Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...193l..11r&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 193, no. 1-2, March 1988, p. L11, L12.
Astronomy and Astrophysics
Astronomy
14
Energetic Particles, Gamma Ray Astronomy, Stellar Radiation, Supernova 1987A, Energy Spectra, Flux Quantization, Stellar Evolution
Scientific paper
Results of measurements on SN 1987A during November 1987 are presented. It is shown that the supernova did not start to radiate observable VHE gamma-rays during the observations which were made in November 1987. For this epoch it implies that the central part of the supernova may be denser than assumed in various models up to now. It may also indicate a very steep energy spectrum with a differential power law index larger than 2.4.
de Jager Ocker C.
Nel H. I.
North A. R.
Raubenheimer Christo B.
van Urk G.
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