2003AIP conference proceedingsRequires access

Observations of the Highest Energy Gamma Rays from Gamma-Ray Bursts

B. L. Dingus

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Abstract

EGRET has extended the highest energy observations of gamma‐ray bursts to GeV gamma rays. Such high energies imply the fireball that is radiating the gamma rays has a bulk Lorentz factor of several hundred. However, EGRET only detected a few gamma‐ray bursts. GLAST will likely detect several hundred bursts and extend the maximum energy to a few 100 GeV. Meanwhile new ground based detectors with sensitivity to TeV gamma rays from gamma‐ray bursts are beginning operation.

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What this paper is about

EGRET has extended the highest energy observations of gamma‐ray bursts to GeV gamma rays. Such high energies imply the fireball that is radiating the gamma rays has a bulk Lorentz factor of several hundred. However, EGRET only detected a few gamma‐ray bursts. GLAST will likely detect several hundred bursts and extend the maximum energy to a few 100 GeV. Meanwhile new ground based detectors with sensitivity to TeV gamma rays from gamma‐ray bursts are beginning operation.

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Available abstract

EGRET has extended the highest energy observations of gamma‐ray bursts to GeV gamma rays. Such high energies imply the fireball that is radiating the gamma rays has a bulk Lorentz factor of several hundred. However, EGRET only detected a few gamma‐ray bursts. GLAST will likely detect several hundred bursts and extend the maximum energy to a few 100 GeV. Meanwhile new ground based detectors with sensitivity to TeV gamma rays from gamma‐ray bursts are beginning operation.

Key concepts: Egret, Physics, Gamma ray, Gamma-ray burst, Astrophysics, Lorentz factor, Energy (signal processing), Nuclear physics

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