Reference : A new orbital solution for the massive binary system HD 93403
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/15939
A new orbital solution for the massive binary system HD 93403
English
Rauw, Grégor mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) - Sciences spatiales >]
Sana, H. [Institut d'Astrophysique et de Géophysique, Université de Liège, 5, Avenue de Cointe, 4000 Liège, Belgium]
Gosset, Eric mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) >]
Vreux, Jean-Marie [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > > ]
Jehin, Emmanuel mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Parmentier, Geneviève mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
1-Aug-2000
Astronomy and Astrophysics
EDP Sciences
360
1003-1010
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] STARS: BINARIES: SPECTROSCOPIC ; STARS: EARLY- TYPE ; STARS: FUNDAMENTAL PARAMETERS ; STARS: INDIVIDUAL: HD 93403
[en] We present a spectroscopic analysis of the early-type massive binary system HD 93403. Using high resolution optical spectra, we clearly separate the primary and secondary components. For the first time, we are able to provide an orbital solution for both stars. Our new orbital parameters show discrepancies with the previous solution published by Thackeray & Emerson (?). We further discuss several spectral features of HD 93403. We finally derive qualitative constraints on the inclination of the system and we discuss its evolutionary status and the position of both components in the Hertzsprung-Russell diagram. Based on observations collected at the European Southern Observatory (La Silla, Chile) and the Cerro Tololo Inter-American Observatory (CTIO).
http://hdl.handle.net/2268/15939
http://adsabs.harvard.edu/abs/2000A%26A...360.1003R

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