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      Cluster science from ROSAT to eROSITA

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          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.

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          Author and article information

          Journal
          18 October 2012
          Article
          10.1002/asna.201211885
          1210.5132
          39292512-067e-4d51-ac84-bb3cdba7cac6

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          History
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          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
          astro-ph.CO

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