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Analysis of ultraviolet atmospheric eclipses in the Wolf-Rayet binary CV SerpentisWhile no eclipses deeper than 0.04 mag are noted in the present UV spectra, covering one-half of an orbital cycle of CV Ser, in the electron scattering continuum at 2400-3200 A or in fine error sensor observations, marked atmospheric eclipses of up to 0.5 mag depth are observed in individual strong lines and over large ranges of the continuum at shorter wavelengths. The flux above the continuum in the C II 1247 A, Si IV 1400 A, and Si IV 1723 lines showed similar phase dependence with emission weakening, as well as with the emission's going into absorption as phase progresses from superior to inferior conjunction of the WC star (primary eclipse). These observations show effects very similar to the behavior of WN stars in the UV.
Document ID
19850064726
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Eaton, J. A.
(Indiana University Bloomington, IN, United States)
Cherepashchuk, A. M.
(Indiana Univ. Bloomington, IN, United States)
Khaliullin, Kh. F.
(Moskovskii Gosudarstvennyi Universitet Moscow, Ussr)
Date Acquired
August 12, 2013
Publication Date
September 1, 1985
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 296
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
85A46877
Funding Number(s)
CONTRACT_GRANT: NAG5-176
Distribution Limits
Public
Copyright
Other

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