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 Γ1.7 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).

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

FRONTERA, Filippo;
2004

Abstract

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 Γ1.7 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).
2004
Götz, D; Mereghetti, S; Hurley, K; Deluit, S; Feroci, M; Frontera, Filippo; Fruchter, A; Gorosabel, J; Hartmann, D. H.; Hjorth, J; Hudec, R; Mirabel, I. F.; Pian, E; Pizzichini, G; Ubertini, P; Winkler, C.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/525262
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