In the first year since the launch of the Fermi Observatory, the Gamma-ray Burst Monitor (GBM) has detected over 250 gamma-ray bursts (GRBs). Besides GRBs, GBM has triggered on other transient sources, such as soft gamma-ray repeaters and terrestrial gamma-ray flashes. Here we present an overview of the capabilities and scientific goals of the GBM, both by itself and in conjunction with the Large Area Telescope (LAT). The wide energy coverage of the two instruments gives an unprecedented view of the broadband emission and energetics of GRBs, spanning almost 7 decades in energy. Out of a total of 9 LAT GRBs detected up to July 31, 2009, 8 showed extended emission. GBM spectral analysis results from two such events, GRBs 090323 and 090328, are discussed.
The Fermi Gamma-Ray Burst Monitor: Results from the first year and spectral analysis of GRB 090323 and GRB 090328
BISSALDI, ELISABETTA;
2010-01-01
Abstract
In the first year since the launch of the Fermi Observatory, the Gamma-ray Burst Monitor (GBM) has detected over 250 gamma-ray bursts (GRBs). Besides GRBs, GBM has triggered on other transient sources, such as soft gamma-ray repeaters and terrestrial gamma-ray flashes. Here we present an overview of the capabilities and scientific goals of the GBM, both by itself and in conjunction with the Large Area Telescope (LAT). The wide energy coverage of the two instruments gives an unprecedented view of the broadband emission and energetics of GRBs, spanning almost 7 decades in energy. Out of a total of 9 LAT GRBs detected up to July 31, 2009, 8 showed extended emission. GBM spectral analysis results from two such events, GRBs 090323 and 090328, are discussed.Pubblicazioni consigliate
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