THE ORBITAL PERIOD EVOLUTION OF THE SUPERSOFT X-RAY SOURCE CAL 87

被引：5

作者：

Ablimit, Iminhaji ^{[1
]}

Li, Xiang-Dong ^{[2
,3
]}

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China

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

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

来源：

ASTROPHYSICAL JOURNAL | 2015年 / 815卷 / 01期

关键词：

binaries: close; stars: evolution; stars: neutron; white dwarfs; X-rays: binaries; WIND-DRIVEN EVOLUTION; LOW MASS STARS; CATACLYSMIC VARIABLES; BINARIES; MODELS; PROGENITORS; IA;

D O I：

10.1088/0004-637X/815/1/17

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

CAL 87 is one of the best known supersoft X-ray sources (SSSs). However, the measured masses, orbital period, and orbital period evolution of CAL 87 cannot be addressed by the standard thermal-timescale mass-transfer model for SSSs. In this work we explore the orbital evolution of CAL 87 with both analytic and numerical methods. We demonstrate that the characteristics mentioned above can be naturally accounted for by the excited-wind-driven mass-transfer model.

引用

页数：4

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