Helium-Rich Subdwarf B Stars

Details Helium-Rich Subdwarf B Stars Helium-Rich Subdwarf B Stars

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..391..261a&link_type=abstract

Hydrogen-Deficient Stars ASP Conference Series, Vol. 391, proceedings of the conference held 17-21 September, 2007, at Eberhard

Astronomy and Astrophysics

Astronomy

1

Scientific paper

A very small fraction of subluminous B stars have spectra dominated by lines of neutral helium. Although these helium-rich subdwarf B (He-sdB) stars have been perceived as a single class, their properties are in fact very diverse, including both apparently single stars and a close binary pair -- the double He-sdB system PG 1544+488. We briefly review what is known about the properties of He-sdB stars, including some interesting individual objects, and how these fit with various ideas concerning their origins.

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