Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21543611w&link_type=abstract
American Astronomical Society, AAS Meeting #215, #436.11; Bulletin of the American Astronomical Society, Vol. 42, p.386
Astronomy and Astrophysics
Astronomy
Scientific paper
We present Spitzer MIPS 24µm images of a complete, X-ray-selected sample of 41 galaxy clusters at moderate redshift (0.35< z <0.90). The 24µm images are sufficiently deep to detect Luminous Infrared Galaxies (LIRGs) over the entire redshift range. We use IRAC and ground-based grizK data to help separate cluster members from background galaxies. Similar to the field, the fraction of cluster galaxies with dusty star formation increases with redshift. Our sample is the largest X-ray cluster sample at moderate redshift analyzed to date. In particular, this sample is large enough to probe the dependence of star formation on both redshift and cluster mass (as determined from Chandra data). Companion posters investigate the evolution of luminosity functions and scaling relations in these clusters.
Arnold Robert L.
Finn Rose A.
Rines Ken
Svoboda Brian E.
Vikhlinin Alexey
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