Optical Searches of Gamma-Ray Burst Locations

Details Optical Searches of Gamma-Ray Burst Locations Optical Searches of Gamma-Ray Burst Locations

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981msngr..24...11c&link_type=abstract

The Messenger, No.24, P. 11, 1981

Physics

2

Scientific paper

First discovered in 1973, gamma-ray bursts are cosmic events of very short duration, some of them lasting only a few tenths of a second, whose origin has since been a puzzle. They are now being detected mainly in the hard X-ray range (100-500 keV) by omnidirectional scintillator detectors placed on board spacecraft located in different parts of the solar system (Venera 11 an 12, Pioneer Venus Orbiter, Helios 2, Prognoz 7, ISEE-3 and the Vela satellites).* When a burst is detected by at least 3 spacecraft, triangulation over interplanetary distances is possible thraugh arrival-time analysis of the burst time-histories recorded by the different detectors. Observations by as many as 7 different prabes now offer the possibility of unambiguously localizing gamma-ray bursts on the sky to arc-minutes, and sometimes to tens of areseconds.

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