EVOLUTION OF LOW-MASS X-RAY BINARIES: THE EFFECT OF DONOR EVAPORATION

被引：11

作者：

Jia, Kun ^{[1
,2
]}

Li, Xiang-Dong ^{[1
,2
]}

机构：

[1] Nanjing Univ, Dept Astron, Nanjing 210046, Jiangsu, Peoples R China

[2] Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210046, Jiangsu, Peoples R China

来源：

ASTROPHYSICAL JOURNAL | 2016年 / 830卷 / 02期

关键词：

binaries: eclipsing; pulsars: general; stars: evolution; stars: neutron; X-rays: binaries; HELIUM WHITE-DWARF; MILLISECOND PULSAR; COMPANION; MODULES; SYSTEMS; MODEL; COOL; STABILITY; DISCOVERY; ROTATION;

D O I：

10.3847/0004-637X/830/2/153

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Millisecond pulsars (MSPs) are thought to originate from low-mass X-ray binaries (LMXBs). The discovery of eclipsing radio MSPs, including redbacks and black widows, indicates that evaporation of the donor star by the MSP's irradiation takes place during the LMXB evolution. In this work, we investigate the effect of donor evaporation on the secular evolution of LMXBs, considering different evaporation efficiencies and related angular momentum loss. We find that for widening LMXBs, the donor star leaves a less massive white dwarf than without evaporation; for contracting systems, evaporation can speed up the evolution, resulting in dynamically unstable mass transfer and possibly the formation of isolated MSPs.

引用

页数：9

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