The Local Environments of Ultra-Luminous X-Ray Sources in Interacting Galaxies

Details The Local Environments of Ultra-Luminous X-Ray Sources in Interacting Galaxies The Local Environments of Ultra-Luminous X-Ray Sources in Interacting Galaxies

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21822904s&link_type=abstract

American Astronomical Society, AAS Meeting #218, #229.04; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

In the last several years, the Chandra X-Ray Observatory has discovered hundreds of ultra-luminous X-ray (ULX) point sources in nearby galaxies. These may be either intermediate mass (100 - 1000 solar mass) black holes or stellar mass black holes with anisotropic X-ray emission. To help distinguish between these possibilities, we are conducting a statistical analysis of the local environments of a sample of several hundred ULXs in nearby interacting galaxies. Using GALEX UV, SDSS optical, and Spitzer IR images, we investigate the stellar populations within the galaxies in the local vicinity of the ULXs. We also investigate whether the ULXs are more likely to be found in tidal features or in the inner disks of these galaxies. This research is supported by NASA Chandra grant AR9-0010A.

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