Constraints on Scalar-Field Dark Energy from Galaxy Cluster Gas Mass Fraction versus Redshift

Details Constraints on Scalar-Field Dark Energy from Galaxy Cluster Gas Mass Fraction versus Redshift Constraints on Scalar-Field Dark Energy from Galaxy Cluster Gas Mass Fraction versus Redshift

2004-05-31

arxiv.org/abs/astro-ph/0405636v2

Astrophys.J. 612 (2004) L1-4

Astronomy and Astrophysics

Astrophysics

10 pages, 3 figures, Version accepted by ApJL, with minor revisions and new references

Scientific paper

10.1086/424037

We use the Allen et al. (2004) Chandra measurements of x-ray gas mass fraction of 26 rich clusters to place constraints on the scalar-field dark energy model with inverse power law potential energy density. The constraints are consistent with, and typically more constraining than, those from other cosmological tests, and mildly favor the Einstein cosmological constant limit of the dark energy model.

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