Distances to the sources of observed gamma-ray bursts

Details Distances to the sources of observed gamma-ray bursts Distances to the sources of observed gamma-ray bursts

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974natur.251..396s&link_type=abstract

Nature, Volume 251, Issue 5474, pp. 396-397 (1974).

Physics

25

Scientific paper

WE suggest that the brief, intense outbursts of hard X rays, or soft γ rays of cosmic origin which have been termed γ-ray bursts1 are mainly, though not necessarily entirely, of Galactic origin. More specifically, the γ-ray bursts reported so far2 seem to originate in the local (Orion) spiral arm of our Galaxy, at distances of, typically, several hundred parsec. If we assume that the sources radiate into 4π sr, the absolute luminosities are ~ 1039 erg per event. (It may be significant that this is of the order of the predicted Eddington limit radiation from accretion disks around collapsed stars.)

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