Cosmic microwave background and supernova constraints on quintessence: Concordance regions and target models

被引:216
作者
Caldwell, RR [1 ]
Doran, M [1 ]
机构
[1] Dartmouth Coll, Dept Phys & Astron, Wilder Lab 6127, Hanover, NH 03755 USA
来源
PHYSICAL REVIEW D | 2004年 / 69卷 / 10期
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevD.69.103517
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We perform a detailed comparison of the Wilkinson Microwave Anisotropy Probe measurements of the cosmic microwave background (CMB) temperature and polarization anisotropy with the predictions of quintessence cosmological models of dark energy. We consider a wide range of quintessence models, including a constant equation of state, a simply parametrized, time-evolving equation of state, a class of models of early quintessence, and scalar fields with an inverse-power law potential. We also provide a joint fit to the Cosmic Background Imager (CBI) and Arcminute Cosmology Bolometer Array Receiver (ACBAR) CMB data, and the type 1a supernovae. Using these select constraints we identify viable, target models which should prove useful for numerical studies of large scale structure formation, and to rapidly estimate the impact to the concordance region when new or improved observations become available.
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页数:6
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