Binary population synthesis for the core-degenerate scenario of type Ia supernova progenitors

被引：0

作者：

Wei-Hong Zhou ^{[1
,2
,3
]}

Bo Wang ^{[4
,5
]}

Xiang-Cun Meng ^{[4
,5
]}

Dong-Dong Liu ^{[2
,4
,5
]}

Gang Zhao ^{[1
]}

机构：

[1] Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences

[2] University of Chinese Academy of Sciences

[3] Yunnan Minzu University

[4] Yunnan Observatories,Chinese Academy of Sciences

[5] Key Laboratory for the Structure and Evolution of Celestial Objects,Chinese Academy of Sciences

来源：

Research in Astronomy and Astrophysics | 2015年 / 15卷 / 10期

基金：

中国国家自然科学基金;

关键词：

binaries; close-stars; evolution-supernovae; general;

D O I：

暂无

中图分类号：

P145.3 [新星和超新星];

学科分类号：

070401 ;

摘要：

The core-degenerate（CD） scenario has been suggested to be a possible progenitor model of type Ia supernovae（SNe Ia）,in which a carbon-oxygen white dwarf merges with the hot CO core of a massive asymptotic giant branch star during their common-envelope phase.However,the SN Ia birthrates for this scenario are still uncertain.We conducted a detailed investigation into the CD scenario and then gave the birthrates for this scenario using a detailed Monte Carlo binary population synthesis approach.We found that the delay times of SNe Ia from this scenario are;0 Myr-1400 Myr,which means that the CD scenario contributes to young SN la populations.The Galactic SN la birthrates for this scenario are in the range of;.4×10;yr;- 3.7 × 10;yr;,which roughly accounts for;%-10%of all SNe Ia.This indicates that,under the assumptions made here,the CD scenario only contributes a small portion of all SNe Ia,which is not consistent with the results of Ilkov & Soker.

引用

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页码：1701 / 1712

页数：12

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