研究者詳細 - 小林　浩

論文 - 小林　浩

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Formation of Giant Planets 招待有り査読有り Open Access

Masahiro Ikoma and Hiroshi Kobayashi

Annual Review of Astronomy and Astrophysics 63 巻頁： 217 - 258 2025年8月

Rapid Formation of Gas-giant Planets via Collisional Coagulation from Dust Grains to Planetary Cores 査読有り Open Access

Kobayashi, Hiroshi; Tanaka, Hidekazu

ASTROPHYSICAL JOURNAL 922 巻頁： id. 16 2021年11月

Modeling of Collisional Outcomes Based on Impact Simulations of Mars-sized Bodies 査読有り Open Access

Hiroshi Kobayashi, Hidekazu Tanaka, Yukihiko Hasegawa, and Shu-ichiro Inutsuka

Astrophysical Journal 998 巻 ( 1 ) 頁： 89 2026年2月

Systematic determination of dust properties for a sample of 133 spatially resolved debris discs 査読有り国際共著 Open Access

J. P. Marshall, S. Hengst, R. Young , F. Kemper, L. Matrà, N. Pawellek, H. Kobayashi, P. Scicluna, S. T. Zeegers

Monthly Notices of the Royal Astronomical Society 545 巻 ( 4 ) 頁： staf2221 2026年2月

Modeling Atmospheric Alteration on Titan: Hydrodynamics and Shock-induced Chemistry of Meteoroid Entry 査読有り国際共著 Open Access

Ryushi Miyayama, Laura Kay Schaefer, Hiroshi Kobayashi, and Andrea Zorzi

Astrophysical Journal 989 巻 ( 2 ) 頁： 210 2025年8月

Formation of planetary atmospheres. Analytical estimation of vapor production via planetary impacts 査読有り Open Access

Miyayama, Ryushi; Kobayashi, Hiroshi

Astronomy & Astrophysics 688 巻頁： A103 2024年8月

Frequencies of Warm Debris Disks Based on Point Source Catalogs of Spitzer, WISE, and Gaia 査読有り Open Access

Mizuki, Toshiyuki; Momose, Munetake; Aizawa, Masataka; Kobayashi, Hiroshi

The Astronomical Journal 167 巻 ( 6 ) 頁： 275 2024年6月

Sticking of Fine Particles in High-velocity Impact: Application to Size Distribution of Dust Grains in a Debris Disk 査読有り

Kadono, T; Kobayashi, H; Yokoyama, M

ASTROPHYSICAL JOURNAL 960 巻 ( 1 ) 2024年1月

A Primordial Origin for the Gas-rich Debris Disks around Intermediate-mass Stars 査読有り国際共著 Open Access

Nakatani, R; Turner, NJ; Hasegawa, Y; Cataldi, G; Aikawa, Y; Marino, S; Kobayashi, H

959 巻 ( 2 ) 2023年12月

Rapid Formation of Gas-giant Planets via Collisional Coagulation from Dust Grains to Planetary Cores. II. Dependence on Pebble Bulk Density and Disk Temperature Open Access

Kobayashi, H; Tanaka, H

ASTROPHYSICAL JOURNAL 954 巻 ( 2 ) 2023年9月

Dust Enrichment and Grain Growth in a Smooth Disk around the DG Tau Protostar Revealed by ALMA Triple Bands Frequency Observations 査読有り国際共著 Open Access

Ohashi, S., Momose, M., Kataoka, A., Higuchi, A.E., Tsukagoshi, T., Ueda, T., Codella, C., Podio, L., Hanawa, T., Sakai, N., Kobayashi, H., Okuzumi, S., and Tanaka, H.

The Astrophysical Journal 954 巻 ( 2 ) 頁： 110 2023年9月

A Constraint on the Amount of Hydrogen from the CO Chemistry in Debris Disks 査読有り Open Access

Iwasaki, K; Kobayashi, H; Higuchi, AE; Aikawa, Y

ASTROPHYSICAL JOURNAL 950 巻 ( 1 ) 2023年6月

Heavy-element accretion by proto-Jupiter in a massive planetesimal disc, revisited 査読有り国際共著 Open Access

Shibata, S.; Helled, R.; Kobayashi, H.

Monthly Notices of the Royal Astronomical Society 519 巻 ( 2 ) 頁： 1713 - 1731 2023年2月

Collisional Growth and Fragmentation of Dust Aggregates. II. Mass Distribution of Icy Fragments 査読有り Open Access

Hasegawa, Yukihiko; Suzuki, Takeru K.; Tanaka, Hidekazu; Kobayashi, Hiroshi; Wada, Koji

The Astrophysical Journal 944 巻 ( 1 ) 頁： id.38 2023年2月

Spitzer/IRS Full Spectral Modeling to Characterize Mineralogical Properties of Silicate Dust in Heavily Obscured AGNs 査読有り Open Access

Tsuchikawa, T.; Kaneda, H.; Oyabu, S.; Kokusho, T.; Kobayashi, H.; Toba, Y.

The Astrophysical Journal 941 巻 ( 1 ) 頁： id.50 2022年12月

Nonlinear Outcome of Coagulation Instability in Protoplanetary Disks. II. Dust-ring Formation Mediated by Backreaction and Fragmentation 査読有り Open Access

Tominaga, Ryosuke T.; Tanaka, Hidekazu; Kobayashi, Hiroshi; Inutsuka, Shu-ichiro

The Astrophysical Journal 940 巻 ( 2 ) 頁： id.152 2022年12月

Nonlinear Outcome of Coagulation Instability in Protoplanetary Disks. I. First Numerical Study of Accelerated Dust Growth and Dust Concentration at Outer Radii 査読有り Open Access

Tominaga, Ryosuke T.; Kobayashi, Hiroshi; Inutsuka, Shu-ichiro

The Astrophysical Journal 937 巻 ( 1 ) 頁： id.21 2022年9月

Formation of Dust Clumps with Sub-Jupiter Mass and Cold Shadowed Region in Gravitationally Unstable Disk around Class 0/I Protostar in L1527 IRS 査読有り国際共著 Open Access

Ohashi, Satoshi; Nakatani, Riouhei; Liu, Hauyu Baobab; Kobayashi, Hiroshi; Zhang, Yichen; Hanawa, Tomoyuki; Sakai, Nami

The Astrophysical Journal 934 巻 ( 2 ) 頁： id.163 2022年8月

No Evidence of the Significant Grain Growth but Tentative Discovery of Disk Substructure in a Disk around the Class I Protostar L1489 IRS Open Access

Ohashi Satoshi, Kobayashi Hiroshi, Sai Jinshi, Sakai Nami

ASTROPHYSICAL JOURNAL 933 巻 ( 1 ) 2022年7月

Coagulation Instability in Protoplanetary Disks: A Novel Mechanism Connecting Collisional Growth and Hydrodynamical Clumping of Dust Particles 査読有り Open Access

Tominaga, Ryosuke, T.; Inutsuka, Shu-ichiro, Kobayashi, Hiroshi

ASTROPHYSICAL JOURNAL 923 巻頁： id.34 2021年12月

Effect of Dust Size on the Near-infrared Spectra (1.0-5.0 μm) of Brown Dwarf Atmospheres 査読有り Open Access

Sorahana, Satoko; Kobayashi, Hiroshi ; Tanaka, Kyoko K.

ASTROPHYSICAL JOURNAL 919 巻頁： id. 117 2021年10月

SPH simulations for shape deformation of rubble-pile asteroids through spinup: The challenge for making top-shaped asteroids Ryugu and Bennu 査読有り Open Access

Sugiura, Keisuke; Kobayashi, Hiroshi ; Watanabe, Sei-ichiro search by orcid ; Genda, Hidenori search by orcid ; Hyodo, Ryuki ; Inutsuka, Shu-ichiro

Icarus 2021年9月

The Growth of Protoplanets via the Accretion of Small Bodies in Disks Perturbed by the Planetary Gravity 査読有り Open Access

Okamura, Tatsuya; Kobayashi, Hiroshi

ASTROPHYSICAL JOURNAL 916 巻頁： id. 109 2021年8月

A systematic study of silicate absorption features in heavily obscured AGNs observed by Spitzer/IRS 査読有り Open Access

Tsuchikawa, T. ; Kaneda, H. ; Oyabu, S. ; Kokusho, T. ; Kobayashi, H. ; Yamagishi, M. ; Toba, Y.

ASTRONOMY & ASTROPHYSICS 651 巻頁： A117 2021年7月

Photoevaporation of Grain-depleted Protoplanetary Disks around Intermediate-mass Stars: Investigating the Possibility of Gas-rich Debris Disks as Protoplanetary Remnants 査読有り国際共著 Open Access

Nakatani, Riouhei; Kobayashi, Hiroshi; Kuiper, Rolf; Nomura, Hideko; Aikawa, Yuri

ASTROPHYSICAL JOURNAL 915 巻頁： id. 90 2021年7月

Collisional Growth and Fragmentation of Dust Aggregates with Low Mass Ratios. I. Critical Collision Velocity for Water Ice 査読有り Open Access

Hasegawa, Yukihiko; Suzuki, Takeru K.; Tanaka, Hidekazu; Kobayashi, Hiroshi; Wada, Koji

ASTROPHYSICAL JOURNAL 915 巻頁： id.22 2021年7月

New Growth Mechanism of Dust Grains in Protoplanetary Disks with Magnetically Driven Disk Winds 査読有り Open Access

Taki Tetsuo, Kuwabara Koh, Kobayashi Hiroshi, Suzuki Takeru K.

ASTROPHYSICAL JOURNAL 909 巻 ( 1 ) 2021年3月

Ring Formation by Coagulation of Dust Aggregates in the Early Phase of Disk Evolution around a Protostar 査読有り国際共著 Open Access

Ohashi Satoshi, Kobayashi Hiroshi, Nakatani Riouhei, Okuzumi Satoshi, Tanaka Hidekazu, Murakawa Koji, Zhang Yichen, Liu Hauyu Baobab, Sakai Nami

ASTROPHYSICAL JOURNAL 907 巻 ( 2 ) 2021年2月

Is water ice an efficient facilitator for dust coagulation? 査読有り Open Access

Kimura Hiroshi, Wada Koji, Kobayashi Hiroshi, Senshu Hiroki, Hirai Takayuki, Yoshida Fumi, Kobayashi Masanori, Hong Peng K., Arai Tomoko, Ishibashi Ko, Yamada Manabu

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 498 巻 ( 2 ) 頁： 1801 - 1813 2020年10月

Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution 査読有り Open Access

Morota T., Sugita S., Cho Y., Kanamaru M., Tatsumi E., Sakatanit N., Honda R., Hirata N., Kikuchi H., Yamada M., Yokota Y., Kamedal S., Matsuoka M., Sawada H., Honda C., Kouyama T., Ogawa K., Suzuki H., Yoshioka K., Hayakawa M., Hirata N., Hirabayashi M., Miyamoto H., Michikami T., Hiroi T., Hemmi R., Barnouin O. S., Ernst C. M., Kitazatou K., Nakamura T., Riu L., Senshu H., Kobayashi H., Sasaki S., Komatsu G., Tanabe N., Fujii Y., Irie T., Suemitsu M., Takaki N., Sugimoto C., Yumoto K., Ishida M., Kato H., Moroi K., Domingue D., Michel P., Pilorget C., Iwata T., Abe M., Ohtake M., Nakauchi Y., Tsumura K., Yabuta H., Ishihara Y., Noguchi R., Matsumoto K., Miura A., Namiki N., Tachibana S., Arakawa M., Ikeda H., Wada K., Mizuno T., Hirose C., Hosoda S., Mori O., Shimada T., Soldini S., Tsukizaki R., Yano H., Ozaki M., Takeuchi H., Yamamoto Y., Okada T., Shimaki Y., Shirai K., Iijima Y., Noda H., Kikuchi S., Yamaguchi T., Ogawa N., Ono G., Mimasu Y., Yoshikawa K., Takahashi T., Takei Y., Fujii A., Nakazawa S., Terui F., Tanaka S., Yoshikawa M., Saiki T., Watanabe S., Tsuda Y.

SCIENCE 368 巻 ( 6491 ) 頁： 654 - + 2020年5月

High-resolution simulations of catastrophic disruptions: Resultant shape distributions Open Access

Sugiura Keisuke, Kobayashi Hiroshi, Inutsuka Shu-ichiro

PLANETARY AND SPACE SCIENCE 181 巻 2020年2月

Importance of Giant Impact Ejecta for Orbits of Planets Formed during the Giant Impact Era Open Access

Kobayashi Hiroshi, Isoya Kazuhide, Sato Yutaro

ASTROPHYSICAL JOURNAL 887 巻 ( 2 ) 2019年12月

First Subarcsecond Submillimeter-wave [CI] Image of 49 Ceti with ALMA Open Access

Higuchi Aya E., Saigo Kazuya, Kobayashi Hiroshi, Iwasaki Kazunari, Momose Munetake, Soon Kang Lou, Sakai Nami, Kunitomo Masanobu, Ishihara Daisuke, Yamamoto Satoshi

ASTROPHYSICAL JOURNAL 883 巻 ( 2 ) 2019年10月

Collisional elongation: Possible origin of extremely elongated shape of 1I/'Oumuamua Open Access

Sugiura Keisuke, Kobayashi Hiroshi, Inutsuka Shu-ichiro

ICARUS 328 巻頁： 14 - 22 2019年8月

Near- to mid-infrared spectroscopy of the heavily obscured AGN LEDA 1712304 with AKARI/IRC Open Access

Tsuchikawa T., Kaneda H., Oyabu S., Kokusho T., Morihana K., Kobayashi H., Yamagishi M., Toba Y.

ASTRONOMY & ASTROPHYSICS 626 巻 2019年6月

Toward understanding the origin of asteroid geometries Variety in shapes produced by equal-mass impacts Open Access

Sugiura K., Kobayashi H., Inutsuka S.

ASTRONOMY & ASTROPHYSICS 620 巻 2018年12月

Collisional Disruption of Planetesimals in the Gravity Regime with iSALE Code: Comparison with SPH code for Purely Hydrodynamic Bodies 査読有り Open Access

Ryo Suetsugu, Hidekazu Tanaka, Hiroshi Kobayashi, Hidenori Genda

Icarus 314 巻頁： 121-132 2018年11月

From Planetesimal to Planet in Turbulent Disks. II. Formation of Gas Giant Planets Open Access

Kobayashi Hiroshi, Tanaka Hidekazu

ASTROPHYSICAL JOURNAL 862 巻 ( 2 ) 2018年8月

Star formation induced by cloud-cloud collisions and galactic giant molecular cloud evolution 査読有り Open Access

Kobayashi Masato I. N., Kobayashi Hiroshi, Inutsuka Shu-ichiro, Fukui Yasuo

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 70 巻 2018年5月

Impact erosion model for gravity-dominated planetesimals 査読有り Open Access

H. Genda, T. Fujita, H. Kobayashi, H. Tanaka, R. Suetsugu, Y. Abe

Icarus 294 巻頁： 234-246 2017年9月

Impact erosion model for gravity-dominated planetesimals Open Access

Genda Hidenori, Fujita Tomoaki, Kobayashi Hiroshi, Tanaka Hidekazu, Suetsugu Ryo, Abe Yutaka

ICARUS 294 巻頁： 234-246 2017年9月

A likely detection of a local interplanetary dust cloud passing near the Earth in the AKARI mid-infrared all-sky map Open Access

D. Ishihara, T. Kondo, H. Kaneda, T. Suzuki, K. Nakamichi, S. Takaba, H. Kobayashi, S. Masuda, T. Ootsubo, J. Pyo, T. Onaka

ASTRONOMY & ASTROPHYSICS 603 巻 2017年7月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：EDP SCIENCES S A

Context. We are creating the AKARI mid-infrared all-sky diffuse maps. Through a foreground removal of the zodiacal emission, we serendipitously detected a bright residual component whose angular size is about 50 degrees x 20 degrees at a wavelength of 9 mu m.
Aims. We investigate the origin and the physical properties of the residual component.
Methods. We measured the surface brightness of the residual component in the AKARI mid-infrared all-sky maps.
Results. The residual component was significantly detected only in 2007 January, even though the same region was observed in 2006 July and 2007 July, which shows that it is not due to the Galactic emission. We suggest that this may be a small cloud passing near the Earth. By comparing the observed intensity ratio of I-9 mu m/I-18 mu m with the expected intensity ratio assuming thermal equilibrium of dust grains at 1 AU for various dust compositions and sizes, we find that dust grains in the moving cloud are likely to be much smaller than typical grains that produce the bulk of the zodiacal light.
Conclusions. Considering the observed date and position, it is likely that it originates in the solar coronal mass ejection ( CME) which took place on 2007 January 25.

DOI： 10.1051/0004-6361/201628954

Web of Science

Size dependence of dust distribution around the earth orbit 査読有り Open Access

T. Ueda, H. Kobayashi, T. Takeuchi, D. Ishihara, T. Kondo, H. Kaneda

Astrophysical Journal 153 巻 ( 5 ) 頁： 232 2017年5月

Faint warm debris disks around nearby bright stars explored by AKARI and IRSF 査読有り Open Access

Daisuke Ishihara, Nami Takeuchi, Hiroshi Kobayashi, Takahiro Nagayama, Hidehiro Kaneda, Shu-ichiro Inutsuka, Hideaki Fujiwara, Takashi Onaka

Astronomy & Astrophysics 601 巻頁： A72 2017年5月

Size Dependence of Dust Distribution around the Earth Orbit Open Access

Ueda Takahiro, Kobayashi Hiroshi, Takeuchi Taku, Ishihara Daisuke, Kondo Toru, Kaneda Hidehiro

ASTRONOMICAL JOURNAL 153 巻 ( 5 ) 2017年5月

Faint warm debris disks around nearby bright stars explored by AKARI and IRSF Open Access

Daisuke Ishihara, Nami Takeuchi, Hiroshi Kobayashi, Takahiro Nagayama, Hidehiro Kaneda, Shu-ichiro Inutsuka, Hideaki Fujiwara, Takashi Onaka

ASTRONOMY & ASTROPHYSICS 601 巻頁： A72 2017年5月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：EDP SCIENCES S A

Context. Debris disks are important observational clues for understanding planetary-system formation process. In particular, faint warm debris disks may be related to late planet formation near 1 au. A systematic search of faint warm debris disks is necessary to reveal terrestrial planet formation.
Aims. Faint warm debris disks show excess emission that peaks at mid-IR wavelengths. Thus we explore debris disks using the AKARI mid-IR all-sky point source catalog (PSC), a product of the second generation unbiased IR all-sky survey.
Methods. We investigate IR excess emission for 678 isolated main-sequence stars for which there are 18 mu m detections in the AKARI mid-IR all-sky catalog by comparing their fluxes with the predicted fluxes of the photospheres based on optical to near-IR fluxes and model spectra. The near-IR fluxes are first taken from the 2MASS PSC. However, 286 stars with Ks < 4.5 in our sample have large flux errors in the 2MASS photometry due to saturation. Thus we have measured accurate J, H, and Ks band fluxes, applying neutral density (ND) filters for Simultaneous InfraRed Imager for Unbiased Survey (SIRIUS) on IRSF, the phi 1.4m near-IR telescope in South Africa, and improved the flux accuracy from 14% to 1.8% on average.
Results. We identified 53 debris-disk candidates including eight new detections from our sample of 678 main-sequence stars. The detection rate of debris disks for this work is similar to 8%, which is comparable with those in previous works by Spitzer and Herschel.
Conclusions. The importance of this study is the detection of faint warm debris disks around nearby field stars. At least nine objects have a large amount of dust for their ages, which cannot be explained by the conventional steady-state collisional cascade model.

DOI： 10.1051/0004-6361/201526215

Open Access

Web of Science

Detection of Submillimeter-wave [C i] Emission in Gaseous Debris Disks of 49 Ceti and β Pictoris 査読有り Open Access

Aya E Higuchi, Aki Sato, Takashi Tsukagoshi, Nami Sakai, Kazunari Iwasaki, Munetake Momose, Hiroshi Kobayashi, Daisuke Ishihara, Sakae Watanabe, Hidehiro Kaneda, Satoshi Yamamoto

Astrophysical Journal 839 巻 ( 1 ) 頁： L14 2017年4月

Orbital Evolution of Moons in Weakly Accreting Circumplanetary Disks Open Access

Yuri I Fujii, Hiroshi Kobayashi, Sanemichi Z Takahashi, Oliver Gressel

Astronomical Journal 153 巻 ( 4 ) 頁： 194 2017年4月

Detection of Submillimeter-wave [C i] Emission in Gaseous Debris Disks of 49 Ceti and β Pictoris Open Access

Aya E Higuchi, Aki Sato, Takashi Tsukagoshi, Nami Sakai, Kazunari Iwasaki, Munetake Momose, Hiroshi Kobayashi, Daisuke Ishihara, Sakae Watanabe, Hidehiro Kaneda, Satoshi Yamamoto

Astrophysical Journal 839 巻 ( 1 ) 頁： L14 2017年4月

Orbital Evolution of Moons in Weakly Accreting Circumplanetary Disks Open Access

Fujii Yuri I., Kobayashi Hiroshi, Takahashi Sanemichi Z., Gressel Oliver

ASTRONOMICAL JOURNAL 153 巻 ( 4 ) 2017年4月

Evolutionary Description of Giant Molecular Cloud Mass Functions on Galactic Disks 査読有り Open Access

Masato I.N. Kobayashi, Shu-ichiro Inutsuka, Hiroshi Kobayashi, Kenji Hasegawa

Astrophysical Journal 836 巻 ( 2 ) 頁： 175 2017年2月

Evolutionary Description of Giant Molecular Cloud Mass Functions on Galactic Disks Open Access

Masato I. N. Kobayashi, Shu-ichiro Inutsuka, Hiroshi Kobayashi, Kenji Hasegawa

ASTROPHYSICAL JOURNAL 836 巻 ( 2 ) 2017年2月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IOP PUBLISHING LTD

Recent radio observations show that giant molecular cloud (GMC) mass functions noticeably vary across galactic disks. High-resolution magnetohydrodynamics simulations show that multiple episodes of compression are required for creating a molecular cloud in the magnetized interstellar medium. In this article, we formulate the evolution equation for the GMC mass function to reproduce the observed profiles, for which multiple compressions are driven by a network of expanding shells due to H II regions and supernova remnants. We introduce the cloudcloud collision (CCC) terms in the evolution equation in contrast to previous work (Inutsuka et al.). The computed time evolution suggests that the GMC mass function slope is governed by the ratio of GMC formation timescale to its dispersal timescale, and that the CCC effect is limited only in the massive end of the mass function. In addition, we identify a gas resurrection channel that allows the gas dispersed by massive stars to regenerate GMC populations or to accrete onto pre-existing GMCs. Our results show that almost all of the dispersed gas contributes to the mass growth of pre-existing GMCs in arm regions whereas less than 60% contributes in inter-arm regions. Our results also predict that GMC mass functions have a single power-law exponent in the mass range < 10(5.5) M-circle dot (where M-circle dot represents the solar mass), which is well characterized by GMC self-growth and dispersal timescales. Measurement of the GMC mass function slope provides a powerful method to constrain those GMC timescales and the gas resurrecting factor in various environments across galactic disks.

DOI： 10.3847/1538-4357/836/2/175

Web of Science

Sintering-induced Dust Ring Formation in Protoplanetary Disks: Application to the HL Tau Disk 査読有り

Satoshi Okuzumi, Munetake Momose, Sin-iti Sirono, Hiroshi Kobayashi, Hidekazu Tanaka

Astrophysical Journal 821 巻 ( 2 ) 頁： id 82, 24 2016年4月

From Planetesimals to Planets in Turbulent Protoplanetary Disks. I. Onset of Runaway Growth 査読有り Open Access

Hiroshi Kobayashi, Hidekazu Tanaka, Satoshi Okuzumi

Astrophysical Journal 817 巻 ( 2 ) 頁： id. 105, 10 2016年2月

Resolution Dependence of Disruptive Collisions between Planetesimals in the Gravity Regime 査読有り

H. Genda, T. Fujita, H. Kobayashi, H. Tanaka, Y. Abe

Icarus 262 巻頁： 58 2015年12月

Comet C/2012 S1 (ISON) coma composition at ~4 au from HST observations 査読有り

E. Zubko, G. Videen, D. C. Hines, Y. Shkuratov, V. Kaydash, K. Muinonen, M. M. Knight, M. L. Sitko, C. M. Lisse, M. Mutchler, D. H. Wooden, J.-Y. Li, H. Kobayashi

Planetary and Space Science 118 巻頁： 138 2015年12月

Warm Debris Disks Produced by Giant Impacts During Terrestrial Planet Formation

H. Genda, H. Kobayashi, E. Kokubo

Astrophysical Journal 810 巻頁： 136(8p) 2015年11月

Significant gas-to-dust ratio asymmetry and variation in the disk of HD 142527 and the indication of gas depletion Open Access

Takayuki Muto, Takashi Tsukagoshi, Munetake Momose, Tomoyuki Hanawa, Hideko Nomura, Misato Fukagawa, Kazuya Saigo, Akimasa Kataoka, Yoshimi Kitamura, Sanemichi Z Takahashi, Shu-ichiro Inutsuka, Taku Takeuchi, Hiroshi Kobayashi, Eiji Akiyama, Mitsuhiko Honda, Hideaki Fujiwara, Hiroshi Shibai

Publications of the Astronomical Society of Japan 頁： psv098 2015年11月

Cohesion of Amorphous Silica Spheres: Toward a Better Understanding of The Coagulation Growth of Silicate Dust Aggregates 査読有り

Hiroshi Kimura, Koji Wada, Hiroki Senshu, Hiroshi Kobayashi

Astrophysical Journal 812 巻頁： 1 2015年10月

Planetary and meteoritic Mg/Si and δ30Si variations inherited from solar nebula chemistry 査読有り Open Access

N. Dauphas, F. Poitrasson, C. Burkhardt, H. Kobayashi, K. Kurosawa

Earth and Planetary Science Letter 427 巻頁： 236 2015年10月

Formation of terrestrial planets in disks evolving via disk winds and implications for the origin of the solar system's terrestrial planets Open Access

M. Ogihara, H. Kobayashi, S. Inutsuka, T. Suzuki

Astronomy & Astrophysics 579 巻頁： A65 2015年6月

Orbital Evolution of Planetesimals in Gaseous Disks

Hiroshi Kobayashi

Earth, Planets and Space 67 巻頁： 60 2015年4月

Debris disc formation induced by planetary growth 査読有り Open Access

Hiroshi Kobayashi, Torsten Loehne

Monthly Notices of the Royal Astronomical Society 442 巻 ( 4 ) 頁： 464-8602 2014年8月

N-body Simulations of Terrestrial Planet Formation under the Influence of a Hot Jupiter 査読有り

Ogihara, Masahiro; Kobayashi, Hiroshi; Inutsuka, Shu-ichiro

The Astrophysical Journal 787 巻 ( 2 ) 頁： id 172(16p) 2014年6月

Local Enhancement of the Surface Density in the Protoplanetary Ring Surrounding HD 142527 査読有り Open Access

Fukagawa, Misato; Tsukagoshi, Takashi; Momose, Munetake; Saigo, Kazuya; Ohashi, Nagayoshi; Kitamura, Yoshimi; Inutsuka, Shu-ichiro; Muto, Takayuki; Nomura, Hideko; Takeuchi, Taku; Kobayashi, Hiroshi; Hanawa, Tomoyuki; Akiyama, Eiji; Honda, Mitsuhiko; Fujiwara, Hideaki; Kataoka, Akimasa; Takahashi, Sanemichi Z.; Shibai, Hiroshi

Publications of the Astronomical Society of Japan 65 巻 ( 6 ) 頁： L14 (5p) 2013年12月

Growth efficiency of dust aggregates through collisions with high mass ratios 査読有り Open Access

Wada, Koji; Tanaka, Hidekazu; Okuzumi, Satoshi; Kobayashi, Hiroshi; Suyama, Toru; Kimura, Hiroshi; Yamamoto, Tetsuo

Astronomy & Astrophysics 559 巻頁： id A62 (8p) 2013年11月

Crowding-out of Giants by Dwarfs: An Origin for the Lack of Companion Planets in Hot Jupiter Systems 査読有り Open Access

Ogihara, Masahiro; Inutsuka, Shu-ichiro; Kobayashi, Hiroshi

The Astrophysical Journal Letters 778 巻 ( 1 ) 頁： id L9 (5p) 2013年11月

Evolution of dust grain size distribution by shattering in the interstellar medium: Robustness and uncertainty 査読有り Open Access

Hirashita, H.; Kobayashi, H.

Earth, Planets and Space 65 巻 ( 10 ) 頁： 1083-1094 2013年10月

Condition for Capture into First-order Mean Motion Resonances and Application to Constraints on the Origin of Resonant Systems 査読有り

Ogihara, Masahiro; Kobayashi, Hiroshi

The Astrophysical Journal 775 巻 ( 1 ) 頁： id 34 (12p) 2013年9月

Small planetesimals in a massive disk formed Mars 査読有り Open Access

Kobayashi, Hiroshi; Dauphas, Nicolas

Icarus 225 巻 ( 1 ) 頁： 122-130 2013年7月

Dust mantle of comet 9P/Tempel 1: dynamical constraints on physical properties 査読有り Open Access

Kobayashi, H.; Kimura, H.; Yamamoto, S.

Astronomy & Astrophysics 550 巻頁： id A72 (4p) 2013年2月

Rapid Formation of Saturn after Jupiter Completion 査読有り

Kobayashi, Hiroshi; Ormel, Chris W.; Ida, Shigeru

The Astrophysical Journal 756 巻 ( 1 ) 頁： id 70 (7p) 2012年9月

Rapid Coagulation of Porous Dust Aggregates outside the Snow Line: A Pathway to Successful Icy Planetesimal Formation 査読有り

Okuzumi, Satoshi; Tanaka, Hidekazu; Kobayashi, Hiroshi; Wada, Koji

The Astrophysical Journal 752 巻 ( 2 ) 頁： id 106 (18p) 2012年6月

An improved model of the Edgeworth-Kuiper debris disk 査読有り Open Access

Vitense, Ch.; Krivov, A. V.; Kobayashi, H.; Löhne, T.

Astronomy & Astrophysics 540 巻頁： id A30 (10p) 2012年4月

Understanding How Planets Become Massive. I. Description and Validation of a New Toy Model 査読有り

Ormel, C. W.; Kobayashi, H.

The Astrophysical Journal 747 巻 ( 2 ) 頁： id 115 (21p) 2012年3月

破壊が決める原始惑星の最終質量招待有り査読有り Open Access

小林浩

日本惑星科学会誌「遊星人」 20 巻 ( 4 ) 頁： 317 2011年12月

Sublimation temperature of circumstellar dust particles and its importance for dust ring formation 査読有り Open Access

Kobayashi, H.; Kimura, H.; Watanabe, S.-i.; Yamamoto, T.; Müller, S.

Earth, Planets and Space 63 巻 ( 10 ) 頁： 1067-1075 2011年10月

Planetary Core Formation with Collisional Fragmentation and Atmosphere to Form Gas Giant Planets 査読有り

Kobayashi, Hiroshi; Tanaka, Hidekazu; Krivov, Alexander V.

The Astrophysical Journal 738 巻 ( 1 ) 頁： id 35 (11p) 2011年9月

Planetary growth with collisional fragmentation and gas drag 査読有り Open Access

Kobayashi, Hiroshi; Tanaka, Hidekazu; Krivov, Alexander V.; Inaba, Satoshi

Icarus 209 巻 ( 2 ) 頁： 836-847 2010年10月

Fragmentation model dependence of collision cascades 査読有り

Kobayashi, Hiroshi; Tanaka, Hidekazu

Icarus 206 巻 ( 2 ) 頁： 735-746 2010年4月

Planets in orbit around β Pictoris formed the orbital architecture of planetesimal belts? 査読有り

Kimura, H.; Fukagawa, M.; Tamura, M.; Kobayashi, H.; Yamamoto, T.; Ishii, M.; Suto, H.

Earth, Planets and Space 62 巻 ( 1 ) 頁： 111-116 2010年1月

Collisional process on Comet 9/P Tempel 1: mass loss of its dust and ice by impacts of asteroidal objects and its collisional history 査読有り Open Access

Yamamoto, S.; Wada, K.; Kobayashi, H.; Kimura, H.; Ishiguro, M.; Matsui, T.

Earth, Planets and Space 62 巻 ( 1 ) 頁： 5-11 2010年1月

Ice sublimation of dust particles and their detection in the outer solar system 査読有り Open Access

Kobayashi, H.; Kimura, H.; Yamamoto, S.; Watanabe, S.-I.; Yamamoto, T.

Earth, Planets and Space 62 巻 ( 1 ) 頁： 57-61 2010年1月

Dust ring formation due to sublimation of dust grains drifting radially inward by the Poynting-Robertson drag: An analytical model 査読有り

Kobayashi, Hiroshi; Watanabe, Sei-ichiro; Kimura, Hiroshi; Yamamoto, Tetsuo

Icarus 201 巻 ( 1 ) 頁： 395-405 2009年5月

Dust ring formation due to ice sublimation of radially drifting dust particles under the Poynting Robertson effect in debris disks 査読有り

Kobayashi, Hiroshi; Watanabe, Sei-ichiro; Kimura, Hiroshi; Yamamoto, Tetsuo

Icarus 195 巻 ( 2 ) 頁： 871-881 2008年6月

太陽系外縁天体の起源と進化招待有り査読有り

小林浩

日本惑星科学会誌「遊星人」 17 巻 ( 1 ) 頁： 22 2008年3月

Comet 9P/Tempel 1: Interpretation with the Deep Impact Results 査読有り

Yamamoto, Satoru; Kimura, Hiroshi; Zubko, Evgenij; Kobayashi, Hiroshi; Wada, Koji; Ishiguro, Masateru; Matsui, Takafumi

The Astrophysical Journal 673 巻 ( 2 ) 頁： L199-L202 2008年2月

The evidence of an early stellar encounter in Edgeworth Kuiper belt 査読有り

Kobayashi, Hiroshi; Ida, Shigeru; Tanaka, Hidekazu

Icarus 177 巻 ( 1 ) 頁： 246-255 2005年9月

Percolation-fission model study of the 1 GeV proton-induced reaction on Pb 208 targets 査読有り

M Katsuma, H Kobayashi, T Sasa, T Sawada

Physical Review C 71 巻 ( 4 ) 頁： 044605 2005年4月

なぜ海王星以遠では惑星がないのか? 査読有り

小林浩，井田茂

日本惑星科学会誌「遊星人」 10 巻 ( 4 ) 頁： 208 2001年12月

The Effects of a Stellar Encounter on a Planetesimal Disk 査読有り

Kobayashi, Hiroshi; Ida, Shigeru

Icarus 153 巻 ( 2 ) 頁： 416-429 2001年10月

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