Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The early high-energy afterglow emission from Short GRBs   We calculate the high energy afterglow emission from short Gamma-Ray Bursts
(SGRBs) in the external shock model. There are two possible components
contributing to the high energy afterglow: the electron synchrotron emission
and the synchrotron self-Compton (SSC) emission. We find that for typical
parameter values of SGRBs, the early high-energy afterglow emission in 10
MeV-10 GeV is dominated by the synchrotron emission. For a burst occurring at
redshift z =0.1, the high-energy emission can be detectable by Fermi LAT if the
blast wave has an energy E>=10^51 ergs and the fraction of energy in electrons
is \epsilon_e>=0.1 . This provides a possible explanation for the high energy
tail of SGRB 081024B.

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The categories of this paper are: hep-th
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-alg
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The categories of this paper are: nlin
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The categories of this paper are: stat
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph