The massive Wolf-Rayet binary LSS 1964 (=WR 29)

Autores
Gamen, Roberto Claudio; Fernández Lajús, Eduardo; Niemelä, Virpi Sinikka; Barbá, Rodolfo Héctor
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. WR 29 is a known WN7h+O double-lined binary system with a rather short period (3.164 days). Aims. We search for light variations to determine the inclination of the system and thus the absolute masses of both components. Methods. We observed photometrically the field of WR 29 between December, 2002, and February, 2006. Results. We find that the light of WR 29 varies in phase with the spectroscopic period of 3.16412 days, presenting two minima corresponding to the conjunctions of the binary components. Numerical models fitted to the light curve indicate an orbital inclination of about 44°, and masses of 53 M⊙ and 42 M⊙ for the O-and WN-type components, respectively.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
Materia
Ciencias Astronómicas
Stars: binaries: close
Stars: binaries: eclipsing
Stars: binaries: spectroscopic
Stars: Wolf-Rayet
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:10915/82791
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/82791
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling The massive Wolf-Rayet binary LSS 1964 (=WR 29)Gamen, Roberto ClaudioFernández Lajús, EduardoNiemelä, Virpi SinikkaBarbá, Rodolfo HéctorCiencias AstronómicasStars: binaries: closeStars: binaries: eclipsingStars: binaries: spectroscopicStars: Wolf-RayetContext. WR 29 is a known WN7h+O double-lined binary system with a rather short period (3.164 days). Aims. We search for light variations to determine the inclination of the system and thus the absolute masses of both components. Methods. We observed photometrically the field of WR 29 between December, 2002, and February, 2006. Results. We find that the light of WR 29 varies in phase with the spectroscopic period of 3.16412 days, presenting two minima corresponding to the conjunctions of the binary components. Numerical models fitted to the light curve indicate an orbital inclination of about 44°, and masses of 53 M⊙ and 42 M⊙ for the O-and WN-type components, respectively.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1269-1275http://sedici.unlp.edu.ar/handle/10915/82791enginfo:eu-repo/semantics/altIdentifier/issn/0004-6361info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/200810112info: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:UNLP2025-09-03T10:47:51Zoai:sedici.unlp.edu.ar:10915/82791Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:47:51.275SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title The massive Wolf-Rayet binary LSS 1964 (=WR 29)
spellingShingle The massive Wolf-Rayet binary LSS 1964 (=WR 29)
Gamen, Roberto Claudio
Ciencias Astronómicas
Stars: binaries: close
Stars: binaries: eclipsing
Stars: binaries: spectroscopic
Stars: Wolf-Rayet
title_short The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title_full The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title_fullStr The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title_full_unstemmed The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title_sort The massive Wolf-Rayet binary LSS 1964 (=WR 29)
dc.creator.none.fl_str_mv Gamen, Roberto Claudio
Fernández Lajús, Eduardo
Niemelä, Virpi Sinikka
Barbá, Rodolfo Héctor
author Gamen, Roberto Claudio
author_facet Gamen, Roberto Claudio
Fernández Lajús, Eduardo
Niemelä, Virpi Sinikka
Barbá, Rodolfo Héctor
author_role author
author2 Fernández Lajús, Eduardo
Niemelä, Virpi Sinikka
Barbá, Rodolfo Héctor
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Stars: binaries: close
Stars: binaries: eclipsing
Stars: binaries: spectroscopic
Stars: Wolf-Rayet
topic Ciencias Astronómicas
Stars: binaries: close
Stars: binaries: eclipsing
Stars: binaries: spectroscopic
Stars: Wolf-Rayet
dc.description.none.fl_txt_mv Context. WR 29 is a known WN7h+O double-lined binary system with a rather short period (3.164 days). Aims. We search for light variations to determine the inclination of the system and thus the absolute masses of both components. Methods. We observed photometrically the field of WR 29 between December, 2002, and February, 2006. Results. We find that the light of WR 29 varies in phase with the spectroscopic period of 3.16412 days, presenting two minima corresponding to the conjunctions of the binary components. Numerical models fitted to the light curve indicate an orbital inclination of about 44°, and masses of 53 M⊙ and 42 M⊙ for the O-and WN-type components, respectively.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
description Context. WR 29 is a known WN7h+O double-lined binary system with a rather short period (3.164 days). Aims. We search for light variations to determine the inclination of the system and thus the absolute masses of both components. Methods. We observed photometrically the field of WR 29 between December, 2002, and February, 2006. Results. We find that the light of WR 29 varies in phase with the spectroscopic period of 3.16412 days, presenting two minima corresponding to the conjunctions of the binary components. Numerical models fitted to the light curve indicate an orbital inclination of about 44°, and masses of 53 M⊙ and 42 M⊙ for the O-and WN-type components, respectively.
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/10915/82791
url http://sedici.unlp.edu.ar/handle/10915/82791
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0004-6361
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/200810112
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
1269-1275
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.13397

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