Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...318l..47g&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 318, July 15, 1987, p. L47-L50.
Astronomy and Astrophysics
Astrophysics
13
Statistical Analysis, Stellar Luminosity, Stellar Models, Supernovae, White Dwarf Stars, Deflagration, Light Curve, Stellar Evolution, X Ray Sources
Scientific paper
It is generally supposed that the luminosity of a type I supernova (SN I) is powered by the decay of the radioactive isotope Ni-56 which is synthesized and ejected when a white dwarf explodes. The class of models in which thermonuclear ignition leads to the formation of a turbulent burning front and total disruption of the white dwarf is well favored because of the excellent agreement between theory and observations. Despite the maturity of this model it can be criticized because it has not been shown to account for the intrinsic dispersion in the properties of SN I. A careful examination of the importance of the distribution of radioactive material near the center of the explosion suggests how deflagrations may encompass the variation encountered from event to event.
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