Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..78..105i&link_type=abstract
Astrophysics and Space Science, vol. 78, no. 1, Aug. 1981, p. 105-122.
Astronomy and Astrophysics
Astrophysics
21
Dynamic Models, Stellar Atmospheres, Stellar Envelopes, Stellar Models, Supernovae, Thermonuclear Explosions, Carbon, Detonation Waves, Light Curve, Neutrinos, Oxygen, Stellar Mass
Scientific paper
It is assumed that a compact structure of a low-mass TYPE I presupernovae is an essential feature of the hydrodynamical problem dealing with the supernova Type I (SNI) envelope outbursts. This structure is characterized by a degenerate carbon-oxygen core, which suffers a thermonuclear explosion of carbon fuel, and by a compact low-mass envelope having an external radius of approximately 10 to the 9th cm. The parameters of this hydrostatic envelope are specified and then, for a relatively small explosion energy (2-10 x 10 to 49th erg) the hydrodynamic problem of the envelope ejection is solved numerically. It is noted that this energy comes from neutrino-induced detonative carbon burning. The resulting structure of the SNI atmosphere expanding with the velocity gradient can be used for an interpretation of the observed SNI spectra.
Imshennik Vladimir S.
Nadezhin D. K.
Utrobin Victor P.
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