Computer Science
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40562r&link_type=abstract
Spitzer Proposal ID #40562
Computer Science
Scientific paper
X-ray underluminous clusters compose about half of the known cluster population, but their star formation is rarely studied. Their lower X-ray luminosities, compared with expectations from the scaling relation between X-ray luminosity and virial mass traced by the X-ray-selected clusters, are probably a result of the intracluster gas still being in the process of infalling and suggest they may be nascent clusters. The particular forming stage of the X-ray underluminous clusters may result in very different star formation properties when compared with well relaxed, X-ray luminous clusters. We have found some tentative evidence showing there is more star formation in these clusters. In this proposal, we will study star formation in 4 X-ray underluminous clustersat 24 microns and compare it with that in X-ray luminous clusters. This comparison will help us determine the mechanisms that suppress the star formation in the X-ray luminous clusters.
Bai Lianfa
Marcillac Delphine
Rieke George
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