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Physics World, 1998 Gamma-ray bursts are one of the top unsolved mysteries in astrophysics, alongside such burning issues as the nature of dark matter and the cosmological constant. We have known of the existence of gamma-ray bursts for over 25 years, but these short flashes of gamma rays have defied all our attempts to understand their causes and origin.
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OBSERVATIONS OF THE HIGHEST ENERGY GAMMA-RAYS FROM GAMMA-RAY BURSTS
The Ninth Marcel Grossmann Meeting, 2001EGRET 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 may extend the maximum energy to a few 100
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A-to-Z Guide to Thermodynamics, Heat and Mass Transfer, and Fluids Engineering, 2006
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Gamma Ray Sources and Techniques for Gamma Ray Radiology [PDF]
, 1953 J. J. Hirschfield +2 more
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