The Galaxies in Coma: A Complete Sample of X-ray Observed Galaxies in the Local Universe

Computer Science

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Chandra Proposal Id #05600481

Scientific paper

Clusters of galaxies provide ideal environments for the detailed study of formation and evolution of galaxies. There are overdensities of all types of galaxies, and in particular, ones which exhibit optical spectroscopic signatures of active or recent star-formation. There exist high quality optical spectroscopic data which allows for the measurement of quantities such as star formation activity and metallicity. We may thus test recent results that X-ray luminosity may in some cases serve as a direct measure of star formation rate and construct an X-ray luminosity function of normal galaxies. We propose two 65 ks observations in two off-center locations in Coma to make efficient study of a highly complete sample of optically-selected galaxies.

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