Testing general relativity with current cosmological data

被引：141

作者：

Daniel, Scott F. ^{[1
]}

Linder, Eric V. ^{[1
,2
,3
]}

Smith, Tristan L. ^{[3
]}

Caldwell, Robert R. ^{[4
]}

Cooray, Asantha ^{[5
]}

Leauthaud, Alexie ^{[2
,3
]}

Lombriser, Lucas ^{[6
]}

机构：

[1] Ewha Womans Univ, Inst Early Univ, Seoul, South Korea

[2] Lawrence Berkeley Natl Lab, Berkeley, CA USA

[3] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA

[4] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA

[5] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA

[6] Univ Zurich, Inst Theoret Phys, CH-8006 Zurich, Switzerland

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 12期

基金：

瑞士国家科学基金会;

关键词：

IA SUPERNOVAE; DARK ENERGY; MICROWAVE; SPECTRA; GROWTH;

D O I：

10.1103/PhysRevD.81.123508

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Deviations from general relativity, such as could be responsible for the cosmic acceleration, would influence the growth of large-scale structure and the deflection of light by that structure. We clarify the relations between several different model-independent approaches to deviations from general relativity appearing in the literature, devising a translation table. We examine current constraints on such deviations, using weak gravitational lensing data of the CFHTLS and COSMOS surveys, cosmic microwave background radiation data of WMAP5, and supernova distance data of Union2. A Markov chain Monte Carlo likelihood analysis of the parameters over various redshift ranges yields consistency with general relativity at the 95% confidence level.

引用

页数：11

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