Gamma-ray burst observations

Fishman, Gerald J.
June 2000
AIP Conference Proceedings;2000, Vol. 522 Issue 1, p179
Academic Journal
Gamma-ray bursts (GRBs) are the most luminous known objects in the Universe. Their brief, random appearance in the gamma-ray region had made their study difficult since their discovery, over thirty years ago. There is a rich diversity in the duration and morphology of GRB time profiles. The spectra are characterized by a smooth continuum, usually peaking in the range from ∼ 0.1 MeV to 1 MeV. The recent discovery of counterparts to gamma-ray bursts and afterglow radiation in other wavelengths has provided the long-sought breakthrough in the direct determination of their distance and luminosity. Delayed gamma-ray burst photons extending to GeV energies have been detected. © 2000 American Institute of Physics.


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