Spectral analysis of GRB with the gamma–ray burst monitor on–board BeppoSAX

¹ Istituto TeSRE, C.N.R., Via Gobetti 101, Bologna, Italy
² Dip. Fisica, Universita' Ferrara, Via Paradiso 12, Ferrara, Italy
³ Istituto Astrofisica Spaziale, C.N.R., Via E. Fermi 21, Frascati, Italy
⁴ Istituto Fisica Cosmica e Applicazioni all'Informatica, C.N.R., via Ugo La Malfa 153, Palermo, Italy
⁵ Sezione Neutronica, Div. Fusione–ENEA, Via E. Fermi 45, Frascati, Italy

Received: 29 December 1998
Accepted: 17 May 1999

Abstract

Despite the difficulties due to the location of the experiment at the center of the scientific payload, efforts have been made to determine BeppoSAX Gamma–Ray Burst Monitor detectors response functions by means of extensive on–ground calibrations, Monte Carlo simulations and in–flight testing. Satisfactory results have been obtained particularly for the two detectors co–aligned with the two Wide Field Cameras (WFC, 1.5-26 keV) on–board the same satellite, allowing nearly unprecedented broad band (1.5-700 keV) spectral analysis of events detected by both experiments.