Physics
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop..157p&link_type=abstract
XMM-Newton Proposal ID #04042408
Physics
Galaxies, Galactic Surveys, Ugc8831, Ugc12520, Ugc5335, Ugc12734, Ugc6351, Ugc12312, Ugc4713, Ugc6910, Xmm-Newton Proposal 04042408
Scientific paper
The well-established X-ray/FIR luminosity correlation suggests that X-ray luminosity may be a star-formation rate (SFR) indicator. However recent work has shown that there is some uncertainty concerning the slope and normalization of X-ray/SFR correlation. It is likely that the variation observed is due in part to biases in the samples studied to date. We propose to observe an optically-selected, local sample of galaxies to determine the X-ray/SFR correlation in an unbiased fashion, using extinction-corrected H-alpha luminosities, the "gold standard" SFR indicator. The precise value of this correlation will be a constraint on galaxy evolution models, particularly concerning the evolution of massive stars and the efficiency of heating the ISM.
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