Luminosity Function in Local Clusters

Details Luminosity Function in Local Clusters Luminosity Function in Local Clusters

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop...25f&link_type=abstract

Spitzer Proposal ID #25

Physics

Scientific paper

We will obtain spectral energy distributions of large numbers of galaxies across the SIRTF wavelength range by mapping four local galaxy clusters with IRAC and MIPS. The four clusters: Coma, Hercules, A1367, and A2199, span a wide range of X-ray luminosity, cooling flow rates, and late vs. early type galaxy morphologies. Coma and A2199 will be mapped by MIPS under a MIPS GTO program. The maps will cover 30 by 30 arcmin, roughly one Mpc at these cluster distances, and one square degree in the case of Coma. The IRAC 3.6um map will reach to about L*+5, probing well into the dwarf galaxy regime. Dust emitting at 7.7um and in the far IR will also be revealed. Finally, a map reaching several magnitudes deeper will be obtained with IRAC over 10 x 10 arcmin regions centered on the peak of the cluster x-ray emission, to determine whether the cooling flows in these clusters are producing low mass stars or brown dwarfs.

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