Wei 2008 用最近的各种数据限制宇宙学参数

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· arXiv e-print (arXiv:0809.0057)

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Title:		Cosmological Models and Latest Observational Data
Authors:		Wei, Hao
Publication:		eprint arXiv:0809.0057
Publication Date:		08/2008
Origin:		ARXIV
Keywords:		Astrophysics
Comment:		9 pages, 5 figures, 1 table, revtex4
Bibliographic Code:		2008arXiv0809.0057W

Abstract

In this note, we consider the observational constraints on some cosmological models by using the 307 Union type Ia supernovae (SNIa), the 32 calibrated Gamma-Ray Bursts (GRBs) at $z>1.4$, the updated shift parameter $R$ from WMAP 5-year data (WMAP5), and the distance parameter $A$ of the measurement of baryon acoustic oscillation (BAO) peak in the distribution of SDSS luminous red galaxies with the updated scalar spectral index $n_s$ from WMAP5. The tighter constraints obtained here update the ones obtained previously in the literature.

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