TY - JOUR
T1 - Radio sources in the Chandra Galactic Bulge Survey
AU - MacCarone, Thomas J.
AU - Torres, Manuel A.P.
AU - Britt, Christopher T.
AU - Greiss, Sandra
AU - Hynes, Robert I.
AU - Jonker, Peter G.
AU - Steeghs, Danny
AU - Wijnands, Rudy
AU - Nelemans, Gijs
PY - 2012/11/11
Y1 - 2012/11/11
N2 - 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.
AB - 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.
KW - Galaxies: active
KW - Galaxy: bulge
KW - Radio continuum: stars
KW - X-rays: stars
UR - http://www.scopus.com/inward/record.url?scp=84867850573&partnerID=8YFLogxK
U2 - 10.1111/j.1365-2966.2012.21782.x
DO - 10.1111/j.1365-2966.2012.21782.x
M3 - Article
AN - SCOPUS:84867850573
VL - 426
SP - 3057
EP - 3069
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
SN - 0035-8711
IS - 4
ER -