Constraining the dark universe

被引：16

作者：

Bean, R

Hansen, SH

Melchiorri, A

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England

[2] Univ Oxford, NAPL, Oxford OX1 3RH, England

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2002年 / 110卷

关键词：

D O I：

10.1016/S0920-5632(02)01475-5

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We combine complementary datasets to constrain dark energy. Using standard Big Bang Nucleosynthesis and the observed abundances of primordial nuclides to put constraints on Omega(Q) at temperatures near T similar to 1MeV, we find the strong constraint Omega(Q)(MeV) < 0.045 at 2sigma c.l.. Under the assumption of flatness, using results from Cosmic Microwave Background (CMB) anisotropy measurements, high redshift supernovae (SN-Ia) observations and data from local cluster abundances we put a new constraint on the equation of state parameter w(Q) < -0.85 at 68% c.l..

引用

页码：167 / 172

页数：6

共 45 条

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