The formation of single neutron stars from double white-dwarf mergers via accretion-induced collapse
The formation of single neutron stars from double white-dwarf mergers via accretion-induced collapse
复制标题
双白矮星合并通过吸积引起的塌缩形成单中子星
DOI：
10.1093/mnras/staa963
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发表时间：
2020-04
期刊：
影响因子：
--
通讯作者：
王博
中科院分区：
文献类型：
--
作者：
刘栋栋;王博
The merging of double white dwarfs (WDs) may produce the events of accretion-induced collapse (AIC) and form single neutron stars (NSs). Meanwhile, it is also notable that the recently proposed WD+He subgiant scenario has a significant contribution to the production of massive double WDs, in which the primary WD grows in mass by accreting He-rich material from a He subgiant companion. In this work, we aim to study the binary population synthesis (BPS) properties of AIC events from the double WD mergers by considering the classical scenarios and also the contribution of the WD+He subgiant scenario to the formation of double WDs. First, we provided a dense and large model grid of WD+He star systems for producing AIC events through the double WD merger scenario. Secondly, we performed several sets of BPS calculations to obtain the rates and single NS number in our Galaxy. We found that the rates of AIC events from the double WD mergers in the Galaxy are in the range of $1.4{-}8.9\times 10^{\rm -3}\, \rm yr^{\rm -1}$ for all ONe/CO WD+ONe/CO WD mergers, and in the range of $0.3{-}3.8\times 10^{\rm -3}\, \rm yr^{\rm -1}$ when double CO WD mergers are not considered. We also found that the number of single NSs from AIC events in our Galaxy may range from 0.328 × 107 to 1.072 × 108. The chirp mass of double WDs for producing AIC events distribute in the range of $0.55{-}1.25\, \rm M_{\odot }$. We estimated that more than half of double WDs for producing AIC events are capable to be observed by the future space-based gravitational wave detectors.
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影响因子：
6.3
作者：
C. Doherty;P. Gil-Pons;L. Siess;J. Lattanzio
通讯作者：
C. Doherty;P. Gil-Pons;L. Siess;J. Lattanzio
影响因子：
6.5
作者：
Bo Wang;S. Justham;Zhanwen Han
通讯作者：
Bo Wang;S. Justham;Zhanwen Han
白矮星合并产生的高能中微子发射
影响因子：
4.9
作者：
Xiao Di;Meszaros Peter;Murase Kohta;Dai Zi-Gao
通讯作者：
Dai Zi-Gao
DOI：
10.1046/j.1365-8711.2001.04376.x
发表时间：
2000-08
期刊：
--
影响因子：
--
作者：
C. Pearson;H. Matsuhara;H. Watarai;T. Matsumoto;T. Onaka
通讯作者：
C. Pearson;H. Matsuhara;H. Watarai;T. Matsumoto;T. Onaka
影响因子：
14.1
作者：
R. Crocker;A. Ruiter;I. Seitenzahl;I. Seitenzahl;F. Panther;S. Sim;H. Baumgardt;A. Moller;D. N
通讯作者：
R. Crocker;A. Ruiter;I. Seitenzahl;I. Seitenzahl;F. Panther;S. Sim;H. Baumgardt;A. Moller;D. N