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

Preprint

14 July 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0405636

Abstract

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.

Keywords

FIELD DARK ENERGY
SCALAR FIELD DARK
GALAXY CLUSTER
MASS FRACTION
CLUSTER GAS
GAS MASS

All Related Versions

Version 1, 2004-05-31, ArXiv
Version 2, 2004-07-14, ArXiv
Published version: The Astrophysical Journal, 612 (1), L1.

This publication has 0 references indexed in Scilit: