A large catalogue of ultraluminous X-ray source candidates in nearby galaxies
Walton, D.J.; Gladstone, J.C.; Roberts, T.P.; Fabian , A.C.
Professor Tim Roberts firstname.lastname@example.org
Since their discovery, Ultraluminous X-ray sources (ULXs) have attracted attention due to their combination of extreme luminosities and extra-nuclear locations. However, they are a fairly rare phenomenon, and attempts to investigate the general properties of the population have been hindered by a relative lack of known sources. Here, we present a large catalogue of ULX candidates including 655 detections of 475 discrete sources, based on the 2XMMSerendipitous Survey. To demonstrate the potential of such a resource, we present some scientific analysis of this population, focusing on the spectral turnover seen, often at ∼6 keV, in the highest quality ULX data. We also demonstrate how the recent reflection and Comptonisation interpretations of this feature may be distinguished observationally in the future, specifically using NGC4517 ULX1, a previously unanalysed source with high quality data, as an example case.
Walton, D., Gladstone, J., Roberts, T., & Fabian, A. (2011). A large catalogue of ultraluminous X-ray source candidates in nearby galaxies. Astronomical Notes, 332(4), 354-357. https://doi.org/10.1002/asna.201011498
|Journal Article Type||Article|
|Publication Date||May 1, 2011|
|Deposit Date||Jan 30, 2012|
|Peer Reviewed||Peer Reviewed|
|Keywords||Black hole physics, X-rays, Binaries.|
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