The BeppoSAX View on the 2001 Reactivation of SGR 1900+14

Details The BeppoSAX View on the 2001 Reactivation of SGR 1900+14 The BeppoSAX View on the 2001 Reactivation of SGR 1900+14

2001-12-11

arxiv.org/abs/astro-ph/0112239v1

Astronomy and Astrophysics

Astrophysics

4 pages. To appear in "Neutron Stars in Supernova Remnants" (ASP Conference Proceedings), eds P. O. Slane and B. M. Gaensler

Scientific paper

After a couple of years of quiescence, the soft gamma repeater SGR 1900+14 suddenly reactivated on 18 April 2001, with the emission of a very intense, long and modulated flare, only second in intensity and duration to the 27 August 1998 giant flare. BeppoSAX caught the large flare with its Gamma Ray Burst Monitor and with one of the Wide Field Cameras. The Wide Field Cameras also detected X-ray bursting activity shortly before the giant flare. A target of opportunity observation was started only 8 hours after the large flare with the Narrow Field Instruments, composed of two 60-ks long pointings. These two observations show an X-ray afterglow of the persistent SGR 1900+14 source, decaying with time according to a power law of index -0.6.

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