Deciphering Cosmological Information from Redshift Surveys of High-z Objects : The Cosmological Light-Cone Effect and Redshift-Space Distortion

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概要

• 論文の詳細を見る

• The three-dimensional distribution of astronomical objects observed in redshift space significantly differs from the true distribution, since the distance to each object cannot be determined by its redshift z only; for z ≪ 1 the peculiar velocity field contaminates the true recession velocity of the Hubble flow, while the true distance for objects with z ≳ 1 sensitively depends on the (unknown and thus assumed) cosmological parameters. This hampers the effort to understand the true distribution of the large-scale structure of the universe. In addition, all cosmological observations are carried out on a light-cone, the null hypersurface of an observer at z = 0. This implies that their intrinsic properties and clustering statistics should change even within the survey volume. Therefore, a proper comparison taking account of the light-cone effect is important to extract any cosmological information from redshift catalogues, especially for z ≳ 1. We present recent theoretical developments on the two effects ≳ -the cosmological light-cone effect and the cosmological redshift-space distortion - that should play key roles in observational cosmology in the 21st century.

• 理論物理学刊行会の論文
• 1999-05-31

著者

• Yamamoto Kazuhiro

  Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine

• SUTO Yasushi

  Department of Physics, The University of Tokyo

• Suto Yasushi

  Department Of Physics School Of Science The University Of Tokyo

• MAGIRA Hiromitsu

  Department of Physics, School of Science, The University of Tokyo

• JING Y.

  Department of Physics and Research Center for the Early University School of Science, University of

• MATSUBARA Takahiko

  Department of Physics and Astronomy, The Johns Hopkins University

• YAMAMOTO Katsuji

  Institute of Field Physics Department of Physics and Astronomy University of North Carolina

• Yamamoto K

  Department Of Physics Hiroshima University

• JING Yipeng

  Shanghai Astronomical Observatory

• JING Yi

  The Partner Group of MPI fur Astrophysik, Shanghai Astronomical Observatory

• Yamamoto Kazuhiro

  Department Of Biotechnology And Chemistry Kinki University

• Jing Y.

  Shanghai Astronomical Observatory

• MATSUBARA Takeo

  ICMT

• Magira H

  Univ. Tokyo Tokyo

• Magira Hiromitsu

  Department Of Forestry College Of Agriculture And Veterinary Medicine Nihon University

• Matsubara Takahiko

  Department Of Physics And Astronomy The Johns Hopkins University

• SUTO Yasushi

  Department of Physics and Research Center for the Early University School of Science, University of Tokyo

• YAMAMOTO Katsuji

  Institute of Field Physics, Department of Physics and Astronomy University of North Carolina

• YAMAMOTO Kazuyoshi

  Department of Physics, Science University of Tokyo

• YAMAMOTO Kunio

  Institute of Physics, college of General Education Osa

• JING Y.

  Department of Physics and Research Center for the Early University School of Science, University of Tokyo

• Jing Y.P.

  Department of Physics and Research Center for the Early University School of Science, University of Tokyo

• Yamamoto Kazuhiro

  Department of Biochemistry, Kinki University

• YAMAMOTO Kazuhiro

  Uji Research Center, Yukawa Institute for Theoretical Physics Kyoto University

• MATSUBARA Takeo

  Department of Applied Physics, Okayama University of Science

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