ORBi: Brandi E. - The ultraviolet spectrum of the peculiar emission-line star GG Carinae

Reference : The ultraviolet spectrum of the peculiar emission-line star GG Carinae


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/108252

Title :	The ultraviolet spectrum of the peculiar emission-line star GG Carinae
Language :	English
Author, co-author :	Brandi, E. [Observatorio Astronomico, La Plata, Argentina]
	Gosset, Eric [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)]
	Swings, Jean-Pierre [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)]
Publication date :	1-Mar-1987
Journal title :	Astronomy and Astrophysics
Publisher :	EDP Sciences
Volume :	175
Pages :	151-163
Audience :	International
ISSN :	0004-6361
e-ISSN :	1432-0746
City :	Les Ulis
Country :	France
Keywords :	[en] ECLIPSING BINARY STARS ; EMISSION SPECTRA ; PECULIAR STARS ; RESONANCE LINES ; STELLAR SPECTRA ; ULTRAVIOLET SPECTRA ; IUE ; RADIAL VELOCITY ; SPECTRUM ANALYSIS ; VARIABLE STARS
Abstract :	[en] This paper presents the first study of the properties of the peculiar emission-line star GG Carinae in the ultraviolet wavelength domain. From IUE high resolution spectra, the authors investigate the behaviour of different velocities. From IUE low resolution data, they propose a value of the B-V excess of E[SUB]B-V[/SUB] = 0.52±0.04 (2σ). The continuum of GG Car from the UV to the visible is rather well represented by the theoretical flux of a T[SUB]eff[/SUB] = 18,000K Kurucz standard model atmosphere. The authors investigate also the ultraviolet light curve, which is essentially similar to the one observed in the visible (Gosset et al., 1984, 1985).
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/108252
Other URL :	http://adsabs.harvard.edu/abs/1987A%26A...175..151B

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