Carbon deflagration models for type-I supernovae and theoretical optical spectra |
| |
| Authors: | Ken'Ichi Nomoto Friedrich-K Thielemann Koichi Yokoi David Branch |
| |
| Institution: | (1) Dept of Earth Science and Astronomy, University of Tokyo, Japan;(2) Institut für Astrophysik, Max-Planck-Institut für Physik und Astrophysik, Garching, F.R.G.;(3) Institut für Kernphysik III, Karlsruhe, F.R.G.;(4) Dept of Physics and Astronomy, University of Oklahoma, Norman, OK, U.S.A. |
| |
| Abstract: | A carbon deflagration model in the accreting C+O white dwarf is presented as a plausible model for type-I supernovae (SN I). The evolution of the white dwarf is calculated from the beginning of accretion through complete disruption. The propagation of a carbon deflagration wave from center to the surface and associated nucleosynthesis are calculated. About 0.6M
56Ni and substantial amounts of Ca, Ar, S, Si, Mg, and O are synthesized.The synthetic spectrum at maximum light for this carbon deflagration model is calculated and compared to the observed spectrum of SN 1981b in NGC 4536 at maximum light. If the radial stratification of composition in the outer layers of the model is removed by mixing, the theoretical spectrum is in good agreement with the observed spectrum.Paper presented at the IAU Third Asian-Pacific Regional Meeting, held in Kyoto, Japan, between 30 September–6 October, 1984. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
