Papers - ICHIKI, Kiyotomo
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Application of cross correlations between CMB and large-scale structure to constraints on the primordial non-Gaussianity Reviewed
Takeuchi, Yoshitaka; Ichiki, Kiyotomo; Matsubara, Takahiko
Physical Review D Vol. 85 ( 4 ) page： 043518 2012.2
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Constraint on the primordial vector mode and its magnetic field generation from seven-year Wilkinson Microwave Anisotropy Probe observations Reviewed
Ichiki, Kiyotomo; Takahashi, Keitaro; Sugiyama, Naoshi
Physical Review D Vol. 85 ( 4 ) page： 043009 2012.2
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Lower Bounds on Intergalactic Magnetic Fields from Simultaneously Observed GeV-TeV Light Curves of the Blazar Mrk 501 Reviewed
Takahashi, Keitaro; Mori, Masaki; Ichiki, Kiyotomo; Inoue, Susumu
The Astrophysical Journal Letters Vol. 744 ( 1 ) page： L7 (4 pages) 2012.1
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Effects of a primordial magnetic field with log-normal distribution on the cosmic microwave background Reviewed
Yamazaki, Dai G.; Ichiki, Kiyotomo; Takahashi, Keitaro
Physical Review D Vol. 84 ( 12 ) page： 123006 (10 pages) 2011.12
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Primordial magnetic fields generated by the non-adiabatic fluctuations at pre-recombination era Reviewed
Maeda, Satoshi; Takahashi, Keitaro; Ichiki, Kiyotomo
Journal of Cosmology and Astroparticle Physics Vol. 11 page： 045 (17 pages) 2011.11
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Formulation and constraints on decaying dark matter with finite mass daughter particles Reviewed
Aoyama, Shohei; Ichiki, Kiyotomo; Nitta, Daisuke; Sugiyama, Naoshi
Journal of Cosmology and Astroparticle Physics Vol. 9 page： 25-45 2011.9
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Computation approach for CMB bispectrum from primordial magnetic fields Reviewed
Shiraishi, Maresuke; Nitta, Daisuke; Yokoyama, Shuichiro; Ichiki, Kiyotomo; Takahashi, Keitaro
Physical Review D Vol. 83 ( 12 ) page： 123523(17 pages) 2011.6
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Cosmic microwave background bispectrum of tensor passive modes induced from primordial magnetic fields
Shiraishi, Maresuke; Nitta, Daisuke; Yokoyama, Shuichiro; Ichiki, Kiyotomo; Takahashi, Keitaro
Physical Review D Vol. 83 ( 12 ) page： 123003(5 pages) 2011.6
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CMB Bispectrum from Primordial Scalar, Vector and Tensor Non-Gaussianities Reviewed
Shiraishi, M.; Nitta, D.; Yokoyama, S.; Ichiki, K.; Takahashi, K.
Progress of Theoretical Physics Vol. 125 ( 4 ) page： 795-813 2011.4
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Probing early cosmic magnetic fields through pair echoes from high-redshift GRBs Reviewed
Takahashi, Keitaro; Inoue, Susumu; Ichiki, Kiyotomo; Nakamura, Takashi
Monthly Notices of the Royal Astronomical Society Vol. 410 ( 4 ) page： 2741-2748 2011.2
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Copula cosmology: Constructing a likelihood function Reviewed
Sato, Masanori; Ichiki, Kiyotomo; Takeuchi, Tsutomu T.
Phys. Rev. D Vol. 83 ( 2 ) page： 023501(8 pages) 2011.1
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Cosmic microwave background bispectrum of vector modes induced from primordial magnetic fields Reviewed
Shiraishi, Maresuke; Nitta, Daisuke; Yokoyama, Shuichiro; Ichiki, Kiyotomo; Takahashi, Keitaro
Phys. Rev. D Vol. 82 ( 12 ) page： 121302(5 pages) 2010.12
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Precise Estimation of Cosmological Parameters Using a More Accurate Likelihood Function Reviewed
Sato, Masanori; Ichiki, Kiyotomo; Takeuchi, Tsutomu T.
Physical Review Letters Vol. 105 ( 25 ) page： 251301(4 pages) 2010.12
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Analytic formulae of the CMB bispectra generated from non-Gaussianity in the tensor and vector perturbations Reviewed
M. Shiraishi, D. Nitta, S. Yokoyama, K. Ichiki, K. Takahashi
Phys. Rev. D Vol. 82 ( 10 ) page： 103505(11 pages) 2010.11
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Constraints on primordial non-Gaussianity from galaxy-CMB lensing cross correlation Reviewed
Takeuchi, Yoshitaka; Ichiki, Kiyotomo; Matsubara, Takahiko
Phys. Rev. D Vol. 82 ( 2 ) page： 023517 2010.7
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Ghost dark matter Reviewed
Furukawa, Tomonori; Yokoyama, Shuichiro; Ichiki, Kiyotomo; Sugiyama, Naoshi; Mukohyama, Shinji
J.Cosmo.Astropart.Phys ( 5 ) page： 007 2010.5
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Constraints on the neutrino mass and the primordial magnetic field from the matter density fluctuation parameter σ8 Reviewed
Yamazaki, Dai G.; Ichiki, Kiyotomo; Kajino, Toshitaka; Mathews, Grant. J.
Phys. Rev. D Vol. 81 ( 10 ) page： 103519 2010.5
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Cosmic discordance: Detection of a modulation in the primordial fluctuation spectrum Reviewed
Ichiki, Kiyotomo; Nagata, Ryo; Yokoyama, Jun'Ichi
Phys. Rev. D Vol. 81 ( 8 ) page： 083010 2010.4
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New constraints on the primordial magnetic field Reviewed
Yamazaki, Dai G.; Ichiki, Kiyotomo; Kajino, Toshitaka; Mathews, Grant J.
Phys. Rev. D Vol. 81 ( 2 ) page： 023008 2010.1
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Brute force reconstruction of the primordial fluctuation spectrum from five-year Wilkinson Microwave Anisotropy Probe observations Reviewed
Ichiki, Kiyotomo; Nagata, Ryo
Phys. Rev. D Vol. 80 ( 8 ) page： 083002 2009.10