Barrel-shaped supernova remnants

Details Barrel-shaped supernova remnants Barrel-shaped supernova remnants

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...183..118k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 183, no. 1, Sept. 1987, p. 118-128.

Astronomy and Astrophysics

Astronomy

81

Astronomical Maps, Supernova Remnants, Morphology, Statistical Analysis, X Ray Astronomy

Scientific paper

The authors suggest that in many supernova remnants the three-dimensional distribution of emission is barrel-shaped, confined to the "staves", and with little or no emissivity in the "end-caps". Two excellent examples are examined in detail. Estimates are given of the wall thickness, and limits are set on the emissivity of the end-caps. Maps of 70 well-resolved remnants are used to examine the incidence of the barrel-shaped morphology. From the statistics it is argued that the majority of supernova remnants fall into the barrel category. Some mechanisms that might be responsible for this appearance are suggested.

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