SN 1987A - Limits to 400 GeV gamma-ray emission

Details SN 1987A - Limits to 400 GeV gamma-ray emission SN 1987A - Limits to 400 GeV gamma-ray emission

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...333l..19c&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 333, Oct. 1, 1988, p. L19-L21. SERC-supported research.

Astronomy and Astrophysics

Astrophysics

19

Gamma Rays, Pulsars, Supernova 1987A, Luminosity, Photons, Radioactive Decay

Scientific paper

If a pulsar remains in the center of the expending shell of SN 1987A, then it is possible that it will be seen first in very high energy gamma rays once the debris has cleared. A search for 400 GeV gamma rays from SN 1987A has been conducted using the Narrabri gamma-ray telescope, starting with a fortuitous observation within 5 hr of the core collapse in 1987 February, through to a more extensive program of observations up to 1988 April. The pulsar, if present, has not been detected yet. A luminosity limit of 4×1038ergs s-1 was obtained for the emission of gamma rays of energy greater than 400 GeV immediately following the collapse. In 1988 January - February a limit of 7×1037ergs s-1 has been placed on the luminosity.

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