作者: M. Ackermann , M. Ajello , K. Asano , M. Axelsson , L. Baldini
DOI: 10.1088/0067-0049/209/1/11
关键词:
摘要: In three years of observations since the beginning nominal science operations in August 2008, Large Area Telescope (LAT) on board Fermi Gamma Ray Space has observed high-energy (>20 MeV) \gamma-ray emission from 35 gamma-ray bursts (GRBs). Among these, 28 GRBs have been detected above 100 MeV and 7 ~ 20 MeV. The first Fermi-LAT catalog is a compilation these detections provides systematic study for time. To generate catalog, we examined 733 by Gamma-Ray Burst Monitor (GBM) processed each them using same analysis sequence. Details methodology followed LAT collaboration GRB are provided. We summarize temporal spectral properties LAT-detected GRBs. also discuss characteristics such as its delayed onset longer duration compared to GBM, power-law decay at late times, fact that it dominated component appears addition usual Band model.