Evolution of LMXBs under Different Magnetic Braking Prescriptions

Autor:	Deng, Zhu-Ling, Li, Xiang-Dong, Gao, Zhi-Fu, Shao, Yong
Rok vydání:	2021
Předmět:	Astrophysics - High Energy Astrophysical Phenomena
Druh dokumentu:	Working Paper
DOI:	10.3847/1538-4357/abe0b2
Popis:	Magnetic braking (MB) likely plays a vital role in the evolution of low-mass X-ray binaries (LMXBs). However, it is still uncertain about 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 descendants 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. Comment: 30 pages, 9 figures, 3 tables, accepted for publication in ApJ
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2101.12427 Zobrazit plný text záznamu View this record from Arxiv