Physics
Scientific paper
Aug 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aipc.1358..221z&link_type=abstract
GAMMA RAY BURSTS 2010. AIP Conference Proceedings, Volume 1358, pp. 221-224 (2011).
Physics
Telescopes, Spectral Analysis, Gamma-Rays, Diffusion, X- And Gamma-Ray Telescopes And Instrumentation, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification, Gamma-Ray, Convection, Turbulence, And Diffusion
Scientific paper
GRB100116A was detected by both the Large Area Telescope (LAT) and Gamma-ray Burst Monitor (GBM) onboard the Fermi telescope. The GBM lightcurve showed two peaks, a small initial peak at 21:32:36.00 (UT) and a second, stronger peak about 70 seconds later; the LAT detection was coincident with the second peak. Thus, this burst had a very long lag between the LAT (>100 MeV) emission and the GBM trigger--the longest to date. Detailed spectral analysis along with simulations have shown that GBM emission is best fit by an exponentially cut-off power law making the extrapolation of this emission to LAT energies unlikely. Therefore, the observed excess in the LAT was somewhat surprising. We present a spectral and temporal study of the prompt and afterglow emission from 8 keV to 200 GeV.
Burgess Michael J.
Zhu Sylvia
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