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Fermi/LAT observations of GRB 110625A

Published online by Cambridge University Press:  22 July 2013

P. H.T. Tam
Affiliation:
Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
A. K.H. Kong
Affiliation:
Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
Y.-Z. Fan
Affiliation:
Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China
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Abstract

We report γ-ray afterglow observations of GRB 110625A using Fermi’s Large Area Telescope (LAT) above 100 MeV. Gamma-ray emission was clearly detected using data taken between 180 s and 580 s after the burst. The GeV light curve differs from a power-law decay, and probably consists of two emission periods. Simultaneous Swift/XRT observations did not show flaring behaviors, distinguishing its origin of the extended GeV emission from the case of GRB 100728A.

Type
Research Article
Copyright
© EAS, EDP Sciences 2013

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