GRB 030131: a long Gamma-Ray Burst detected with INTEGRAL during a satellite slew

Details GRB 030131: a long Gamma-Ray Burst detected with INTEGRAL during a satellite slew GRB 030131: a long Gamma-Ray Burst detected with INTEGRAL during a satellite slew

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004nuphs.132..316g&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 132, p. 316-319.

Physics

Nuclear Physics

Scientific paper

A long Gamma-Ray Burst (GRB) was detected with the instruments on board the INTEGRAL satellite on January 31 2003. Although most of the GRB, which lasted ~150 seconds, occurred during a satellite slew, the automatic software of the INTEGRAL Burst Alert System was able to detect it in near-real time. Here we report the results obtained with the IBIS instrument, which detected GRB 030131 in the 15 keV - 200 keV energy range, The burst displays a complex time profile with numerous peaks. The peak spectrum can be described by a single power law with photon index Γ~=1.7 and has a flux of ~2 photons cm-2 s-1 in the 20-200 keV energy band. The high sensitivity of IBIS has made it possible for the first time to perform detailed time-resolved spectroscopy of a GRB with a fluence of 7×10-6 erg cm-2 (20-200 keV).

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