典型文献
Hypercritical Accretion for Black Hole High Spin in Cygnus X-1
文献摘要：
Recent observations of AdLIGO and Virgo have shown that the spin measurements in binary black hole(BH)systems are typically small,which is consistent with the predictions by the classical isolated binary evolution channel.In this standard formation channel,the progenitor of the first-born BH is assumed to have efficient angular momentum transport.The BH spins in high-mass X-ray binaries(HMXBs),however,have consistently been found to be extremely high.In order to explain the high BH spins,the inefficient angular momentum transport inside the BH progenitor is required.This requirement,however,is incompatible with the current understanding of conventional efficient angular momentum transport mechanism.We find that this tension can be highly alleviated as long as the hypercritical accretion is allowed.We show that,for a case study of Cygnus X-l,the hypercritical accretion cannot only be a good solution for the inconsistent assumption upon the angular momentum transport within massive stars,but match its other properties reported recently.
文献关键词：
中图分类号：
作者姓名：
Ying Qin;Xinwen Shu;Shuangxi Yi;Yuan-Zhu Wang
作者机构：
Department of Physics,Anhui Normal University,Wuhu 241000,China;Guangxi Key Laboratory for Relativistic Astrophysics,Nanning 530004,China;School of Physics and Physical Engineering,Qufu Normal University,Qufu 273165,China;Key Laboratory of Dark Matter and Space Astronomy,Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210033,China
文献出处：
引用格式：
[1]Ying Qin;Xinwen Shu;Shuangxi Yi;Yuan-Zhu Wang-.Hypercritical Accretion for Black Hole High Spin in Cygnus X-1)[J].天文和天体物理学研究,2022(03):246-251
A类：
Hypercritical,Cygnus,AdLIGO,binaries,HMXBs,hypercritical
B类：
Accretion,Black,Hole,High,Spin,Recent,observations,Virgo,have,shown,that,measurements,binary,black,hole,BH,systems,are,typically,small,which,predictions,by,classical,isolated,evolution,channel,In,this,standard,formation,progenitor,first,born,assumed,angular,momentum,transport,spins,ray,however,consistently,been,found,extremely,order,explain,inefficient,inside,required,This,requirement,incompatible,current,understanding,conventional,mechanism,We,find,tension,highly,alleviated,long,accretion,allowed,case,study,cannot,only,good,solution,inconsistent,assumption,upon,within,massive,stars,but,match,its,other,properties,reported,recently
AB值：
0.536204
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