Cluster science from ROSAT to eROSITA

Abstract

Galaxy clusters are one of the important cosmological probes to test the consistency of the observable structure and evolution of our Universe with the predictions of specific cosmological models. We use results from our analysis of the X-ray flux-limited REFLEX cluster sample from the ROSAT All-Sky Survey to illustrate the constraints on cosmological parameters that can be achieved with this approach. The upcoming eROSITA project of the Spektrum-Roentgen-Gamma mission will increase these capabilities by two orders of magnitude and importantly also increase the redshift range of such studies. We use the projected instrument performance to make predictions on the scope of the eROSITA survey and the potential of its exploitation.

5 pages, 8 figures, accepted for publication in Astronomische Nachrichten; the proceedings of the XMM-Newton Science Workshop: "Galaxy Clusters as Giant Cosmic Laboratories" at ESAC, Madrid, Spain, 21-23 May 2012

References in corpus (4)

• Toward a halo mass function for precision cosmology: the limits of universality
• Chandra Cluster Cosmology Project III: Cosmological Parameter Constraints
• The ROSAT-ESO Flux Limited X-ray Galaxy Cluster Survey (REFLEX II) I. Newly identified X-ray luminous clusters at z>=0.2
• The REFLEX II galaxy cluster survey: power spectrum analysis

Cited by in corpus (1)

• Optical counterparts of ROSAT X-ray sources in two selected fields at low vs. high Galactic latitudes