Gamma-Ray Observations of SN 1987A from Antarctica
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1989
- DOI:
- Bibcode:
- 1989ApJ...342L..71R
- Keywords:
-
- Gamma Ray Astronomy;
- Supernova 1987a;
- Antarctic Regions;
- Astronomical Spectroscopy;
- Spectral Emission;
- Space Radiation;
- GAMMA RAYS: GENERAL;
- STARS: SUPERNOVAE