Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004head....8.0104v&link_type=abstract
American Astronomical Society, HEAD meeting #8, #01.04; Bulletin of the American Astronomical Society, Vol. 36, p.902
Astronomy and Astrophysics
Astronomy
Scientific paper
Groups and poor clusters are the locus of most galaxies in the present-day Universe and the building blocks from which clusters form. They accordingly occupy a significant place in the continuum of structure between isolated galaxies and rich clusters. Owing to the lower temperature of their intracluster gas, X-ray emission from groups produces strong lines from a broader range of elements than do hotter clusters. Here we show results from an examination of several X-ray bright groups, mostly from the Hickson, AWM, and MKW lists, relevant to issues of current interest in the study of both groups and clusters: the distribution of heavy elements, the presence and nature of X-ray cavities and their relation to radio observations, the presence of cooling cores, and X-ray signatures of recent galaxy interactions.
This work was supported in part by NASA grants GO2-3186X and GO4-5154X.
David Laurence P.
Forman William
Harris Daniel E.
Jones Christine
Kassim Namir E.
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