191 citations · 828 across the 26 of their papers we have counts for
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astro-ph.SR2011★ 1 cited
Low-mass stellar and substellar companions to sdB stars
S. Geier, L. Classen, P. Bruenner +9
It has been suggested that besides stellar companions, substellar objects in close orbits may be able to trigger mass loss in a common envelope phase and form hot subdwarfs. In an…
astro-ph.SR2011
Helium abundances and the helium isotope anomaly of sdB stars
S. Geier, U. Heber, H. Edelmann +5
Helium abundances and atmospheric parameters have been determined from high resolution spectra for a new sample of 46 bright hot subdwarf B (sdB) stars. The helium abundances have…