Observations of GRBs at high-energy: the first Fermi LAT catalog, and a new and improved detection algorithm
Abstract
The recently-published first Fermi Large Area Telescope (LAT) Gamma-Ray Burst (GRB) catalog is a systematic study of temporal and spectral features of GRBs at high energies and covers the first 3 years of the Fermi mission. This study has led to several recent theoretical advances and challenges. We present an overview of these with particular emphasis on the newly-found temporal and spectral behaviors that are in common among GRBs with high-energy emission, comparing our results with theoretical expectations. The second LAT GRB catalog is currently in preparation. It will use a new detection algorithm that increases the detection rate by up to 40% with respect to the first catalog. We will review the improvement and preliminary results from this investigation.
- Publication:
-
American Astronomical Society Meeting Abstracts #223
- Pub Date:
- January 2014
- Bibcode:
- 2014AAS...22333004V