Gamma-ray observations of SN 1987A from Antarctica

Details Gamma-ray observations of SN 1987A from Antarctica Gamma-ray observations of SN 1987A from Antarctica

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...342l..71r&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 342, July 15, 1989, p. L71-L73.

Astronomy and Astrophysics

Astronomy

27

Gamma Ray Astronomy, Supernova 1987A, Antarctic Regions, Astronomical Spectroscopy, Spectral Emission

Scientific paper

Gamma-ray lines from the direction of supernova 1987A have been observed with a Ge detector flown on a high-altitude balloon platform over Antarctica in January 1988. Gamma rays at 844.1 + or - 1.0 and 1239.9 + or - 1.5 keV, with fluxes 0.0023 + or - 0.002 and 0.0021 + or - 0.001 photons/sq cm sec, respectively, are attributed to the radioactive decay of Co-56. Errors quoted do not include possible systematic effects.

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