Small-Scale Regular Structures in Supernovae Progenitors

Details Small-Scale Regular Structures in Supernovae Progenitors Small-Scale Regular Structures in Supernovae Progenitors

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jkass..29..215t&link_type=abstract

Journal of the Korean Astronomical Society, v. 29 Supplement, p.S215

Astronomy and Astrophysics

Astronomy

Scientific paper

The wind-formed features observed in the early SNe spectra type II and Ia give an evidence of the existence of an ellipsoidal shell formed by the stellar wind prior to the explosion. Such non-spherical shell can occur not only at scales of parsec (the case of SN 1987A progenitor), but at the scales of 1000 times less. Such shells can bet the result of the radial pulsation. The prolate multi-shell structures are interpreted as a result of a pulsation processes with recurrent wind ejections with velocity increasing.

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