Papers - ICHIKI, Kiyotomo
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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
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Constraints on neutrino masses from WMAP5 and BBN in the lepton asymmetric universe Reviewed
M. Shiraishi, K. Ichikawa, K. Ichiki, N. Sugiyama and M. Yamaguchi
J.Cosmo.Astropart.Phys. Vol. 7 page： 005 2009.7
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*Constraints on Neutrino Masses from Weak Lensing Invited Reviewed
K. Ichiki, M Takada, T. Takahashi
Phys. Rev. D Vol. 79 page： 023520 2009.1
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Probing the Nature of the Weakest Intergalactic Magnetic Fields with the High Energy Emission of Gamma-Ray Bursts Reviewed
K. Ichiki, S. Inoue, K. Takahashi
Astrophys. J. Vol. 682 page： 127 2008
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Effects of a Primordial Magnetic Field on Low and High Multipoles of the CMB Reviewed
D. G. Yamazaki, K. Ichiki, T. Kajino, G. J. Mathews
Phys.Rev.D Vol. 77 page： 043005 2008
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Cosmic Shear from Scalar-Induced Gravitational Waves Reviewed
D. Sarkar, P. Serra, A. Cooray, K. Ichiki, D. Baumann
Phys.Rev.D Vol. 77 page： 103515 2008
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Constraints on the Primordial Magnetic Field from sigma_8 Reviewed
D. G. Yamazaki, K. Ichiki, T Kajino, G. J. Mathews
Phys.Rev.D Vol. 78 page： 123001 2008
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Probing Intergalactic Magnetic Fields in the GLAST Era through Pair Echo Emission from TeV Blazars Reviewed
K. Murase, K. Takahashi, S. Inoue, K. Ichiki, S. Nagataki
Astrophys.J. Vol. 686 page： L67 2008
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Detectability of Pair Echos from Gamma-Ray Bursts and Intergalactic Magnetic Fields Reviewed
K. Takahashi, K. Murase, K. Ichiki, S. Inoue, S. Nagataki
Astrophys.J. Vol. 687 page： L67 2008