NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-18 T03:31:07 PDT
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For refcode 2006MNRAS.367.1132G:
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NED Abstract

Copyright by Royal Astronomical Society. 2006MNRAS.367.1132G The ultraluminous X-ray sources in the high-velocity system of NGC1275 Gonzalez-Martin, O.; Fabian, A. C.; Sanders, J. S. Abstract. We report the results of a study of X-ray point sources coincident with the high-velocity system (HVS) projected in front of NGC1275. A very deep X-ray image of the core of the Perseus cluster, made with the Chandra X-ray Observatory, has been used. We find a population of ultraluminous X-ray sources [ULXs seven sources with L_X_(0.5 - 7.0 keV) > 7 x 10^39^ergs^-1^]. As with the ULX populations in the Antennae and Cartwheel galaxies, those in the HVS are associated with a region of very active star formation. Several sources have possible optical counterparts found on the Hubble Space Telescope (HST) images, although the X-ray brightest one does not. Absorbed power-law models fit the X-ray spectra, with most having a photon index between 2 and 3.
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