期刊
PHYSICS LETTERS B
卷 735, 期 -, 页码 402-411出版社
ELSEVIER
DOI: 10.1016/j.physletb.2014.06.066
关键词
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资金
- CITA National Fellowship
- 1000 Young Talents Fellowship in China
- 973 Program [2013CB837900]
- NSFC [11261140641]
- CAS [KJZD-EW-T01]
- Strategic Priority Research Program The Emergence of Cosmological Structures of the Chinese Academy of Sciences [XDB09000000]
- Natural Science and Engineering Research Council of Canada
We investigate the imprint of dark energy on the kinetic Sunyaev-Zel'dovich (kSZ) angular power spectrum on scales of l = 1000 to 10 000, and find that the kSZ signal is sensitive to the dark energy parameter. For example, varying the constant w by 20% around w = -1 results in a greater than or similar to 10% change on the kSZ spectrum; changing the dark energy dynamics parametrized by w(a) by +/- 0.5, a 30% change on the kSZ spectrum is expected. We discuss the observational aspects and develop a fitting formula for the kSZ power spectrum. Finally, we discuss how the precise modeling of the post-reionization signal would help the constraints on patchy reionization signal, which is crucial for measuring the duration of reionization. (C) 2014 The Authors. Published by Elsevier B.V.
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