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Formation of accreting millisecond X-ray pulsars
He X(贺祥)
2019
Source Publication天文和天体物理学研究:英文版
ISSN1674-4527
Volume000Issue:008Pages:45
AbstractAccreting millisecond X-ray pulsars(AMXPs) are an important subclass of low-mass X-ray binaries(LMXBs), in which coherent millisecond X-ray pulsations can be observed during outburst states.They have dual characteristics of LMXBs and millisecond pulsars, providing a direct confirmation for the recycling scenario. However, their formation is not well understood. In this work, we simulate the evolution of LMXBs with the MESA code to explore the formation and evolution of AMXPs. Based on the binary evolutionary model of LMXBs and the model of accretion disk instability, we find that most of the observed AMXPs can be produced from LMXBs with orbital periods at the onset of Roche lobe overflow close to the bifurcation period and their observed properties can be explained by our models. The AMXPs with main sequence(MS) donors ultimately evolve into AMXPs with extremely low-mass He white dwarf donors.Moreover, our results indicate that these AMXPs with MS donors are likely to have donor stars near the terminal-age main sequence.
Keywordbinaries:close stars:evolution stars:neutron X-ray:binaries
Language英语
Funding Project[National Natural Science Foundation of China] ; [Yunnan Foundation] ; [Youth Innovation Promotion Association of the Chinese Academy of Sciences (CAS)] ; [CAS light of West China Program] ; [CAS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/67111
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
He X. Formation of accreting millisecond X-ray pulsars[J]. 天文和天体物理学研究:英文版,2019,000(008):45.
APA 贺祥.(2019).Formation of accreting millisecond X-ray pulsars.天文和天体物理学研究:英文版,000(008),45.
MLA 贺祥."Formation of accreting millisecond X-ray pulsars".天文和天体物理学研究:英文版 000.008(2019):45.
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