Gamma-ray observations of SN 1987A from Antarctica

Citations Over TimeTop 10% of 1989 papers

Abstract

We report the observation of gamma-ray lines from the direction of supernova 1987A with a germanium detector flown on a high-altitude balloon platform over Antarctica in 1988 January. Gamma rays at 844.1 +/- 1.0 and 1239.9 +/- 1.5 keV with fluxes 2.3 +/- 2.0 x 10^-3^ and 2.1 +/- 1.0 x 10^-3^ photons cm^-2^ s^-1^, respectively, are attributed to the radioactive decay of ^56^Co. Errors quoted do not include possible systematic effects.

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