Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21914910r&link_type=abstract
American Astronomical Society, AAS Meeting #219, #149.10
Astronomy and Astrophysics
Astronomy
Scientific paper
Fermi-LAT has provided a unique new dataset of high energy observations of Gamma-ray Bursts, which has led to many recent theoretical advancements and challenges. We present an overview of the first 3 years of observations in the 100 MeV - 300 GeV LAT bandpass including the detection of 30 GRBs and limits on those not detected but within the LAT field-of-view. Several new features are common in the temporal and spectral behavior of these bursts including a delayed onset compared to the keV-MeV emission, an extra spectral power-law component sometimes in the high-energy spectrum, and extended emission lasting significantly longer than the lower-energy prompt emission possibly associated with the broadband afterglow.
Fermi/LAT
GBM Collaborations
Racusin Judith L.
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