Spitzer Observations of an Off-Center Region of the Coma Cluster

Details Spitzer Observations of an Off-Center Region of the Coma Cluster Spitzer Observations of an Off-Center Region of the Coma Cluster

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20717709j&link_type=abstract

American Astronomical Society Meeting 207, #177.09; Bulletin of the American Astronomical Society, Vol. 37, p.1451

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the first results of Spitzer IRAC (Infrared Array Camera) observations of an off-center region in Coma, the nearest rich galaxy cluster (z=0.023). Studies of nearby clusters are vital as they provide unique laboratories for the study of the formation and evolution of galaxies across a variety of environments, ranging from the dense cores to the less dense outskirts. The IRAC observations presented here are for a 30'x50' field located approximately 40 arcminutes north-west from the center of Coma. With this unique dataset we have constructed a preliminary mid-IR (3-8 micron) luminosity function (LF) of the spectroscopically confirmed Coma member galaxies in this field. We also study the transformation between the mid-IR LF and the optical (R-band) LF.

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