Entropy Fluctuations in Galaxy Groups

Details Entropy Fluctuations in Galaxy Groups Entropy Fluctuations in Galaxy Groups

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1313p&link_type=abstract

Chandra Proposal ID #04800451

Mathematics

Logic

Chandra Proposal Id #04800451

Scientific paper

It is clear from relationships between the morphology of galaxies in groups and the presence of hot intergalactic gas, that the state of the IGM is related to group evolution. Recent cosmological simulations show that long-lived features in the gas temperature and entropy distribution result from the individual evolutionary histories of groups. We aim to map such features with Chandra in three groups for which we find evidence of interesting features in ROSAT data. Combining these data with an ensemble of results from our cosmological simulations will enable us to use dispersion about the mean entropy properties for the first time, to constrain the individual histories of groups, and to explore the impact of these histories on the properties of their galaxies.

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