Evolution of LMXBs under Different Magnetic Braking Prescriptions

被引：67
作者：
Deng, Zhu-Ling [1 ,2 ,3 ,4 ,5 ]
Li, Xiang-Dong [4 ,5 ]
Gao, Zhi-Fu [1 ,2 ]
Shao, Yong [4 ,5 ]
机构：
[1] Chinese Acad Sci, Xinjiang Astron Observ, 150,Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
[2] Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China
[3] Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
[4] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China
[5] Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Peoples R China
来源：
ASTROPHYSICAL JOURNAL | 2021年 / 909卷 / 02期
关键词：
Binary pulsars; Neutron stars; X-ray binary stars; X-RAY BINARIES; WHITE-DWARF COMPANIONS; ANGULAR-MOMENTUM EVOLUTION; LOW-MASS STARS; MILLISECOND PULSARS; CATACLYSMIC VARIABLES; CONVECTIVE BOUNDARIES; CYGNUS X-2; ROTATION; MODULES;
D O I：
10.3847/1538-4357/abe0b2
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Magnetic braking (MB) likely plays a vital role in the evolution of low-mass X-ray binaries (LMXBs). However, there is still uncertainty around the physics of MB, and there are various proposed scenarios for MB in the literature. To examine and discriminate the efficiency of MB, we investigate the LMXB evolution with five proposed MB laws. Combining detailed binary evolution calculation with binary population synthesis, we obtain the expected properties of LMXBs and their descendant binary millisecond pulsars. We then discuss the strength and weakness of each MB law by comparing the calculated results with observations. We conclude that the tau-boosted MB law seems to best match the observational characteristics.
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页数：12
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