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1995A&A...297..779J - Astronomy and Astrophysics, volume 297, 779-786 (1995/5-3)
V 348 Sagittarii: analysis of the absorption spectrum.
JEFFERY C.S.
Abstract (from CDS):
V348Sgr is confirmed to have a surface carbon abundance much higher than that encountered in extreme helium stars (typically nC=0.01), but typical of other cool Wolf-Rayet central stars. However, the N/O and O/Si ratios are within the ranges observed in EHe and hot RCrB stars, implying that V 348Sgr and other [WC-L] stars may represent the C-rich extremity of an ubiquitous helium-star production mechanism. The analysis demonstrates the presence of CNO, 3α and 12C(α,γ)16O products, as well as a substantial hydrogen remnant, which imply that considerable disruption of the stellar surface layers must have occurred. Consequences for evolutionary models are considered.
Abstract Copyright: ∼
Journal keyword(s): stars: abundances - stars: atmospheres - stars: individual: V348 Sgr
Simbad objects: 2
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