Gamma-Ray Burst observations with Fermi

TL;DR

This paper reviews seven years of Fermi mission observations of over 1600 gamma-ray bursts, highlighting their high-energy properties, unique features, and implications for GRB models.

Contribution

It provides a comprehensive overview of Fermi's GRB observations, emphasizing common and unique high-energy characteristics and discussing their physical implications.

Findings

Over 1600 GRBs detected by Fermi

More than 100 GRBs observed above 30 MeV

Insights into GRB temporal and spectral behaviors

Abstract

After seven years of science operation, the Fermi mission has brought great advances in the study of Gamma-ray Bursts (GRBs). Over 1600 GRBs have been detected by the Gamma-ray Burst Monitor, and more than 100 of these are also detected by the Large Area Telescope above 30 MeV. We will give an overview of these observations, presenting the common properties in the GRB temporal and spectral behavior at high energies. We will also highlight the unique characteristics of some individual bursts. The main physical implications of these results will be discussed, along with open questions regarding GRB modeling in their prompt and temporally-extended emission phases.