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.

引用

页码：133 / 136

页数：4

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