XMM-Newton observation of the bursting pulsar GRO J1744-28 in quiescence

Details XMM-Newton observation of the bursting pulsar GRO J1744-28 in quiescence XMM-Newton observation of the bursting pulsar GRO J1744-28 in quiescence

2002-02-11

arxiv.org/abs/astro-ph/0202209v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures; to be published in A&A

Scientific paper

10.1051/0004-6361:20020223

The XMM-Newton X-ray observatory performed a pointed observation of the bursting pulsar GRO J1744-28 in April 2001 for about 10 ks during a program devoted to the scan of the Galactic center region. After the discovery of this source by BATSE in December 1995 during a very active bursting phase, it has been in quiescence since April 1997. We present here the first detection of GRO J1744-28 in its quiescent state at a position which is consistent with previous high-energy positions (but not consistent with a proposed IR counterpart). The observed luminosity of the source in quiescence is about 6 orders of magnitude weaker than the luminosity in outburst.

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