Dissemin is shutting down on January 1st, 2025

Published in

Hans Publishers, Astronomy & Astrophysics, 3(437), p. 899-904

DOI: 10.1051/0004-6361:20053060

Links

Tools

Export citation

Search in Google Scholar

Discovery of multiple ultra-luminous X-ray sources in the galaxy KUG 0214-057

Journal article published in 2005 by M. G. Watson, T. P. Roberts ORCID, M. Akiyama, Y. Ueda
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Red circle
Preprint: archiving forbidden
Red circle
Postprint: archiving forbidden
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

We report the serendipitous discovery of several unresolved X-ray sources lying in the prominent spiral arms of the galaxy KUG 0214-057 in XMM-Newton observations. The location of these X-ray sources strongly suggests that at least three, and possibly four, of these may be physically related to the galaxy. The luminosity of each of these sources at the distance of KUG 0214-057 is > 5 x 10^39 erg/s (0.3-10 keV), making each a strong candidate ultraluminous X-ray source (ULX). Using the ULXs as a metric implies that this relatively low-mass galaxy may be experiencing rather intense starburst activity. The serendipitous discovery of these ULXs suggests that such objects are not a negligible component of the overall extragalactic X-ray source population. ; Comment: Accepted by A&A (6th April). 6 pages, 4 figures