SIMBAD references

2006BaltA..15..159A - Baltic Astronomy, 15, 159-162 (2006/February-0)

Spectral analysis of sdB-He stars from the SDSS.

AHMAD A., WINTER C. and JEFFERY C.S.

Abstract (from CDS):

We present spectral classification and physical parameters of a sample of ``helium-rich'' sdB-He stars from spectra obtained from the SDSS archive. The spectral classification was carried out using an automated neural network, and the physical parameters were derived using LTE model atmospheres. The results indicate that most of these stars are not typical He-sdB stars but rather are normal sdB stars with slight helium enrichment. This is most likely a result of the use of a different definition of ``helium-rich'' in the initial SDSS classification to that used more widely in the field.

Abstract Copyright: ∼

Journal keyword(s): stars: chemically peculiar - early-type, subdwarfs, fundamental parameters

CDS comments: in ref list GREEN 1986ApJS...61..305G instead of ApJS.61.304

Simbad objects: 15

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