In preparation for the Second LAT Gamma-Ray Burst (GRB) catalog, we explore the use of the LAT low-energy (LLE) data selection to detect bursts with gamma-ray energy below 100 MeV. Here we present the sample of GRBs that are detected at these energies through a Bayesian Block analysis of all Fermi Gamma-ray Burst Monitor (GBM) triggers collected in 8 years of Fermi mission. In particular, we compare the temporal characteristics of this sample of GRBs with those of the brightest bursts detected above 1 MeV by the GBM. Finally, we examine the properties of a subset of events which are not detected above 100 MeV (LLE-only GRBs).
Exploring the low-energy domain of LAT-detected GRBs / Bissaldi, E.; Omodei, N.; Vianello, G.; Kocevski, D.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - ELETTRONICO. - 312:(2017). (Intervento presentato al convegno 7th International Fermi Symposium, IFS 2017 tenutosi a Garmisch-Partenkirchen (Germany) nel 2017).
Exploring the low-energy domain of LAT-detected GRBs
Bissaldi, E.
;
2017-01-01
Abstract
In preparation for the Second LAT Gamma-Ray Burst (GRB) catalog, we explore the use of the LAT low-energy (LLE) data selection to detect bursts with gamma-ray energy below 100 MeV. Here we present the sample of GRBs that are detected at these energies through a Bayesian Block analysis of all Fermi Gamma-ray Burst Monitor (GBM) triggers collected in 8 years of Fermi mission. In particular, we compare the temporal characteristics of this sample of GRBs with those of the brightest bursts detected above 1 MeV by the GBM. Finally, we examine the properties of a subset of events which are not detected above 100 MeV (LLE-only GRBs).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
