The subdwarf B star SB 290 – A fast rotator on the extreme horizontal branch

@article{Geier2013TheSB,
  title={The subdwarf B star SB 290 – A fast rotator on the extreme horizontal branch},
  author={S. Geier and U. Heber and C. Heuser and L. Classen and S. O’Toole and H. Edelmann},
  journal={Astronomy and Astrophysics},
  year={2013},
  volume={551}
}
Hot subdwarf B stars (sdBs) are evolved core helium-burning stars with very thin hydrogen envelopes. To form an sdB, the progenitor has to lose almost all of its hydrogen envelope right at the tip of the red giant branch. In close binary systems, mass transfer to the companion provides the extraordinary mass loss required for their formation. However, apparently single sdBs exist as well, and their formation has been unclear for decades. The merger of helium white dwarfs leading to an ignition… Expand
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References

SHOWING 1-10 OF 27 REFERENCES
The Fast-rotating, Low-gravity Subdwarf B Star EC 22081–1916: Remnant of a Common Envelope Merger Event
  • 15
  • PDF
The origin of subdwarf B stars – I. The formation channels
  • 459
  • Highly Influential
  • PDF
Hot Subdwarf Stars
  • 265
Hot subdwarf stars in close-up view III. Metal abundances of subdwarf B stars
  • 38
  • PDF
Common-envelope mergers: A possible channel for forming single sdB stars
  • 25
  • PDF
...
1
2
3
...