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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/82736
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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 http://purl.org/coar/resource_type/c_6501 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) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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