An imaging observation of SN 1987A at gamma-ray energies

Details An imaging observation of SN 1987A at gamma-ray energies An imaging observation of SN 1987A at gamma-ray energies

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...334l..87c&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 334, Nov. 15, 1988, p. L87-L90.

Astronomy and Astrophysics

Astronomy

46

Balloon-Borne Instruments, Gamma Ray Astronomy, Imaging Techniques, Supernova 1987A, Astronomical Maps, Gamma Ray Telescopes, Monte Carlo Method

Scientific paper

The Caltech imaging gamma-ray telescope was launched by balloon from Alice Springs, Australia for observations of SN 1987A during November 1987. The preliminary results presented here are derived from 8200 s of instrument live time on the supernova and 2500 s on the Crab Nebula and pulsar at a float altitude of 36 km. Images of the SN 1987A region at gamma-ray energies confirming that the bulk of the gamma-ray emission comes from the supernova and not from LMC X-1. These flux measurements are compared to recent predictions concerning the distribution of Co-56 in the supernova ejecta. The data are consistent with models invoking moderate mixing of core material into the envelope.

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