The Assembly of Galaxy Groups

Details The Assembly of Galaxy Groups The Assembly of Galaxy Groups

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..993p&link_type=abstract

Chandra Proposal ID #03800474

Computer Science

Chandra Proposal Id #03800474

Scientific paper

The most interesting phase in the evolution of a galaxy group is the virialisation stage, at which the infall velocities of the galaxies are randomised and the interstellar gas compressed and heated. The violently fluctuating environment experienced by galaxies during this phase may have long-lasting effects on their properties. Such virialising groups appear to be quite rare, since the phase is transient, but we have identified three strong candidates from an extensive study of groups with ROSAT. We propose to obtain high quality spectral images of these with ACIS in order to study the way in which the intergalactic medium is heated, and the effects of strong interactions on galaxy properties.

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