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2006BaltA..15..151K - Baltic Astronomy, 15, 151-158 (2006/February-0)
Spectroscopic analysis of sdB binaries from the SPY project.
KARL C., HEBER U., NAPIWOTZKI R. and GEIER S.
Abstract (from CDS):
In the course of our search for double degenerate binaries as potential progenitors of type Ia supernovae with the ESO VLT several new subdwarf B (sdB) binaries were discovered. In this paper, we present detailed analysis of six radial velocity variable sdB stars. Radial velocity curves have been measured. From the mass functions we derive lower limits to the masses of the unseen companions and discuss their nature. In addition, effective temperatures, surface gravities, helium abundances and metal abundances were determined.
Abstract Copyright: ∼
Journal keyword(s): binaries: spectroscopic - stars: atmospheres - stars: hot subdwarfs
Simbad objects: 7
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