Article (Scientific journals)
Radial velocities along the light curve of the peculiar emission-line star GG Carinae
Gosset, Eric; Hutsemekers, Damien; Swings, Jean-Pierre et al.
1985In Astronomy and Astrophysics, 153, p. 71-78
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Keywords :
LIGHT CURVE; PECULIAR STARS; RADIAL VELOCITY; STELLAR SPECTRA; BINARY STARS; CALCIUM; EMISSION SPECTRA; HELIUM; HYDROGEN; IRON; LINE SPECTRA
Abstract :
[en] Measurements of the radial velocities of several emission and absorption lines in a large series of high dispersion spectra of the peculiar emission-line object GG Carinae are combined with the photometric data described by Gosset et al. (1984) in an attempt to derive constraints on a qualitative physical model of this peculiar, and most probably binary, object. Previously unreported spectral features are the double absorption components of the Balmer lines and the He I absorption lines appearing around phase phi = 0.45 of the 31.02 day period deduced from the radial velocity curve.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Gosset, Eric ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
Hutsemekers, Damien ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Swings, Jean-Pierre ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Surdej, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Language :
English
Title :
Radial velocities along the light curve of the peculiar emission-line star GG Carinae
Publication date :
01 December 1985
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
153
Pages :
71-78
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 September 2009

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