论文标题
通过积聚引起的白矮人二进制文件形成中子恒星系统的形成
The formation of neutron star systems through accretion-induced collapse in white-dwarf binaries
论文作者
论文摘要
增生引起的崩溃(AIC)方案是40年前提出的,是氧气 - 否蛋白白色堤防(ONE WDS)的进化端状态,将它们与中子星(NS)系统的形成联系起来。但是,到目前为止,尚未直接发现任何AIC事件,即使存在许多间接的观察证据。同时,仍未很好地研究导致通过AIC形成NS的进化途径。在本文中,我们回顾了有关AIC事件的两个经典祖细胞模型的最新研究,即单定位模型(包括One WD+MS/RG/HE STAR通道和CO WD+HE Star Channel)和双层模型(包括双CO/ONE WD通道和一个WD+CO WD频道)。回顾了这些祖细胞模型的最新进展,包括进化场景,初始参数空间和相关对象。对于单级化模型,可以将前系统系统识别为超X射线源,共生和灾难性变量,而后的SAIC系统可以被识别为低/中/中等的X射线X射线二元组,以及由此产生的低/中间/中等二进制二进制二进制二进制二进制二进制二进制的pulsars,noss of Most y Moss culsars,culsars,morisisecons。对于双层模型,卫星前系统是密切的双WDS,而后的SAIC系统是具有特殊特性的孤立的NSS。我们还回顾了AIC事件的预测速率,NSS的质量分布以及来自双WDS的重力波(GW)信号,这些信号在未来的基于空间的GW检测器的背景下是银河系中潜在的GW来源。总结了有关检测AIC事件的最新理论和观察性约束。为了确认AIC过程的存在,并解决了当前恒星进化论提出的这个长期问题,需要更多的数值模拟和观察性识别。
The accretion-induced collapse (AIC) scenario was proposed 40 years ago as an evolutionary end state of oxygen-neon white-dwarfs (ONe WDs), linking them to the formation of neutron star (NS) systems. However, there has been no direct detection of any AIC event so far, even though there exists a lot of indirect observational evidence. Meanwhile, the evolutionary pathways resulting in NS formation through AIC are still not well investigated. In this article, we review recent studies on the two classic progenitor models of AIC events, i.e., the single-degenerate model (including the ONe WD+MS/RG/He star channels and the CO WD+He star channel) and the double-degenerate model (including the double CO/ONe WD channels and the ONe WD+CO WD channel). Recent progress on these progenitor models is reviewed, including the evolutionary scenarios, the initial parameter space and the related objects. For the single-degenerate model, the pre-AIC systems could potentially be identified as supersoft X-ray sources, symbiotics and cataclysmic variables, whereas the post-AIC systems could be identified as low-/intermediate-mass X-ray binaries and the resulting low-/intermediate-mass binary pulsars, most notably millisecond pulsars. For the double-degenerate model, the pre-AIC systems are close double WDs, whereas the post-AIC systems are isolated NSs with peculiar properties. We also review the predicted rates of AIC events, the mass distribution of NSs, and the gravitational wave (GW) signals from double WDs that are potential GW sources in the Galaxy in the context of future space-based GW detectors. Recent theoretical and observational constraints on the detection of AIC events are summarized. In order to confirm the existence of the AIC process, and resolve this long-term issue presented by current stellar evolution theories, more numerical simulations and observational identifications are required.