Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aipc..232..205b&link_type=abstract
IN: Gamma-ray line astrophysics; Proceedings of the International Symposium, Paris, France, Dec. 10-13, 1990 (A92-43619 18-90).
Astronomy and Astrophysics
Astrophysics
Gamma Ray Spectrometers, Imaging Spectrometers, Supernova 1987A, Balloon-Borne Instruments, Cobalt Isotopes, Compton Effect, Gamma Ray Spectra, Radioactive Isotopes
Scientific paper
Results on the continuum emission from SN1987A from two balloon flights of gamma-ray imaging spectrometer over Alice Springs, Australia, in the spring and fall of 1988 are presented. The durations of the two observations were 11.2 and 11.7 hours, respectively. The measured continuum spectra (95-2560 keV for the spring and 55-2560 keV for the fall) are consistent with Compton scattering of the Co-56 decay lines. The 10HMM model agrees well with continuum data in the energy dependence of the continuum both in the slope of the spectra and the step increases below the 2599, 1238, and 847 keV Co-56 decay lines.
Barthelmy Scott
Gehrels Neil
Leventhal Marvin
MacCallum Crawford J.
Teegarden Bonnard J.
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