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2000MNRAS.311..877M - Mon. Not. R. Astron. Soc., 311, 877-880 (2000/February-1)
Orbital periods of the binary sdB stars PG 0940+068 and PG 1247+554.
MAXTED P.F.L., MORAN C.K.J., MARSH T.R. and GATTI A.A.
Abstract (from CDS):
We have used the radial velocity variations of two sdB stars previously reported to be binaries to establish their orbital periods. They are PG0940+068 (P=8.33d) and PG1247+554 (P=0.599d). The minimum masses of the unseen companions, assuming a mass of 0.5M☉ for the sdB stars, are 0.090±0.003M. for PG1247+554 and 0.63±0.02M☉ for PG0940+068. The nature of the companions is not constrained further by our data.
Abstract Copyright: 2000, Royal Astronomical Society
Journal keyword(s): binaries: close - binaries: spectroscopic - stars: individual: PG0940+068 - stars: individual: PG1247+554 - subdwarfs
Simbad objects: 5
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