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| Paper: |
Are the R Coronae Borealis Stars Produced by White Dwarf Mergers? |
| Volume: |
469, 18th European White Dwarf Workshop (EUROWD12) |
| Page: |
133 |
| Authors: |
Clayton, G. C. |
| Abstract: |
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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