The 2nd Fermi GBM Gamma-Ray Burst Catalog: The First Four Years

Understand

This is the second of a series of catalogs of gamma-ray bursts (GRBs) observed with the Fermi Gamma-ray Burst Monitor (GBM).

• It extends the first two-year catalog by two more years, resulting in an overall list of 953 GBM triggered GRBs.
• The intention of the GBM GRB catalog is to provide information to the community on the most important observables of the GBM detected GRBs.
• For each GRB the location and main characteristics of the prompt emission, the duration, peak flux and fluence are derived.