Search for gamma rays from Supernova 1987A at energies greater than 100 TeV

Details Search for gamma rays from Supernova 1987A at energies greater than 100 TeV Search for gamma rays from Supernova 1987A at energies greater than 100 TeV

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvl..60.1110b&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 60, March 21, 1988, p. 1110-1113. Research supported by the Inamori Foundation, I

Astronomy and Astrophysics

Astronomy

28

Energetic Particles, Gamma Ray Astronomy, Stellar Radiation, Supernova 1987A, Flux Quantization, Maximum Likelihood Estimates, Spectral Energy Distribution

Scientific paper

Ultrahigh-energy gamma rays emitted by Supernova 1987A are searched for with a new cosmic-ray facility installed at the Black Birch Range in New Zealand. The observations from October 13 to December 3, 1987 suggest no clear clustering of events around the direction of the supernova. It is concluded that an upper limit on the flux of gamma rays of energies greater than 100 TeV is 1.1 x 10 to the -12th/sq cm per sec (95 percent confidence limit) for a differential spectral index a = 2.0 and source distance d = 50 kpc. This value gives an upper bound on the gamma-ray luminosity of the supernova of 5.5 x 10 to the 38th erg/sec for 10 to the 14th to 10 to the 17th eV.

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