The possible nature of the gamma-ray source SG 195+4

Details The possible nature of the gamma-ray source SG 195+4 The possible nature of the gamma-ray source SG 195+4

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981izssr..45..626v&link_type=abstract

(Evropeiskii Simpozium po Kosmicheskim Lucham, 7th, Leningrad, USSR, Sept. 15-19, 1980.) Akademiia Nauk SSSR, Izvestiia, Seriia

Astronomy and Astrophysics

Astronomy

Gamma Ray Astronomy, Pulsars, Supernova Remnants, Supernovae, Crab Nebula, Explosions, Radio Sources (Astronomy), Stellar Magnitude, Stellar Spectra

Scientific paper

Observational data on the peculiar gamma-ray source SG 195+4 are examined in the light of the proposition that there is a physical connection between this source and a supernova explosion of the year 437. It is found that the available data do not contradict the hypothesis that SG 195+4 is a supernova remnant associated with the explosion of 437. In the radio frequency range the object may be a weak analog of G 21.5-0.9. In the optical range it can appear as an extended object of 16-17 stellar magnitudes with a continuous spectrum.

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