Galaxy Clusters as Giant Cosmic Laboratories

Galaxy Clusters as Giant Cosmic Laboratories Galaxy Clusters as Giant Cosmic Laboratories
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    Jan-Uwe Ness
    European Space Astronomy Centre (ESAC)
    phone: +34918131436
    fax: +34918131250

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  • Updated on 2012-01-21 11:49:00

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Galaxy clusters are interesting astrophysical laboratories to study large-scale physical processes and important probes to assess the structure and evolution of our Universe. X-ray observations provide the most detailed insight into structure, composition, and evolution of galaxy clusters.

Since the launch of the XMM-Newton and Chandra observatories, our understanding of galaxy clusters has impressively improved including paradigm changes like the physics of cooling cluster centres and the description of galaxy clusters as a tightly constrained self-similar family of objects. During this period, galaxy clusters have also helped to define the quite precisely described Concordance Cosmology Model, and they have shown how the intergalactic medium is enriched by heavy elements over the last half of the age of the Universe. Observations with XMM-Newton, Chandra and SUZAKU have been essential for this progress and after a little more than a decade, a detailed picture of galaxy clusters has crystallised, well worth to be critically reviewed and discussed at a topical workshop.


  • Dynamical and thermal structure of galaxy clusters and their ICM
  • Non-thermal processes in clusters
  • Cluster mass determination
  • Cluster scaling relation with emphasis on X-rays
  • AGN feedback in clusters
  • Chemical composition of the ICM
  • Comparison of X-ray, SZE and optical observations of clusters
  • The evolution of the cluster population with redshift
  • Galaxy clusters as cosmological probes