Observational Tests for the Cosmological Principle(Current Topics)

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  • 宇宙原理の観測的検証(最近の研究から)
  • 宇宙原理の観測的検証
  • ウチュウ ゲンリ ノ カンソクテキ ケンショウ

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Abstract

The cosmological principle is the most fundamental working hypothesis in modern cosmology, and hence its observational test is one of the biggest challenges in observational cosmology. In this article, we report recent studies on observational tests of the cosmological principle with the distanceredshift relation from Type la supernovae, CMB observations and the redshift drift. Thanks to recent technological developments, we have begun to be able to test the cosmological principle observationally, and thus theoretical studies of inhomogeneous universe models in which the cosmological principle is not assumed are receiving much attention in recent years. We give brief explanations about observables in inhomogeneous universe models which violate the cosmological principle, and report observational constraints so far and future prospects.

Journal

  • Butsuri

    Butsuri 67 (1), 37-43, 2012-01-05

    The Physical Society of Japan

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