Observational H (z) data and cosmological models

Hao Wei; Shuang Nan Zhang

doi:10.1016/j.physletb.2006.11.027

Observational H (z) data and cosmological models

Hao Wei^*
, Shuang Nan Zhang

^*此作品的通讯作者

Tsinghua University
CAS - Institute of High Energy Physics
University of Alabama in Huntsville

科研成果: 期刊稿件 › 文章 › 同行评审

117 引用（Scopus）

摘要

In this work, we confront ten cosmological models with observational H (z) data. The possible interaction between dark energy and dust matter is allowed in some of these models. Also, we consider the possibility of (effective) equation-of-state parameter (EoS) crossing -1. We find that the best models have an oscillating feature for both H (z) and EoS, with the EoS crossing -1 around redshift z ∼ 1.5.

源语言	英语
页（从-至）	7-15
页数	9
期刊	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
卷	644
期	1
DOI	https://doi.org/10.1016/j.physletb.2006.11.027
出版状态	已出版 - 4 1月 2007
已对外发布	是

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10.1016/j.physletb.2006.11.027

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Observational H (z) data and cosmological models

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