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27 April 2024

» arxiv » astro-ph/0305452

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Yet another galaxy identification for an ultraluminous X-ray source
N. Masetti ; L. Foschini ; L.C. Ho ; M. Dadina ; G. Di Cocco ; G. Malaguti ; E. Palazzi ;
Date:	23 May 2003
Journal:	Astron.Astrophys. 406 (2003) L27-L32
Subject:	astro-ph
Abstract:	We report on the identification of the optical and infrared counterparts of the ultraluminous X-ray source (ULX) XMMU J121214.5+131248 (NGC4168-ULX1). The optical spectrum yields a redshift of z=0.217, which implies that the ULX is not associated with the nearby galaxy NGC 4168, but rather with a background object. Optical spectral line ratios and the spectral energy distribution constructed from the available data indicate that the source is likely a starburst nucleus.
Source:	arXiv, astro-ph/0305452
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