Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21714423d&link_type=abstract
American Astronomical Society, AAS Meeting #217, #144.23; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
We present an analysis of Hubble Space Telescope ACS images of the nearby galaxies IC 10 and M 51 in which we determine the characteristics of optical sources that are coincident with X-ray point sources detected with the Chandra X-ray Observatory. For IC 10, we find optical counterparts for six sources consistent with B dwarf stars, with one of the sources likely coincident with an OB association. In M 51, there are twelve X-ray sources that have stellar counterparts with colors and magnitudes indicating O and B dwarfs as well as several early type supergiants. H-alpha images show several supernova remnants in M 51 that are coincident with X-ray point sources. We also present preliminary results on constructing discrete X-ray source luminosity functions segregated by class of optical counterpart.
Desjardins Tyler D.
Kilgard Roy E.
Prestwich Andrea H.
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