Light Curve Models for SN 2009dc
arXiv:1302.3375 · doi:10.1017/S1743921312015268
Abstract
Simplified explosion models of super-Chandrasekhar-mass C-O white dwarfs (WDs) are constructed with parameters such as WD mass and Ni-56 mass. Their light curves are obtained by solving one-dimensional equations of radiation hydrodynamics, and compared with the observations of SN 2009dc, one of the overluminous Type Ia supernovae, to estimate its properties. As a result, the progenitor of SN 2009dc is suggested to be a 2.2- to 2.4-solar-mass C-O WD with 1.2 to 1.4 solar masses of Ni-56, if the extinction by its host galaxy is negligible.
2 pages, 1 figure, published in the Proceedings of the IAU Symposium No. 281 "Binary Paths to Type Ia Supernova Explosions" held in Padova (July 4-8, 2011)