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Organized by: Prof. Lu Lu

The Fermi view of Gamma-Ray Bursts & the curious case of GW 150914
Date: Friday, November 18th
Time: 2:00 pm
Place: 5280 Chamberlin Hall
Speaker: Elisabetta Bissaldi , Politecnico & INFN Bari
Abstract: I'll give a brief overview of Gamma-Ray Bursts (GRBs) observations performed over the past 8 years by the two instruments on-board the Fermi satellite, namely the Gamma-Ray Burst Monitor (GBM) and the Large Area Telescope (LAT).<br><br>
In this period of time, GBM has triggered and located on average approximately two GRBs every three days. The most recent results are summarized in the latest two catalogs provided by the Fermi GBM science team, namely the third GBM GRB catalog and the first GBM time-resolved spectral catalog.<br><br>
Moreover, the Fermi LAT science team has been recently performing an extensive search for GRBs at high energies (>100 MeV) featuring a detection efficiency more than 50% better than previous works, and returning more than 130 detections.<br><br>
Finally, I'll present the GBM and LAT follow-up of the LIGO Gravitational Wave event GW 150914, focusing on the GBM detection of a weak transient event, close in time to the LIGO one. Future joint observations of GW events by LIGO/Virgo and Fermi could reveal whether the weak transient reported by GBM is a plausible counterpart to GW150914 or a chance coincidence, and will further probe the connection between compact binary mergers and short GRBs.
Host: Justin Vandenbroucke
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