| Institution: | WANG Bo1,2,3,LIU ZhengWei1,HAN YunKun1,LEI ZhenXin1,LUO YangPing1,3 & HAN ZhanWen1,2 1National Astronomical Observatories/Yunnan Observatory,Chinese Academy of Sciences,Kunming 650011,China,2Key Laboratory for the Structure , Evolution of Celestial Objects,3Graduate University of Chinese Academy of Sciences,Beijing 100049 |
| Abstract: | Type Ia supernovae (SNe Ia) play an important role in diverse areas of astrophysics, from the chemical evolution of galaxies to observational cosmology. However, the nature of the progenitors of SNe Ia is still unclear. In this paper, according to a detailed binary population synthesis study, we obtained SN Ia birthrates and delay times from different progenitor models, and compared them with observations. We find that the Galactic SN Ia birthrate from the double-degenerate (DD) model is close to those infe... |
