The white dwarf’s carbon fraction as a secondary parameter of Type Ia supernovae

Author: Ohlmann Sebastian T.   Kromer Markus   Fink Michael   Pakmor Rüdiger   Seitenzahl Ivo R.   Sim Stuart A.   Röpke Friedrich K.  

Publisher: Edp Sciences

E-ISSN: 1432-0746|572|issue|A57-A57

ISSN: 0004-6361

Source: Astronomy & Astrophysics, Vol.572, Iss.issue, 2014-11, pp. : A57-A57

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Abstract

Context. Binary stellar evolution calculations predict that Chandrasekhar-mass carbon/oxygen white dwarfs (WDs) show a radially varying profile for the composition with a carbon depleted core. Many recent multi-dimensional simulations of Type Ia supernovae (SNe Ia), however, assume the progenitor WD has a homogeneous chemical composition.