On the formation of single and binary helium-rich sdO stars
We propose a formation channel for the previously unexplained helium-rich subdwarf O (He-rich sdO) stars in which post-subdwarf B (sdB) stars (i.e. hybrid COHe white dwarfs) reignite helium burning in a shell after gaining matter from their helium white-dwarf (WD) companions. Such short-period binar...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Published: |
2010
|