Cosmological Constraints from Hubble Parameter versus Redshift Data

Lado Samushia; Bharat Ratra

doi:10.1086/508662

Cosmological Constraints from Hubble Parameter versus Redshift Data

天体物理学 2011-02-11 v2

作者: Lado Samushia , Bharat Ratra

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摘要

We use the Simon, Verde, & Jimenez (2005) determination of the redshift dependence of the Hubble parameter to constrain cosmological parameters in three dark energy cosmological models. We consider the standard $\Lambda$ CDM model, the XCDM parameterization of the dark energy equation of state, and a slowly rolling dark energy scalar field with an inverse power-law potential. The constraints are restrictive, consistent with those derived from Type Ia supernova redshift-magnitude data, and complement those from galaxy cluster gas mass fraction versus redshift data.

关键词

dark energy constraints dark energy hubble tension and dark energy

引用

@article{arxiv.astro-ph/0607301,
  title  = {Cosmological Constraints from Hubble Parameter versus Redshift Data},
  author = {Lado Samushia and Bharat Ratra},
  journal= {arXiv preprint arXiv:astro-ph/0607301},
  year   = {2011}
}

备注

Minor changes, including an estimate for H_0. ApJL, in press

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