Are the R Coronae Borealis Stars Produced by White Dwarf Mergers?

被引：0
|
作者：
Clayton, Geoffrey C. [1 ]
机构：
[1] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA
来源：
18TH EUROPEAN WHITE DWARF WORKSHOP | 2013年 / 469卷
关键词：
HYDROGEN-DEFICIENT CARBON; SAKURAIS-OBJECT; BINARY; EVOLUTION; DISCOVERY; ORIGIN; O-18;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The R Coronae Borealis (RCB) stars are rare hydrogen-deficient, carbon-rich supergiants. Two evolutionary scenarios have been suggested, a double degenerate merger of two white dwarfs (WDs), or a final helium shell flash in a PN central star. The evidence pointing toward a WD merger or a FF origin for RCB stars is contradictory. The population of RCB stars in the Galaxy may be consistent with the number of He/CO WD mergers. If so, this would be an exciting result since RCB stars may be low-mass analogs of Type Ia SNe.
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页码：133 / 136
页数：4
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