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2006BaltA..15...99F - Baltic Astronomy, 15, 99-102 (2006/February-0)
Analysis of the FUSE spectra of the He-poor SdO star MCT 0019-2441.
FONTAINE M., CHAYER P., WESEMAEL F., FONTAINE G. and LAMONTAGNE R.
Abstract (from CDS):
We present a preliminary analysis of the FUSE spectra of MCT 0019-2441, a relatively He-poor sdO star. Among the handful of absorption features of photospheric origin present in the ultraviolet, we identify the OVI doublet at 1031.9 and 1037.6 Å, the SVI doublet at 933.4 and 944.5 Å, the SiIV triplet at 1122.5 and 1128.3 Å and some NIV lines. While synthetic spectra based on NLTE line blanketed model atmospheres can reproduce most line profiles, they fail to reproduce the OVI line profiles in a satisfactory manner. Possible solutions to this puzzle are considered.
Abstract Copyright: ∼
Journal keyword(s): stars: hot subdwarfs - stars: abundances - stars: individual (MCT 0019-2441)
Simbad objects: 2
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