The birth rate of subluminous and overluminous type Ia supernovae

Author： Meng X. C.   Chen W. C.   Yang W. M.   Li Z. M.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|525|issue|A129-A129

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.525, Iss.issue, 2010-12, pp. : A129-A129

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Abstract

Context. Based on the single degenerate (SD) scenario, a super-Chandrasekhar mass model derived from the rapid rotation of a progenitor star may account for the overluminous type Ia supernovae (SNe Ia) like SN 2003fg. Previous authors calculated a series of binary evolution and showed the parameter spaces for the super-Chandrasekhar mass model. Another team developed an equal-mass double degenerate (DD) model to explain subluminous SNe Ia like SN 1991bg. But they did not show the evolution of the birth rate of these peculiar SNe Ia or compared them with absolute birth rates from observations.

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