Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250

Autores
Rauw, G.; Nazé, Y.; Fernández Lajús, Eduardo; Lanotte, A. A.; Solivella, Gladys Rebeca; Sana, H.; Gosset, E.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the results of a spectroscopic monitoring campaign devoted to three O-type stars in the Carina nebula. We derive the full SB2 orbital solution of the binary system Tr 16-112, an exceptional dissymmetrical system consisting of an O5.5-6 V((f+?p)) primary and a B2 V-III secondary. We also report on low-amplitude brightness variations in Tr 16-112 that are likely due to the ellipsoidal shape of the O5.5-6 primary revolving in an eccentric orbit around the system's centre of mass. We detect for the first time a clear SB2 binary signature in the spectrum of HD 93343 (O8 + O8), although our data are not sufficient to establish an orbital solution. This system also displays low-amplitude photometric modulations. On the other hand, no indication of multiplicity is found in the optical spectra of HD 93250. Finally, we discuss the general properties of multiple massive stars in the Carina OB1 association.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
Binaries: spectroscopic
Stars: early-type
Stars: fundamental parameters
Stars: individual: HD 93250
Stars: individual: HD 93343
Stars: individual: Tr 16-112
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/82736

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network_name_str SEDICI (UNLP)
spelling Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250Rauw, G.Nazé, Y.Fernández Lajús, EduardoLanotte, A. A.Solivella, Gladys RebecaSana, H.Gosset, E.Ciencias AstronómicasBinaries: spectroscopicStars: early-typeStars: fundamental parametersStars: individual: HD 93250Stars: individual: HD 93343Stars: individual: Tr 16-112We present the results of a spectroscopic monitoring campaign devoted to three O-type stars in the Carina nebula. We derive the full SB2 orbital solution of the binary system Tr 16-112, an exceptional dissymmetrical system consisting of an O5.5-6 V((f+?p)) primary and a B2 V-III secondary. We also report on low-amplitude brightness variations in Tr 16-112 that are likely due to the ellipsoidal shape of the O5.5-6 primary revolving in an eccentric orbit around the system's centre of mass. We detect for the first time a clear SB2 binary signature in the spectrum of HD 93343 (O8 + O8), although our data are not sufficient to establish an orbital solution. This system also displays low-amplitude photometric modulations. On the other hand, no indication of multiplicity is found in the optical spectra of HD 93250. Finally, we discuss the general properties of multiple massive stars in the Carina OB1 association.Facultad de Ciencias Astronómicas y Geofísicas2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1582-1592http://sedici.unlp.edu.ar/handle/10915/82736enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2009.15226.xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:35Zoai:sedici.unlp.edu.ar:10915/82736Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:36.249SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250
title Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250
spellingShingle Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250
Rauw, G.
Ciencias Astronómicas
Binaries: spectroscopic
Stars: early-type
Stars: fundamental parameters
Stars: individual: HD 93250
Stars: individual: HD 93343
Stars: individual: Tr 16-112
title_short Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250
title_full Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250
title_fullStr Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250
title_full_unstemmed Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250
title_sort Optical spectroscopy of X-Mega targets in the Carina nebula : VII. On the multiplicity of Tr 16-112, HD 93343 and HD 93250
dc.creator.none.fl_str_mv Rauw, G.
Nazé, Y.
Fernández Lajús, Eduardo
Lanotte, A. A.
Solivella, Gladys Rebeca
Sana, H.
Gosset, E.
author Rauw, G.
author_facet Rauw, G.
Nazé, Y.
Fernández Lajús, Eduardo
Lanotte, A. A.
Solivella, Gladys Rebeca
Sana, H.
Gosset, E.
author_role author
author2 Nazé, Y.
Fernández Lajús, Eduardo
Lanotte, A. A.
Solivella, Gladys Rebeca
Sana, H.
Gosset, E.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Binaries: spectroscopic
Stars: early-type
Stars: fundamental parameters
Stars: individual: HD 93250
Stars: individual: HD 93343
Stars: individual: Tr 16-112
topic Ciencias Astronómicas
Binaries: spectroscopic
Stars: early-type
Stars: fundamental parameters
Stars: individual: HD 93250
Stars: individual: HD 93343
Stars: individual: Tr 16-112
dc.description.none.fl_txt_mv We present the results of a spectroscopic monitoring campaign devoted to three O-type stars in the Carina nebula. We derive the full SB2 orbital solution of the binary system Tr 16-112, an exceptional dissymmetrical system consisting of an O5.5-6 V((f+?p)) primary and a B2 V-III secondary. We also report on low-amplitude brightness variations in Tr 16-112 that are likely due to the ellipsoidal shape of the O5.5-6 primary revolving in an eccentric orbit around the system's centre of mass. We detect for the first time a clear SB2 binary signature in the spectrum of HD 93343 (O8 + O8), although our data are not sufficient to establish an orbital solution. This system also displays low-amplitude photometric modulations. On the other hand, no indication of multiplicity is found in the optical spectra of HD 93250. Finally, we discuss the general properties of multiple massive stars in the Carina OB1 association.
Facultad de Ciencias Astronómicas y Geofísicas
description We present the results of a spectroscopic monitoring campaign devoted to three O-type stars in the Carina nebula. We derive the full SB2 orbital solution of the binary system Tr 16-112, an exceptional dissymmetrical system consisting of an O5.5-6 V((f+?p)) primary and a B2 V-III secondary. We also report on low-amplitude brightness variations in Tr 16-112 that are likely due to the ellipsoidal shape of the O5.5-6 primary revolving in an eccentric orbit around the system's centre of mass. We detect for the first time a clear SB2 binary signature in the spectrum of HD 93343 (O8 + O8), although our data are not sufficient to establish an orbital solution. This system also displays low-amplitude photometric modulations. On the other hand, no indication of multiplicity is found in the optical spectra of HD 93250. Finally, we discuss the general properties of multiple massive stars in the Carina OB1 association.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/82736
url http://sedici.unlp.edu.ar/handle/10915/82736
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0035-8711
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2009.15226.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
1582-1592
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instname:Universidad Nacional de La Plata
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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