出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present results of a cross-calibration study between the Fermi Gamma-Ray Burst Monitor (GBM) and the INTEGRAL Soft Gamma-Ray Imager ISGRI. For the study, the spectral analysis of a sample of 4 Gamma-Ray Bursts (GRBs) simultaneously observed by both instruments were taken into consideration. Spectral models were fit separately for GRB081226B, GRB090107B, GRB090625B and GRB090704 using data sets from both instruments. A joint spectral model was then fit to the data to calculate the normalisation factor between the spectral models. With the overlap in lifetimes of the Fermi and INTEGRAL satellites and given that the detection rate for a common burst is 1 every 4 months, more bursts will be added to the sample in future years
