 国際会議

    Hironao Miyatake

    Subaru Users Meeting FY2022  2023年2月2日 

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    開催年月日: 2023年1月 - 2023年2月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Nationao Astronomical Observatory of Japan   国名:日本国  

  7. 観測的宇宙論: 大規模銀河サーベイの現状と将来 招待有り

    宮武広直

    理論懇シンポジウム  2022年12月22日 

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    開催年月日: 2022年12月

    記述言語:日本語   会議種別:口頭発表(招待・特別)  

    開催地:コラッセ福島   国名:日本国  

  8. Cosmology Results from Subaru Hyper Suprime-Cam 招待有り 国際会議

    Hironao Miyatake

    New Frontiers in Cosmology with the Intrinsic Alignments of Galaxies  2022年12月6日 

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    開催年月日: 2022年12月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:YITP, Kyoto University   国名:日本国  

  9. First Identification of a CMB Lensing Signal Produced by 1.5 Million Galaxies at z~4 招待有り 国際会議

    Hironao Miyatake

    Kashiwa DM Symposium  2022年11月30日 

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    開催年月日: 2022年11月 - 2022年12月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Kavli IPMU, University of Tokyo   国名:日本国  

  10. 重力レンズで探る暗黒宇宙 招待有り

    宮武広直

    2022年度 物理学教室講演会  2022年11月28日 

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    開催年月日: 2022年11月

    記述言語:日本語   会議種別:口頭発表(基調)  

    開催地:名古屋大学   国名:日本国  

  11. Overview of ongoing and upcoming cosmological projects 国際会議

    Hironao Miyatake

    Machine Learning in Astrophysics Workshop  2022年11月21日 

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    開催年月日: 2022年11月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Nagoya University   国名:日本国  

  12. Constraining total neutrino mass through large scale structure measurements at high redshift 国際会議

    Hironao Miyatake

    Workshop on "Exploration of Particle Physics and Cosmology with Neutrino"  2022年11月2日 

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    開催年月日: 2022年11月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Kyoto University   国名:日本国  

  13. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data: the first application of emulator-based halo model to cosmology analysis 招待有り 国際会議

    Hironao Miyatake

    The 10th KIAS Workshop on Cosmology and Structure Formation  2022年10月24日 

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    開催年月日: 2022年10月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:KIAS   国名:大韓民国  

  14. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data: the first application of emulator-based halo model to cosmology analysis 招待有り 国際会議

    Hironao Miyatake

    The 10th KIAS Workshop on Cosmology and Structure Formation  2022年10月24日 

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    開催年月日: 2022年10月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:KIAS   国名:大韓民国  

  15. 宇宙論的観測の現状と将来 I -大規模構造- 招待有り

    宮武広直

    日本物理学会2022年秋季大会シンポジウム「高精度・大統計の宇宙論データで探る重力理論」  2022年9月10日 

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    開催年月日: 2022年9月

    会議種別:口頭発表(招待・特別)  

  16. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data: the first application of emulator-based halo model to cosmology analysis 招待有り 国際会議

    Hironao Miyatake

    Intriguing Inconsistencies in the Growth of Structure over Cosmic Time  2022年7月27日 

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    開催年月日: 2022年7月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Sexten Center for Astrophysics, Sesto   国名:イタリア共和国  

  17. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data: the first application of emulator-based halo model to cosmology analysis 招待有り 国際会議

    Hironao Miyatake

    Intriguing Inconsistencies in the Growth of Structure over Cosmic Time  2022年7月27日 

     詳細を見る

    開催年月日: 2022年7月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Sexten Center for Astrophysics, Sesto   国名:イタリア共和国  

  18. HSC shear 招待有り 国際会議

    Hironao Miyatake

    Key Challenges in Galaxy and CMB Lensing  2022年7月6日 

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    開催年月日: 2022年7月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Cambridge University   国名:グレートブリテン・北アイルランド連合王国(英国)  

  19. Weak Lensing Cosmology from Subaru Hyper Supreme-Cam Survey 招待有り

    Hironao Miyatake

    OUTAP colloquium  2022年6月15日 

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    開催年月日: 2022年6月

    記述言語:英語   会議種別:公開講演,セミナー,チュートリアル,講習,講義等  

    開催地:Osaka University   国名:日本国  

  20. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data 国際会議

    Hironao Miyatake

    Subaru Users Meeting  2021年1月13日 

     詳細を見る

    開催年月日: 2022年1月

    会議種別:口頭発表(一般)  

  21. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data 国際会議

    Hironao Miyatake

    Subaru Users Meeting  2021年1月13日 

     詳細を見る

    開催年月日: 2022年1月

    記述言語:英語   会議種別:口頭発表(一般)  

  22. すばるHSCとSDSSデータの銀河弱重力レンズとクラスタリングの小スケール信号を用いた宇宙論統合解析

    宮武広直

    第34回理論懇シンポジウム  2021年12月24日 

     詳細を見る

    開催年月日: 2021年12月

    会議種別:口頭発表(一般)  

    開催地:オンライン  

  23. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data: the first application of emulator-based halo model to cosmology analysis 招待有り 国際会議

    Hironao Miyatake

    Cambridge cosmology seminar  2021年12月6日 

     詳細を見る

    開催年月日: 2021年12月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Online  

  24. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data: the first application of emulator-based halo model to cosmology analysis 招待有り 国際会議

    Hironao Miyatake

    Cambridge cosmology seminar  2021年12月6日 

     詳細を見る

    開催年月日: 2021年12月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Online  

  25. すばるHSCとSDSSデータの銀河弱重力レンズとクラスタリングの小スケール信号を用いた宇宙論統合解析

    宮武広直

    観測的宇宙論ワークショップ  2021年11月18日 

     詳細を見る

    開催年月日: 2021年11月

    会議種別:口頭発表(一般)  

    開催地:オンライン  

  26. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data: the first application of emulator-based halo model to cosmology analysis 国際会議

    Hironao Miyatake

    DEBATING THE POTENTIAL OF MACHINE LEARNING IN ASTRONOMICAL SURVEYS  2021年10月21日 

     詳細を見る

    開催年月日: 2021年10月

    会議種別:口頭発表(一般)  

    開催地:Paris & Online   国名:フランス共和国  

  27. Cosmological constraints from galaxy-galaxy lensing and galaxy clustering with HSC-Y1 and BOSS data: the first application of emulator-based halo model to cosmology analysis

    Debating the Potential of Machine Learning in Astronomical Surveys  2021年10月21日 

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語   会議種別:口頭発表(一般)  

  28. 銀河撮像観測 招待有り

    宮武広直

    天文観測におけるビッグデータ解析と宇宙論パラメータの推定  2021年9月27日 

     詳細を見る

    開催年月日: 2021年9月

    会議種別:口頭発表(招待・特別)  

    開催地:オンライン  

  29. すばる HSC と SDSS データの銀河弱重力レンズとクラスタリングの小スケー ル信号を用いた宇宙論統合解析

    宮武広直

    日本天文学会2021年秋季年会  2021年9月15日 

     詳細を見る

    開催年月日: 2021年9月

    会議種別:口頭発表(一般)  

    開催地:オンライン  

  30. Overview of research activities at Nagoya/Kavli IPMU/Kyoto 招待有り 国際会議

    Hironao Miyatake

    International Symposium of JSPS Core-to-Core program “DMNet”  2021年3月25日 

     詳細を見る

    開催年月日: 2021年3月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

  31. Cosmological Constraints from Galaxy-galaxy Lensing and Clustering with the Subaru HSC and SDSS BOSS Data 国際会議

    Hironao Miyatake

    Subaru Users Meeting 

     詳細を見る

    開催年月日: 2021年3月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Online  

  32. Cosmological Constraints from Galaxy-galaxy Lensing and Clustering with the Subaru HSC and SDSS BOSS Data 国際会議

    Hironao Miyatake

    Subaru Users Meeting 

     詳細を見る

    開催年月日: 2021年3月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Online  

  33. CMB Lensing Measurement of Distant Galaxy Clusters and Galaxies Detected by the Subaru HSC

    宮武広直

    新学術領域「ニュートリノで拓く素粒子と宇宙」研究会 

     詳細を見る

    開催年月日: 2020年12月

    記述言語:英語   会議種別:口頭発表(一般)  

  34. CMB Lensing Measurement of Distant Galaxy Clusters and Galaxies Detected by the Subaru HSC

    2020年12月 

     詳細を見る

    開催年月日: 2020年12月

  35. 観測的宇宙論における 画像解析の課題

    宮武広直

    データ解析の新展開2020  2020年9月15日 

     詳細を見る

    開催年月日: 2020年9月

    記述言語:英語   会議種別:口頭発表(一般)  

  36. 観測的宇宙論における画像解析の課題

    宮武広直

    2020年度光赤天連シンポジウム「データ解析の新展開2020」  2020年9月 

     詳細を見る

    開催年月日: 2020年9月

  37. Overview of Imaging Surveys 招待有り

    宮武広直

    "Testing Gravity THxOBS Japan" kickoff meeting  2020年8月28日 

     詳細を見る

    開催年月日: 2020年8月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

  38. Overview of Imaging Surveys 招待有り

    2020年8月 

     詳細を見る

    開催年月日: 2020年8月

  39. 日本のWFIRST参加 招待有り

    宮武広直

    Euclid衛星とすばる望遠鏡とのシナジー 

     詳細を見る

    開催年月日: 2020年2月

    記述言語:日本語   会議種別:口頭発表(一般)  

    国名:日本国  

  40. Cosmological Constraints from Galaxy-galaxy Lensing and Clustering with the Subaru HSC and SDSS BOSS Data 国際会議

    Hironao Miyatake

    Cosmic acceleration 

     詳細を見る

    開催年月日: 2020年2月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:日本国  

  41. Weak Lensing Cosmology from Subaru Hyper Supreme-cam First Year Data 招待有り

    Hironao Miyatake

    6th Korea-Japan workshop on dark energy at KMI  2019年12月3日 

     詳細を見る

    開催年月日: 2019年12月

    記述言語:英語   会議種別:口頭発表(一般)  

  42. Cosmological Constraints from Galaxy-galaxy Lensing and Clustering with the Subaru HSC and SDSS BOSS Data 国際会議

    Hironao Miyatake

    Subaru Telescope 20th Anniversary 

     詳細を見る

    開催年月日: 2019年11月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:日本国  

  43. Weak Lensing Cosmology from the Subaru Hyper Suprime-Cam Survey First Year Data 招待有り

    宮武広直

    セミナー 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:千葉大学   国名:日本国  

  44. Weak Lensing Cosmology from the Subaru Hyper Suprime-Cam Survey First Year Data 招待有り

    宮武広直

    セミナー 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:千葉大学   国名:日本国  

  45. Weak Lensing Cosmology from the Subaru Hyper Suprime-Cam Survey First Year Data 招待有り

    宮武広直

    セミナー 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:千葉大学   国名:日本国  

  46. Weak Lensing Cosmology from the Subaru Hyper Suprime-Cam Survey First Year Data 招待有り

    宮武広直

    セミナー 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:日本語   会議種別:口頭発表(招待・特別)  

    開催地:京都大学   国名:日本国  

  47. Weak Lensing Cosmology from the Subaru Hyper Suprime-Cam Survey First Year Data 招待有り

    宮武広直

    セミナー 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:日本語   会議種別:口頭発表(招待・特別)  

    開催地:京都大学   国名:日本国  

  48. Weak Lensing Cosmology from the Subaru Hyper Suprime-Cam Survey First Year Data 招待有り

    宮武広直

    セミナー  2019年10月3日 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:日本語   会議種別:口頭発表(招待・特別)  

    開催地:京都大学   国名:日本国  

  49. Towards Total Neutrino Mass Constraints through Multi-Wavelength Gravitational Lensing Measurements

    宮武広直

    新学術領域「ニュートリノで拓く素粒子と宇宙」研究会 

     詳細を見る

    開催年月日: 2019年6月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:日本国  

  50. Cosmological constraints from galaxy-galaxy lensing and clustering with the Subaru HSC and SDSS BOSS data

    Hironao Miyatake

    LSST@ASIA 

     詳細を見る

    開催年月日: 2019年5月

    会議種別:口頭発表(一般)  

    開催地:University of New South Wales, Sydney, Australia   国名:オーストラリア連邦  

  51. Unveiling the Dark Sector of the Universe with Subaru Hyper Suprime-Cam, Future Perspective in Cosmology and Gravity 招待有り

    Hironao Miyatake

    Future Perspective in Cosmology and Gravity 

     詳細を見る

    開催年月日: 2019年4月

    会議種別:口頭発表(招待・特別)  

    開催地:Nagoya University, Nagoya   国名:日本国  

  52. Hyper Suprime-Cam Weak Lensing Measurement of Galaxy Clusters selected by Atacama Cosmology Telescope

    Hironao Miyatake

    Panchromatic Panoramic Studies of Galaxy Clusters: from HSC to PFS and ULTIMATE 

     詳細を見る

    開催年月日: 2019年3月

    会議種別:口頭発表(一般)  

    開催地:ASIAA, Taipei, Taiwan   国名:台湾  

  53. Cosmological constraints from galaxy-galaxy lensing and clustering with the Subaru HSC and SDSS BOSS data 国際会議

    Hironao Miyatake

    Accelerating Universe in the Dark  2019年3月 

     詳細を見る

    開催年月日: 2019年3月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Yukawa Institute, Kyoto, Japan  

  54. Cosmology Challenge Towards Robust Modeling of Galaxy-galaxy Lensing and Clustering Signals 招待有り 国際会議

    Hironao Miyatake

    Accurate lensing in the era of precision Cosmology, University of California  2019年1月 

     詳細を見る

    開催年月日: 2019年1月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:University of California, Berkeley, USA  

  55. Aging of the Universe 招待有り 国際会議

    Hironao Miyatake

    UBIAS Workshop  2018年12月 

     詳細を見る

    開催年月日: 2018年12月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Nagoya University, Nagoya  

  56. すばる望遠鏡Hyper Suprime-Camにおける弱重力レンズ効果の精密測定 国際会議

    宮武広直

    観測的宇宙論ワークショップ  2018年11月  山口大学、山口

     詳細を見る

    開催年月日: 2018年11月

    記述言語:英語   会議種別:口頭発表(一般)  

  57. すばる望遠鏡Hyper Suprime-Camで迫る宇宙の暗黒成分の謎 招待有り

    宮武広直

    談話会  2018年11月 

     詳細を見る

    開催年月日: 2018年11月

    記述言語:日本語   会議種別:口頭発表(招待・特別)  

    開催地:京都産業大学、京都  

  58. Baryonic Effects in Weak Lensing Measurements 国際会議

    Hironao Miyatake

    ICM Physics and Modelling  2018年10月 

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Max Planck Institute for Astrophysics, Garching, Germany  

  59. Photo-z Systematics in HSC Weak Lensing Measurements, Colours of the Universe 国際会議

    Hironao Miyatake

    Colours of the Universe  2018年9月 

     詳細を見る

    開催年月日: 2018年9月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Lorentz Center, Leiden, Netherland  

  60. Halo Bias as a Probe of Astrophysics and Systematics in Cosmological Constraints 招待有り

    宮武 広直

    ダークマターハロー研究会  2018年8月 

     詳細を見る

    開催年月日: 2018年8月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:国立天文台、東京  

  61. First-Year Cosmological Results From the Subaru Hyper Suprime-Cam Survey 国際会議

    Hironao Miyatake

    COSPAR2018 42nd assembly  2018年7月 

     詳細を見る

    開催年月日: 2018年7月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Pasadena Convention Center, Pasadena, California, USA  

  62. Subaru Hyper Suprime-Cam Weak Lensing Measurement of Galaxy Clusters Selected by Atacama Cosmology Telescope Polarimeter 国際会議

    Hironao Miyatake

    SUGAR-RUSH  2018年6月 

     詳細を見る

    開催年月日: 2018年6月

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Shanghai Jiao Tong University, Shanghai, China  

  63. Hyper Suprime-Cam Weak Lensing Measurement of Galaxy Clusters Selected by Atacama Cosmology Telescope Polarimeter 招待有り 国際会議

    Hironao Miyatake

    Stanford Cosmology Seminar  2018年3月 

     詳細を見る

    開催年月日: 2018年3月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Stanford University, Palo Alto, CA, USA  

  64. Hyper Suprime-Cam Weak Lensing Measurement of Galaxy Clusters Selected by Atacama Cosmology Telescope Polarimeter 招待有り

    Hironao Miyatake

    Brown Astrophysics Seminar Series 

     詳細を見る

    開催年月日: 2017年12月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Brown University, Providence, RI, USA   国名:アメリカ合衆国  

  65. Hyper Suprime-Cam Weak Lensing Measurement of Galaxy Clusters Selected by Atacama Cosmology Telescope Polarimeter 招待有り 国際会議

    Hironao Miyatake

    Galaxies & Cosmology Seminar  2017年12月 

     詳細を見る

    開催年月日: 2017年12月

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Harvard University, Cambridge, MA, USA   国名:アメリカ合衆国  

  66. HSC Weak Lensing Measurement of ACTPol SZ-selected Galaxy Clusters, American Astronomical Society

    Hironao Miyatake

    American Astronomical Society 

     詳細を見る

    開催年月日: 2017年1月

    会議種別:口頭発表(一般)  

    開催地:Grapevine, TX, USA   国名:アメリカ合衆国  

  67. Cosmological constraints from galaxy-galaxy lensing and clustering with the Subaru HSC and SDSS BOSS data 国際会議

    Hironao Miyatake

    LSST@ASIA  2019年5月 

     詳細を見る

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:University of New South Wales, Sydney, Australia  

  68. HSC Weak Lensing Measurement of ACTPol SZ-selected Galaxy Clusters, American Astronomical Society 国際会議

    Hironao Miyatake

    American Astronomical Society  2017年1月 

     詳細を見る

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:Grapevine, TX, USA  

  69. Unveiling the Dark Sector of the Universe with Subaru Hyper Suprime-Cam, Future Perspective in Cosmology and Gravity 招待有り 国際会議

    Hironao Miyatake

    Future Perspective in Cosmology and Gravity  2019年4月 

     詳細を見る

    記述言語:英語   会議種別:口頭発表(招待・特別)  

    開催地:Nagoya University, Nagoya  

  70. Hyper Suprime-Cam Weak Lensing Measurement of Galaxy Clusters selected by Atacama Cosmology Telescope 国際会議

    Hironao Miyatake

    Panchromatic Panoramic Studies of Galaxy Clusters: from HSC to PFS and ULTIMATE  2019年3月 

     詳細を見る

    記述言語:英語   会議種別:口頭発表(一般)  

    開催地:ASIAA, Taipei, Taiwan  

▼全件表示

科研費 15

  1. 超大規模撮像銀河サーベイ群を用いた標準宇宙論の徹底検証

    研究課題/研究課題番号:23H00108  2023年4月 - 2028年3月

    科学研究費助成事業  基盤研究(A)

    宮武 広直, 西澤 淳, 横山 修一郎

      詳細を見る

    担当区分:研究代表者 

    配分額:46410000円 ( 直接経費:35700000円 、 間接経費:10710000円 )

    観測技術の飛躍的な向上によりΛCDM標準模型が確立された。本模型によると宇宙のエネルギー密度の95%が未知の暗黒成分で構成されている。宇宙の暗黒成分は現代物理学の根幹である素粒子標準模型や一般相対性理論で説明できないものであるため、その正体の解明は現代物理学におけるパラダイムシフトを引き起こす可能性がある。本研究では、すばる望遠鏡、2020年代に新たに始まるLSST、Euclid宇宙望遠鏡、Roman宇宙望遠鏡による超大規模撮像銀河サーベイを用いて宇宙構造の進化を精密測定することでΛCDM標準模型を徹底検証するとともにΛCDM標準模型を超えた物理の探索を行う。

  2. すばる望遠鏡HSCの最終データを用いた宇宙の加速膨張の起源の解明

    研究課題/研究課題番号:20H01932  2020年4月 - 2024年3月

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    宮武 広直, 西澤 淳, 横山 修一郎

      詳細を見る

    担当区分:研究代表者 

    配分額:17550000円 ( 直接経費:13500000円 、 間接経費:4050000円 )

    宇宙の加速膨張は現代物理学における最大の謎の一つである。加速膨張は未知の暗黒エネルギーによって引き起こされているとする一方で、アインシュタインの一般相対性理論の修正が必要だとする指摘もある。本研究では、すばる望遠鏡Hyper Suprime-Cam(HSC)による広視野深宇宙撮像銀河サーベイの最終年度のデータを用いて弱重力レンズ効果を測定することで、世界最高精度で宇宙の加速膨張の性質を測定し、暗黒エネルギーの性質及び修正重力理論の兆候に制限を課すことを目指す。そのために、機械学習を用いて観測的系統誤差を低減し、修正重力理論を考慮に入れた弱重力レンズ観測量のモデルを構築する。
    今年度はすばる望遠鏡HSCによる銀河サーベイ初年度のデータ(全体のデータの約10分の1)を用いた宇宙論解析、特にSDSS/BOSSの分光銀河サンプルとHSCのデータを組み合わせた銀河クラスタリング信号と銀河弱重力レンズ信号を用いた解析を行い、論文として発表した。本解析は、機械学習を用いた構築された宇宙論エミュレータと呼ばれる小スケール領域の信号を高速に計算するツールを用い、かつ銀河形成の物理の不定性は周辺化した初めての解析である。その結果、宇宙構造の凸凹の程度を表すパラメータS8が宇宙マイクロ波背景放射の測定から予言されるS8に比べて小さいことがわかった。この傾向は他の独立な銀河サーベイ(米国のDES、欧州のKiDS)と同じであり、標準宇宙論の破れが起こっている可能性が示唆されている。この成果は世界中で注目され、その結果5件の国際学会における招待講演、4件の国内学会における招待講演を行った。並行して、昨年度に作成したHSCによる銀河サーベイ3年目までのデータ(全体のデータの約半分)の銀河形状カタログを用いた解析を行った。この解析では銀河クラスタリング信号と銀河弱重力レンズ信号に宇宙論的弱重力レンズ信号を加え、HSCで観測された赤方偏移の系統誤差を保守的に扱うことによって、よりロバストなS8の測定を行った。この成果は2023年度初めに公開される予定である。
    また、ブレンド画像の同定に関しては、ハッブル宇宙望遠鏡で観測された画像を用いてHSCでブレンドされた画像を作成し、それらを教師データとして学習させることで、従来の手法に比べて、圧倒的にブレンド画像の同定を改善する手法を開発した。本成果は2023年度に論文として発表する予定である。
    令和4年度が最終年度であるため、記入しない。
    令和4年度が最終年度であるため、記入しない。

  3. Dark and Baryon Emulator (DaBE)の開発にむけた準備研究

    2023年10月 - 2024年3月

    国立研究開発法人科学技術振興機構  世界で活躍できる研究者戦略育成事業 シーズ共同研究費 

    白崎正人, 西澤淳, 新谷正嶺

  4. Testing Standard Cosmological Model with Distant Cosmic Structure

    2023年6月 - 2024年3月

    国立大学法人東海国立大学機構  Nagoya University Global Multi-Campus Seed Funding Grants

  5. アセンブリ・バイアス入りの宇宙論エミュレータの開発とΛCDM標準宇宙論の徹底検証

    研究課題/研究課題番号:23H04005  2023年4月 - 2025年3月

    科学研究費助成事業  学術変革領域研究(A)

    宮武 広直

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    担当区分:研究代表者 

    配分額:6110000円 ( 直接経費:4700000円 、 間接経費:1410000円 )

    宇宙観測技術の飛躍的な向上によりΛCDM宇宙論が確立された。ところが2010年代半ば以降、宇宙構造の凸凹の程度を表すS_8などの宇宙論パラメータにおいて、初期宇宙と後期宇宙の観測量を用いた測定値の間に違いが見え始めてきた。これはΛCDM宇宙論の綻びである可能性がある。本研究では、後期宇宙の構造形成の測定から得られるS_8の精密測定を可能にするため、機械学習に基づいた理論モデル(エミュレータ)の中で最も大きな系統誤差と考えられているアセンブリ・バイアスによる効果をエミュレータに組み込む。このエミュレータを用いて、すばる望遠鏡HSCを用いた宇宙論解析などを行い、ΛCDM宇宙論の徹底検証を行う。

  6. 宇宙における天体と構造の形成史の統一的理解

    研究課題/研究課題番号:22K21349  2022年12月 - 2029年3月

    日本学術振興会  科学研究費助成事業  国際共同研究加速基金(国際先導研究)

    宮崎 聡, 栗田 光樹夫, 宮武 広直, 小山 佑世, 長峯 健太郎, 美濃和 陽典, 大栗 真宗, 西澤 淳, 児玉 忠恭, 本原 顕太郎, 播金 優一

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    担当区分:研究分担者 

    本事業では、宇宙の最初に誕生した星を、世界最高精度の望遠鏡を駆使して探査し、その後どのような過程を経て、我々が住む銀河系や銀河団が誕生したのかを多角的にアプローチする。日本が持つ高い技術開発力と、すばる望遠鏡のユニークなデータセットを武器に、これから主導を取る海外の巨大望遠鏡を利用した国際共同研究に参画し、その中で日本の若手研究者を中堅的な役割を果たせるよう育成していく。
    若手育成においては我々が独自に考案した持続可能な育成プログラム(M3eX)により、日本の天文学コミュニティ全体に波及させる。また渡航先も拡大させ、定期的な研究会を開催することで、日本の当該分野におけるプレゼンスを高める。
    本研究の目的は、宇宙の最初期に誕生した星がやがて銀河を形成し、その中でどのように大質量ブラックホールが形成され、やがて銀河団へと成長してきたのか、という宇宙の様々な時代における構造の形成史について、最新の観測機器を用いて統一的・連続的に理解することにある。我が国の研究者はこれまでに主としてすばる望遠鏡の観測装置を用い、世界の一線級の成果をあげてきているが、本研究の目標を達成するにはすばる望遠鏡だけでは不十分である。そこで、国立天文台・名古屋大学・千葉大学・大阪大学・京都大学・東北大学に所属する、理論・観測・実験という幅広い分野にまたがる研究者組織を構築した。そして、米アリゾナ大学、米プリンストン大学、伊国立天文学研究所、豪国立大学等の研究者と共同研究を推進することで合意した。JWST、Rubin、Roman, ELT等の世界最高峰の次世代観測装置を使って研究している、あるいは新装置を開発中の研究機関に若手研究者を送り込み、我が国の国際化を図るとともに、光赤外線天文学分野における世界のトップランナーの地位を次の時代においても堅持することを目標としている。当分野の院生の長期海外渡航経験率は現状では10%程度であるが、これを本課題研究完了時までに50%に引き上げることを目標とし、更にプログラム終了後も若手研究者によるセルフメンター制を構築することで、持続可能な国際化の潮流を作ることを目指す。
    2023年1月に当科研費の採択を受けて本共同研究が発足した。これまでに月例の共同研究会議を開催し、研究方針・スケジュールの確認等を行ってきた。また、2023年5月31日、6月1、2日に国立天文台(三鷹)において、国内外の共同研究者を招いて、「国際先導研究Kickoff Meeting」を開催すべく、準備を進めてきている。2022年度内に4名の大学院生・ポスドクが、米アリゾナ大学、米プリンストン大学、米カリフォルニア工科大学、米カリフォルニア大学に、総計112日滞在し、共同研究を行った。
    申請書に記載した研究計画に沿って。海外研究機関に拠点を構築し、着実に共同研究を進める予定である。

  7. 次世代大規模銀河サーベイによる精密銀河団宇宙論

    2022年1月 - 2026年3月

    国立研究開発法人科学技術振興機構  世界で活躍できる研究者戦略育成事業 テーラーメード型研究費 

    宮武 広直

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    担当区分:研究代表者  資金種別:競争的資金

    配分額:4700000円 ( 直接経費:4700000円 )

  8. 多波長データと弱重力レンズによるアセンブリバイアスとスプラッシュバック半径の研究

    研究課題/研究課題番号:21H05456  2021年9月 - 2023年3月

    日本学術振興会  科学研究費助成事業  学術変革領域研究(A)

    宮武 広直

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    担当区分:研究代表者 

    配分額:5070000円 ( 直接経費:3900000円 、 間接経費:1170000円 )

    (質量以外の)銀河団内部の性質と周辺環境との相関(アセンブリ・バイアス)は現在の標準宇宙論であるΛCDM模型で予言されているが、未だ検出されていない。本研究では、可視光及び近赤外、X線、マイクロ波といった多波長データを組み合わせ、さらにすばる望遠鏡Hyper Suprime-Cam(HSC)サーベイのデータを用いて銀河団の弱重力レンズ効果を測定することで、高確度でアセンブリ・バイアスを検出することを目指す。また、銀河団の物理的半径であるスプラッシュバック半径とアセンブリ・バイアスの関係を調べるとともに、スプラッシュバック半径の大きさから暗黒物質の性質に制限を付けることを目指す。
    アセンブリ・バイアスは銀河団内部の質量以外の性質と銀河団の周辺環境の相関のことである。15年程度前にN体シミュレーションを用いた理論的研究で銀河団の形成時刻と周辺環境の相関などが存在することが指摘されてきたが、観測的な検出が試みられ始めたのはここ5年程度である。
    本年度は以下に述べるアセンプリ・バイアスの観測的研究を進めた。まず、SDSSで検出されたz<0.12の約600個の銀河団を、実際に観測された宇宙の大規模構造を再現するN体シミュレーション(Elucidシミュレーション; Wang H. et al., 2014, ApJ, 794, 94)で記録されている銀河団の形成時刻で銀河団サンプルを分けた。それぞれのサンプルで銀河団と銀河の相互相関を取ることで、大スケールに現れるバイアスの大きさを測定するとともに、弱重力レンズ効果を用いて銀河団の質量を測定し、銀河団の質量に依存するバイアス成分を取り除き、アセンブリ・バイアスを取り出すことを試みた。その結果、銀河団の現在の質量の20%に達する時刻でサンプルを分けた場合、サブサンプル間のバイアスの大きさの違いを6sigmaで検出した。これは、観測的に銀河団の形成時刻を推定するのが困難な状況の中、実際の大規模構造を再現するN体シミュレーションを用いることでアセンブリ・バイアスを検出しようというユニークな研究である。この結果は論文としてまとめ(arXiv:2202.01795)、現在査読中である。
    また、スプラッシュバック半径に関しては、eROSITAサーベイで得られたX線銀河団サンプルとHSCで観測された銀河の銀河団-銀河相互相関関数を測定することでX線輝度とスプラッシュバック半径の大きさの相関を調べる研究をIUCAAのSurhud More氏と開始した。
    アセンブリ・バイアスの研究が論文としてまとまり、スプラッシュバック半径に関する研究もスムーズに開始することができたため。
    今回はN体シミュレーションを利用してアセンブリ・バイアスの検出を試みたが、来年度はX線やマイクロ波といった多波長のデータを組み合わせてサブサンプルを作成し、アセンブリ・バイアスを検出することを試みる。また、スプラッシュバック半径の測定を完了し、その理論解釈を行う。

  9. 多波長観測による高赤方偏移の宇宙大規模構造の測定とニュートリノ質量和の制限

    研究課題/研究課題番号:21H00070  2021年4月 - 2023年3月

    日本学術振興会  科学研究費助成事業  新学術領域研究(研究領域提案型)

    宮武 広直

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    担当区分:研究代表者 

    配分額:4680000円 ( 直接経費:3600000円 、 間接経費:1080000円 )

    本研究では、最新の多波長データ、特にすばる望遠鏡Hyper Suprime-Cam (HSC)と高感度・高角度分解能マイクロ波望遠鏡Advanced Atacama Cosmology Telescope Polarimeter (AdvACT)を用い、高赤方偏移の銀河及び銀河団の重力レンズ効果を測定することによって、世界で初めて高赤方偏移領域における宇宙の大規模構造からニュートリノ質量和を始めとする宇宙論パラメータに制限を付ける。
    昨年度まで行ったすばる望遠鏡Hyper Suprime-Cam(HSC)で検出されたz~4の大規模超遠方銀河サンプル(ライマンブレイク銀河)のPlanck衛星のデータを用いたCMB重力レンズ効果測定及びライマンブレイク銀河のCMB重力レンズ効果と空間クラスタリングを組み合わせた宇宙論パラメータの制限に関する論文が受理され、Physical Review Letters(PRL)誌に掲載された。この成果はPRLのEditors’ Suggestionに選ばれ、さらにアメリカ物理学会(APS)が出版するPhysics MagazineのViewpointに選ばれた。Editors’ SuggestionはPRLで受理された論文のうち14%であり、Viewpointに選ばれる論文はAPSが出版する全ての論文誌に掲載される論文のうちの0.6%である。また、論文のインパクトを評価するウェブサイトAlmetricによると、この論文の注目度はPRLから出版された論文の中でトップ0.1%に入っている。また、本成果に関するプレスリリースを行い、世界中の87のニュースサイトに、日本では12紙の新聞に掲載された。さらに、本研究をもとにした研究提案は科学技術振興機構創発的研究支援事業に採択された。また、この論文に関連して1件の国際学会における招待講演を行った。本年度はこの研究をさらに推進し、HSCの最新のデータを用いた大規模超遠方銀河サンプルの作成、CMB重力レンズ効果の系統誤差の測定と銀河空間クラスタリングの測定に必要なHSC サーベイのランダム点の精緻化、Planck衛星の5倍程度の感度を持つAdvACTを用いたCMB重力レンズ効果の測定などを推進した。これらの研究は創発的研究支援事業に発展的に引き継がれ、ニュートリノ質量をはじめとする宇宙論パラメータの制限を引き続き行う。
    令和4年度が最終年度であるため、記入しない。
    令和4年度が最終年度であるため、記入しない。

  10. すばる精密宇宙論によるダークマター、ダークエネルギーおよび背景重力波の究明

    研究課題/研究課題番号:19H00677  2019年4月 - 2024年3月

    日本学術振興会  科学研究費助成事業  基盤研究(A)

    高田昌広

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    担当区分:研究分担者  資金種別:競争的資金

  11. 多波長データにおける銀河団重力レンズ効果を用いたニュートリノ質量和の制限

    研究課題/研究課題番号:19H05100  2019年4月 - 2021年3月

    日本学術振興会  科学研究費助成事業  新学術領域研究(研究領域提案型)

    宮武 広直

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    担当区分:研究代表者 

    配分額:2080000円 ( 直接経費:1600000円 、 間接経費:480000円 )

    本研究では、すばる望遠鏡の新広視野主焦点カメラHyper Suprime-Cam (HSC)で取得した光赤外波長域のデータと、Advanced Atacama Cosmology Telescope (AdvACT)で取得した宇宙マイクロ波背景放射のデータを組み合わせることにより、近傍から遠方までの銀河団の質量を正確に測定し、各質量・各赤方偏移における銀河団の個数を数え上げることによって、ニュートリノ全質量に制限を付けることを目指す。本研究は、観測的宇宙論と素粒子物理学を、観測・実験の観点から融合させる先駆的研究である。
    すばる望遠鏡Hyper Suprime-Cam(HSC)で検出された高赤方偏移の銀河団サンプルによる重力レンズ効果をAdvanced Atacama Cosmology Telescope (AdvACT)で観測された宇宙マイクロ波背景放射のデータを背景光として測定した。z~1の高赤方偏移銀河団サンプルにおいても有意な信号が測定され、その信号から銀河団サンプルの質量を推定した。さらに、銀河団をメンバー銀河の個数でサブサンプルに分け、それぞれのサブサンプルで質量を測定することで、メンバー銀河の個数-銀河団質量の関係を導出した。これは、銀河を光源として用いた重力レンズ測定による結果(Murata et al., 2019, PASJ, 71, 107)と整合的であった。この成果は研究室の大学院生の修士論文として発表し、投稿論文を執筆中である。
    加えて、HSCで検出されたz~4の約150万個の遠方銀河サンプルによるCMB重力レンズ効果をPlanck衛星のデータを用いて、昨年度測定した信号の解釈を進めるため、遠方銀河サンプルに混入している近傍銀河による重力レンズ信号、宇宙赤外背景放射などの系統誤差を評価・補正した上で、この銀河サンプルの質量を得た。その質量は、この銀河サンプルのクラスタリング信号による推定(Harikane et al., 2018, PASJ, 70, S11)と無矛盾であった。さらにこのクラスタリング信号と重力レンズ信号を組み合わせることで、世界で初めてz~4の大規模構造を用いた宇宙論パラメータ、具体的には宇宙の物質のエネルギー密度Omega_mと宇宙構造の凸凹の程度sigma_8の制限を得た。この結果を論文にまとめて投稿した。
    令和2年度が最終年度であるため、記入しない。
    令和2年度が最終年度であるため、記入しない。

  12. 遠方銀河団の質量関数による宇宙の加速膨張の性質とニュートリノ全質量の制限

    研究課題/研究課題番号:18K13561  2018年4月 - 2021年3月

    若手研究

    宮武 広直

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    担当区分:研究代表者 

    配分額:4160000円 ( 直接経費:3200000円 、 間接経費:960000円 )

    本研究の目的は以下の通りである。まず、すばる望遠鏡Hyper Suprime-Camによる可視光撮像銀河サーベイデータに、近赤外撮像データを加えることによって、高赤方偏移の銀河団を同定する。この銀河団サンプルの単位質量あたり・単位体積あたりの個数と弱重力レンズ効果を用いて測定した銀河団質量を用い、ニュートリノ全質量和を制限することである。前年度は、HSCのCOSMOS領域において、Spitzer望遠鏡IRACによる赤外撮像データを組み合わせた解析を行なった。HSCの他の領域に重なるIRACのデータは、COSMOS領域のデータに比べて浅いため、今年度はそれによる測光的赤方偏移への影響を調べ、COSMOS領域以外でも十分に測光的赤方偏移を改善することがわかった。本データ解析遂行のために、大学院生をSpirzerのデータ解析の専門家がいるカリフォルニア工科大学に派遣するなど活発な研究活動を行なった。また、HSCの観測領域と重複するVIKINGサーベイの近赤外データでも測光的赤方偏移が改善するかどうかを調べたが、VIKINGのデータがHSCに比べて相対的に浅いため、残念ながら改善は見られなかった。今後は、2019年前半までのデータを用いて解析されたHSCサーベイデータとIRACの複数のサーベイのデータを組み合わせ、改善した測光的赤方偏移に基づいて高赤方偏移カタログを作成し、先に述べた方法に従ってニュートリノ全質量和を制限する。本若手研究は重複制限により今年度で終了となるが、今後の研究は新たに獲得した基盤(B)に発展的に引き継がれる。

  13. すばる超広視野銀河サーベイの弱重力レンズ効果精密測定で探る宇宙の加速膨張の起源

    研究課題/研究課題番号:18H04350  2018年4月 - 2020年3月

    新学術領域研究(研究領域提案型)

    宮武 広直

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    担当区分:研究代表者 

    配分額:10400000円 ( 直接経費:8000000円 、 間接経費:2400000円 )

    本研究の目的は、すばる望遠鏡新超広視野主焦点カメラHyper Suprime-Cam (HSC)によるすばる望遠鏡戦略枠サーベイのデータを用いた弱重力レンズ効果の測定を通して、世界最高精度で宇宙の加速膨張の性質に制限を付けることである。本年度は、昨年度に引き続き、Sloan Digital Sky Survey (SDSS) III / Baryon Oscillation Spectroscopic Survey (BOSS)の分光銀河カタログとHSCサーベイ初年度の銀河形状カタログを組み合わせることで、銀河自己相関関数と銀河弱重力レンズ効果を測定することで、宇宙論パラメータに制限を付けるための研究を主に行なった。モック信号を用いて高精度で宇宙論情報を引き出すための理論モデルを構築し、実際のデータを用いて、Dark Energy Surgey (DES), Kilo Degree Survey (KiDS)などの世界の他の競合するサーベイと同等もしくはそれ以上の精度で宇宙論を制限することが可能となった。本解析はブラインド解析を行っており、さらなる系統誤差のテストの後、次年度始めにはブラインドを取り去り、論文を執筆する予定である。
    HSCサーベイ初年度の銀河形状カタログを用いた他の解析としては、高感度・高角度分解能マイクロ波望遠鏡PolarBearで測定された重力レンズ効果とHSCで測定された重力レンズ効果の相互相関を測定する研究を行った。
    昨年度から行ってきた、HSCサーベイ3年目まで銀河形状カタログの作成は、画像解析に問題が見つかったため、サーベイ4年目までのデータを用いた新しい画像解析に基づいた作成を行った。系統誤差のテストはほぼ完了し、来年度始めには画像シミュレーションを用いた銀河形状の補正係数を求め、銀河形状カタログが完成する予定である。
    令和元年度が最終年度であるため、記入しない。
    令和元年度が最終年度であるため、記入しない。

  14. 銀河団の質量関数と弱重力レンズ効果で探る宇宙の加速膨張の起源

    研究課題/研究課題番号:17H06600  2017年8月 - 2019年3月

    日本学術振興会  科学研究費助成事業  研究活動スタート支援

    宮武 広直

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    担当区分:研究代表者 

    配分額:2730000円 ( 直接経費:2100000円 、 間接経費:630000円 )

    本年度は、Atacama Cosmology Telescope Polarimeter (ACTPol)が2014年までに取得したデータに基づき、Sunyaev-Zel’dovich (SZ)効果で発見された銀河団のカタログと、すばる望遠鏡Hyper Suprime-Cam(HSC)が2016年までに取得したデータの銀河形状カタログを用いて、銀河団の弱重力レンズ効果の測定を行い、銀河団質量の推定を行った。まず、HSCの銀河形状の系統誤差を精密に評価し、銀河形状カタログを作成した。このカタログはHSCコラボレーション内で広く使われている。宇宙論的な物質の密度揺らぎや各銀河団の個性を考慮に入れた統計誤差を正確にモデル化し、測光的赤方偏移の誤った評価によって引き起こされる系統誤差の評価などを行った。また、測定データをフィットする際に用いる理論モデルとして、ACTPolのSZ銀河団の選択関数や、SZ信号に基づいて推定された質量と弱重力レンズ効果によって測定された真の質量との関係などを組み込んだ理論モデルを構築した。この時に用いる物質分布のプロファイルとして、Navarro-Frenk-White(NFW)プロファイルやバリオン入りのN体シミュレーションに基づいたプロファイルを用いて、理論モデルの不定性を調べる研究を行った。このモデルを測定データにフィットする事により、SZ銀河団質量と真の銀河団質量の間には有意な違いがあり、それは先行研究と整合的であることを示した。重複制限により、本年度が最終年度となったが、以上の研究を通して、本研究の目的であるHSCとACTを用いた銀河団質量関数による宇宙論の制限に必要なツールはほぼ準備できたと言える。
    29年度が最終年度であるため、記入しない。
    29年度が最終年度であるため、記入しない。

  15. 次世代大規模銀河サーベイにおける弱重力レンズ効果測定を通した暗黒エネルギーの研究

    研究課題/研究課題番号:14J11501  2014年4月 - 2016年3月

    日本学術振興会  科学研究費助成事業 特別研究員奨励費  特別研究員奨励費

    宮武 広直

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    2014年3月から、すばる望遠鏡超広視野主焦点カメラHyper Suprime-Cam(HSC)による大規模銀河サーベイが始まった。昨年度に引き続き高精度弱重力レンズ効果測定法の開発を進めた。具体的には、銀河の周りの弱重力レンズ信号を計算し、過去の観測の結果と一致することを確かめるなどの研究を行った。
    <BR>
    HSCサーベイとAtacama Cosmology Telecsope(ACT)サーベイのデータを組み合わせて、銀河団計数から宇宙論パラメータを制限する研究の準備として、Canada-France-Hawaii-Telecope CS82サーベイとACTサーベイを組み合わせ、弱重力レンズ効果を用いて銀河団の質量を較正する研究を行った。
    <BR>
    今年度は新たに銀河団のアセンブリ・バイアスの研究を行った。銀河・銀河団は暗黒物質の分布のうち、重力崩壊によって形成されたハローの中に棲んでいる。よって銀河・銀河団の分布は暗黒物質の分布をバイアスして反映している。両者の分布の関係は、従来はハローの質量のみに依存すると考えられてきたが、理論的もしくは数値的な研究によってハローの他の性質にも依存することが指摘されてきた。これをアセンブリ・バイアスという。今回の研究では、Sloan Digital Sky Surveyの銀河団サンプルを、メンバー銀河の中心集中度によって2つのサンプルに分け、銀河団の弱重力レンズ効果と2点相関関数を組み合わせることで、アセンブリ・バイアスを世界で初めて検出した。アセンブリ・バイアスは将来の精密宇宙論の測定において系統誤差となると指摘されており、本研究でアセンブリ・バイアスの理解の第一歩を踏み出したことは大きな意義がある。本研究成果はPhysical Leview Lettersに掲載され、注目論文に選ばれた。

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社会貢献活動 6

  1. 宇宙の暗黒成分の謎に迫る

    役割:講師

    名古屋大学大学院教育発達科学研究科附属 高大接続研究センター  2023年度 学びの杜・学術コース  2023年8月

  2. 宇宙の暗黒成分のはなし

    役割:出演

    名古屋大学  名古屋大学オープンレクチャー2023  2023年3月

  3. 宇宙の暗黒成分のはなし

    役割:出演

    名古屋大学  名古屋大学オープンレクチャー2023  2023年3月

  4. 大規模観測で迫る宇宙の暗黒成分の謎

    役割:出演

    名古屋市立菊里高等学校  進路探求特別講座(名古屋大学)  2022年11月

  5. 大規模観測で迫る宇宙の暗黒成分の謎

    役割:出演

    名古屋市立菊里高等学校  進路探求特別講座(名古屋大学)  2022年11月

  6. 国際ビッグプロジェクトで挑むダークエネルギーの謎

    役割:出演

    公開セミナー「天文学の最前線」2018  2018年8月

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メディア報道 26

  1. 初期銀河とり巻く “宇宙進化の黒幕” 新聞・雑誌

    しんぶん赤旗  2022年11月

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    執筆者:本人以外 

  2. 初期銀河とり巻く “宇宙進化の黒幕” 新聞・雑誌

    しんぶん赤旗  2022年11月

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    執筆者:本人以外 

  3. 謎の物質ダークマター テレビ・ラジオ番組

    NHK  NHK コズミックフロントΩ  2022年9月

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  4. 謎の物質ダークマター テレビ・ラジオ番組

    NHK  NHK コズミックフロントΩ  2022年9月

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  5. 最も遠い暗黒物質検出 新聞・雑誌

    北海道新聞  2022年8月

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  6. 最も遠い暗黒物質検出 新聞・雑誌

    宮崎日日新聞  2022年8月

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  7. 最も遠い暗黒物質検出 新聞・雑誌

    大分合同新聞  2022年8月

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  8. 最も遠い暗黒物質検出 新聞・雑誌

    西日本新聞  2022年8月

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  9. 最も遠い暗黒物質検出 新聞・雑誌

    高知新聞  2022年8月

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  10. 最も遠い暗黒物質検出 新聞・雑誌

    山陽新聞  2022年8月

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  11. 最も遠い暗黒物質検出 新聞・雑誌

    福井新聞  2022年8月

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  12. 最も遠い暗黒物質検出 新聞・雑誌

    北日本新聞  2022年8月

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  13. 最も遠い暗黒物質検出 新聞・雑誌

    岐阜新聞  2022年8月

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  14. 最も遠い暗黒物質検出 新聞・雑誌

    信濃毎日新聞  2022年8月

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  15. 最も遠い暗黒物質検出 新聞・雑誌

    茨城新聞  2022年8月

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  16. 最も遠い暗黒物質検出 新聞・雑誌

    岩手日報  2022年8月

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  17. 最も遠い暗黒物質検出 約120億光年、名古屋大など 新聞・雑誌

    共同通信  2022年8月

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  18. 120億光年離れた暗黒物質検出 最も遠い例に 名古屋大など 新聞・雑誌

    毎日新聞  2022年8月

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  19. 120億光年離れた暗黒物質検出 最も遠い例に 名古屋大など 新聞・雑誌

    毎日新聞  2022年8月

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  20. 最も遠い暗黒物質検出 約120億光年、名古屋大など 新聞・雑誌

    共同通信  2022年8月

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  21. 宇宙背景放射を使って遠方銀河周辺のダークマターを検出 インターネットメディア

    AstroArts  2022年8月

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  22. 宇宙背景放射を使って遠方銀河周辺のダークマターを検出 インターネットメディア

    AstroArts  2022年8月

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  23. 約120億年前の遠方銀河周辺に存在す るダークマター、名大などが検出に成功 インターネットメディア

    マイナビニュース  2022年8月

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  24. 約120億年前の遠方銀河周辺に存在す るダークマター、名大などが検出に成功 インターネットメディア

    マイナビニュース  2022年8月

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  25. Dark Matter Mapped Around Distant Galaxies インターネットメディア

    American Physical Society  Physics Viewpoint  2022年8月

  26. Dark Matter Mapped Around Distant Galaxies インターネットメディア

    American Physical Society  Physics Viewpoint  2022年8月

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