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Detection of High-Energy Gamma-Ray Emission during the X-ray flaring activity in GRB100728A
High Energy Astrophysical Phenomena · Submitted 28 Apr 2011
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim In the same time interval high energy emission is significantly detected by the Fermi/LAT.
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The abstract, sentence by sentence
We present the simultaneous Swift and Fermi observations of the bright GRB100728A and its afterglow. The early X-ray emission is dominated by a vigorous flaring activity continuing until 1 ks after the burst. In the same time interval high energy emission is significantly detected by the Fermi/LAT. Marginal evidence of GeV emission is observed up to later times. We discuss the broadband properties of this burst within both the internal and external shock scenarios, with a particular emphasis on the relation between X-ray flares, the GeV emission and a continued long-duration central engine activity as their power source.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present the simultaneous Swift and Fermi observations of the bright GRB100728A and its afterglow. | contribution 0.90 | 0.94 | 0.04 | asserted 0.99 |
| s1 | The early X-ray emission is dominated by a vigorous flaring activity continuing until 1 ks after the burst. | result 1.00 | 0.81 | 0.07 | asserted 1.00 |
| s2 | In the same time interval high energy emission is significantly detected by the Fermi/LAT. | result 1.00 | 0.91 | 0.37 | asserted 1.00 |
| s3 | Marginal evidence of GeV emission is observed up to later times. | result 1.00 | 0.90 | 0.11 | hedged possibility 0.85 |
| s4 | We discuss the broadband properties of this burst within both the internal and external shock scenarios, with a particular emphasis on the relation between X-ray flares, the GeV emission and a continued long-duration central engine activity as their power source. | interpretation 0.54 | 0.58 | 0.21 | unclear 0.67 |
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The paper
Original abstract
We present the simultaneous Swift and Fermi observations of the bright GRB100728A and its afterglow. The early X-ray emission is dominated by a vigorous flaring activity continuing until 1 ks after the burst. In the same time interval high energy emission is significantly detected by the Fermi/LAT. Marginal evidence of GeV emission is observed up to later times. We discuss the broadband properties of this burst within both the internal and external shock scenarios, with a particular emphasis on the relation between X-ray flares, the GeV emission and a continued long-duration central engine activity as their power source.
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