Galaxy Cluster Gas Mass Fraction and Hubble Parameter versus Redshift Constraints on Dark Energy
نویسنده
چکیده
Galaxy cluster gas mass fraction versus redshift data (Allen et al. 2004) and Hubble parameter versus redshift data (Simon et al. 2005) are used to jointly constrain dark energy models. These constraints favor the Einstein cosmological constant limit of dark energy but do not strongly rule out slowly-evolving dark energy. Subject headings: cosmology: cosmological parameters — cosmology: observations — X-rays: galaxies
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تاریخ انتشار 2008