Investigating The Ultraviolet Environment of Ultraluminous X-ray sources

Details Investigating The Ultraviolet Environment of Ultraluminous X-ray sources Investigating The Ultraviolet Environment of Ultraluminous X-ray sources

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.7601w&link_type=abstract

American Astronomical Society Meeting 205, #76.01; Bulletin of the American Astronomical Society, Vol. 36, p.1472

Astronomy and Astrophysics

Astronomy

Scientific paper

The nature of ultraluminous X-ray sources (ULX), bright, non-nuclear X-ray sources with luminosities in excess of the Eddington limit for a neutron star, continues to be a topic of debate. One clue to their nature may be their environments. Many of these objects are associated with starburst galaxies, and a number have been found near HII regions. We have conducted an archival XMM-Newton study of the ULX population in 32 nearby (< 8 Mpc) galaxies. Using the OM UVW2/UVW1 images, we categorized the placement of the ULX relative to any nearby HII regions. Within our sample, we find roughly equal numbers of ULX associated with, outside of, and in absence of, HII regions. We further correlate X-ray spectral properties with the ULX environment.

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