New constraints on binary evolution enhance the supernova type Ia rate
Abstract
Even though Type Ia supernovae (SNIa) play an important role in many fields in astronomy, the nature of the progenitors of SNIa remain a mystery. One of the classical evolutionary pathways towards a SNIa explosion is the single degenerate (SD) channel, in which a carbon-oxygen white dwarf accretes matter from its non-degenerate companion until it reaches the Chandrasekhar mass. Constraints on the contribution from the SD channel to the overall SNIa rate come from a variety of methods, e.g. from abundances, from signatures of the companion star in the light curve or near the SNIa remnant, and from synthetic SNIa rates. In this proceedings, I show that when incorporating our newest understandings of binary evolution, the SNIa rate from the single degenerate channel is enhanced. I also discuss the applicability of these constraints on the evolution of SNIa progenitors.
Keywords
Cite
@article{arxiv.1703.05415,
title = {New constraints on binary evolution enhance the supernova type Ia rate},
author = {S. Toonen},
journal= {arXiv preprint arXiv:1703.05415},
year = {2017}
}
Comments
3 figures, 6 pages, Proceedings of the workshop: "The Golden Age of Cataclysmic Variables and Related Objects III", Palermo, Italy, Sep 7-12, 2015