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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

115 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	7-15
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	644
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2006.11.027
Publication status	Published - 4 Jan 2007
Externally published	Yes

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10.1016/j.physletb.2006.11.027

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title = "Observational H (z) data and cosmological models",

abstract = "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.",

author = "Hao Wei and Zhang, \{Shuang Nan\}",

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AU - Zhang, Shuang Nan

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AB - 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.

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U2 - 10.1016/j.physletb.2006.11.027

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M3 - Article

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SN - 0370-2693

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1

ER -

Observational H (z) data and cosmological models

Abstract

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