Maccarone, T. J. (Thomas J.), Torres, M. A. P., Britt, Christopher B. T., Greiss, S., Hynes, R. I., Jonker, P. G., Steeghs, D. (Danny), 1972-, Wijnands, R. and Nelemans, G.. (2012) Radio sources in the Chandra Galactic Bulge Survey. Monthly Notices of the Royal Astronomical Society, Vol.426 (No.4). pp. 3057-3069. ISSN 0035-8711

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Abstract

We discuss radio sources in the Chandra Galactic Bulge Survey region. By cross-matching the X-ray sources in this field with the NRAO VLA Sky Survey archival data, we find 12 candidate matches. We present a classification scheme for radio/X-ray matches in surveys taken in or near the Galactic plane, taking into account other multiwavelength data. We show that none of the matches found here is likely to be due to coronal activity from normal stars because the radio to X-ray flux ratios are systematically too high. We show that one of the source could be a radio pulsar, and that one could be a planetary nebula, but that the bulk of the sources are likely to be background active galactic nuclei (AGN), with many confirmed through a variety of approaches. Several of the AGN are bright enough in the near-infrared (and presumably in the optical) to use as probes of the interstellar medium in the inner Galaxy.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	X-ray sources, Galactic, Galactic bulges
Journal or Publication Title:	Monthly Notices of the Royal Astronomical Society
Publisher:	Wiley-Blackwell Publishing, Inc
ISSN:	0035-8711
Date:	11 November 2012
Volume:	Vol.426
Number:	No.4
Page Range:	pp. 3057-3069
Identification Number:	10.1111/j.1365-2966.2012.21782.x
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	United States. National Aeronautics and Space Administration (NASA), National Science Foundation (U.S.) (NSF), Nederlandse Organisatie voor Wetenschappelijk Onderzoek [Netherlands Organisation for Scientific Research] (NWO), University of Warwick, European Research Council (ERC)
Grant number:	AST-0908789 (NSF)
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URI:	http://wrap.warwick.ac.uk/id/eprint/52107

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