期刊
ASTRONOMY & ASTROPHYSICS
卷 543, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201117944
关键词
cosmology: miscellaneous; cosmology: theory; dark energy
资金
- Ministry of Science and Technology national basic science program (project 973) [2012CB821804]
- DOE [DEFG03-99EP41093]
We use angular size versus redshift data for galaxy clusters provided by Bonamente and collaborators to place constraints on model parameters of constant and time-evolving dark energy cosmological models. These constraints are compatible with those from other recent data, but are not very restrictive. A joint analysis of the galaxy cluster angular-size data with the more restrictive baryon acoustic oscillation peak length scale and supernova Type Ia apparent-magnitude data, favors a spatially flat cosmological model currently dominated by a time-independent cosmological constant, but does not exclude time-varying dark energy.
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