Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel.1294....1p&link_type=abstract
The Astronomer's Telegram, #1294
Astronomy and Astrophysics
Astronomy
9
X-Ray, Novae
Scientific paper
On behalf of the XMM-Newton/Chandra M31 nova monitoring collaboration (see http://www.mpe.mpg.de/~m31novae/xray/ao6/index.php) we searched in a 20ks Chandra HRC-I observation of M31 starting on 2007-11-07.64 UT for X-ray emission from optical novae. We detected a new source consistent with the position of the M 31 globular cluster Bol 111 at the edge of the HRC-I field of view. In the following 20ks observation of the HRC-I monitoring campaign starting on 2007-11-17.76 UT (with different roll angle the source was again detected with 329+-56 cts at an off-axis angle of 15.9 arcmin in the Chandra HRC-I at coordinates RA(J2000) 00:42:33.29, Dec(J2000) +41:00:26.4, with centroid position errors of 0.5" and 0.4", respectively (subject to the standard bore-sight correction and systematic shifts at the very far off-axis angle) confirming the identification with Bol 111.
Burwitz Vadim
Greiner Jochen
Haberl Franck
Henze Matthias
Pietsch Wolfgang
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