Distance-Redshift Relation in a Realistic Inhomogeneous Universe(Astrophysics and Cosmology)
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概要
- 論文の詳細を見る
We investigate the distance-redshift relation in a realistic inhomogeneous universe where the mass distribution is described by the mass function of Sheth and Tormen. It is found that the derived distance deviates systematically from the standard distance up to 10% depending on the choice of the lowest halo mass in which baryonic matter condensed to form luminous object such as galaxies. Remarkably the derived distance is well approximated by the Dyer-Roeder distance if we choose the clumpiness parameter α calculated by our model. We also discuss the effect of inhomogeneities in the determination of dark energy parameter in the supernovae observation, and find that this effect must be taken into account for the future high redshift supernovae observation.
- 理論物理学刊行会の論文
- 2009-08-25
著者
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FUTAMASE Toshifumi
Astronomical Institute, Tohoku University
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ニ間瀬 敏史
東北大理
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FUTAMASE Toshifumi
Department of Astronomy, Graduate School of Science, Tohoku University
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Futamase Toshifumi
Department Of Applied Mathematics And Astronomy University College
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Futamase Toshifumi
Department Of Physics Hirosaki University
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Futamase Toshifumi
Astronomical Institute Graduate School Of Science Tohoku University
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OKAMURA Tomohiro
Astronomical Institute, Tohoku University
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Okamura Tomohiro
Astronomical Institute Tohoku University
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FUTAMASE Toshifumi
Department of aeronautical Engineering, Faculty of Engineering Kyoto University
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- Preface
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- Statistical Formulation of Electromagnetism in the Expanding Universe and Arrow of Time : Astrophysics and Relativity
- Possible Measurement of Quintessence and Density Parameter Using Strong Gravitational Lensing Events
- Constraint on the Cosmological Constant by Einstein Ring System 0047-2808
- Resonance between Primordial Gravitational Waves and a Galaxy
- Geometric Bremsstrahlung in the Early Universe
- A Determination of the Hubble Parameter with the Gravitational Lens System PG1115+080
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- 宇宙論における点としての銀河--宇宙原理の検証 (特集 点,粒子,場--その数理と物理イメージ)
- Statistics of QSO Lensing and Cosmological Parameters
- 重力レンズの基礎(重力レンズ現象とHigh-Redshift宇宙,研究会報告)
- Chapter 2 Post-Newtonian Approximation : Its Foundation and Applications
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- Post-Newtonian Hydrodynamic Equations Using the (3+1) Formalism in General Relativity
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