Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984stin...8526588j&link_type=abstract
Presented at the 6th Quantum Theory and the Struct. of Time and Space Symp., Tutzing, West Germany, 2-5 Jul. 1984
Astronomy and Astrophysics
Astronomy
Extragalactic Radio Sources, Gamma Ray Bursts, Intergalactic Media, Neutron Stars, Gamma Rays, Radio Astronomy, Supernova Remnants
Scientific paper
Detectors of gamma-rays carried by satellites and later by high-flying balloons showed the existence of events lasting from 15 milliseconds to 100 seconds, arriving from all directions in space. A few hundred events were observed in a little more than a decade. The energy of gamma-rays range from a few kilovolts to millions of volts. It is indicated that considerable energy may be carried in some cases even above 10 MeV. The bulk of the energy appeared to be emitted between 100 and 200 keV. The simple facts about intensity distribution are compatible with two extreme assumptions but exclude intermediate hypotheses. Either the events occur in the galaxy in a region smaller than the thickness of the galaxy or they are of extragalactic origin and come from distant galaxies. In case of an extragalactic origin, the neutron star must attract and convert, about 2 x 10(30) grams or 10(-3) of the solar mass. It is the size of such events which deterred a detailed discussion of this alternative.
Johnson Michael
Teller Edward
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