Results of gamma-ray observations of SN1987A conducted over a period of 800 days using balloon-borne high-resolution germanium detectors are discussed. Most of the measurements show red-shifted line centroids (about 500 km/s) and broadened profiles, contradicting the standard homogeneous and spherically symmetric models, which predict blue-shifted lines and narrower line widths. To explain this apparent contradiction, it may be necessary to invoke fragmentation and nonspherical geometries.
Gamma-ray lines from SN1987A
Advances in Space Research ; 11 , 8, 19
1991-01-01
Miscellaneous
No indication
English
Elsevier | 1991
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