Revised Position of the X-ray Source near the Nucleus of M31

Details Revised Position of the X-ray Source near the Nucleus of M31 Revised Position of the X-ray Source near the Nucleus of M31

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.4909p&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #49.09; Bulletin of the American Astronomical Society, Vol. 29, p.1292

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We have determined a more accurate position for the x-ray source near the nucleus of M31, based on analysis of new ROSAT HRI observations and re-analysis of earlier ROSAT and Einstein HRI observations of the region. Our revised position is ~ 1.6({'}{'}) south of the nuclear radio source discovered by Crane, Dickel, and Cowan (ApJ, 390, L9) and includes the radio source in its ~ 2({'}{'}) radius, 99% error circle. Given the local x-ray source density, the chance occurrence of an x-ray source brighter than ~ 10(36) erg s(-1) is ~ 2%. Analysis of the superposition of three deep, ROSAT HRI observations also indicates the presence of a previously uncataloged source ~ 17({'}{'}) to the east of the nuclear source.

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