Apsidal motion in massive close binary systems - I: HD 165052, an extreme case?
- Autores
- Ferrero Sosa, Gabriel Antonio; Gamen, Roberto Claudio; Benvenuto, Omar Gustavo; Fernández Lajús, Eduardo
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present a new set of radial velocity measurements of the spectroscopic binary HD 165052 obtained by disentangling high-resolution optical spectra. The longitude of the periastron (ω = 60 ± 2°) shows a variation with respect to previous studies. We have determined the apsidal motion rate of the system, ω = 12.1 ± 0.° 3 yr-1, which was used to calculate the absolute masses of the binary components: M1 = 22.5 ± 1.0Mȯ and M2 = 20.5 ± 0.9Mȯ. Analysing the separated spectra, we have reclassified the components as O7Vz and O7.5Vz stars.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata - Materia
-
Ciencias Astronómicas
Binaries: close
Binaries:Spectroscopic
Early
Fundamental parameters
Stars
Stars:Individual:HD 165052
stars:Massive.
Type - 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:10915/85536
Ver los metadatos del registro completo
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Apsidal motion in massive close binary systems - I: HD 165052, an extreme case?Ferrero Sosa, Gabriel AntonioGamen, Roberto ClaudioBenvenuto, Omar GustavoFernández Lajús, EduardoCiencias AstronómicasBinaries: closeBinaries:SpectroscopicEarlyFundamental parametersStarsStars:Individual:HD 165052stars:Massive.TypeWe present a new set of radial velocity measurements of the spectroscopic binary HD 165052 obtained by disentangling high-resolution optical spectra. The longitude of the periastron (ω = 60 ± 2°) shows a variation with respect to previous studies. We have determined the apsidal motion rate of the system, ω = 12.1 ± 0.° 3 yr-1, which was used to calculate the absolute masses of the binary components: M1 = 22.5 ± 1.0Mȯ and M2 = 20.5 ± 0.9Mȯ. Analysing the separated spectra, we have reclassified the components as O7Vz and O7.5Vz stars.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1300-1311http://sedici.unlp.edu.ar/handle/10915/85536enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stt812info: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:UNLP2025-09-29T11:16:30Zoai:sedici.unlp.edu.ar:10915/85536Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:30.921SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Apsidal motion in massive close binary systems - I: HD 165052, an extreme case? |
title |
Apsidal motion in massive close binary systems - I: HD 165052, an extreme case? |
spellingShingle |
Apsidal motion in massive close binary systems - I: HD 165052, an extreme case? Ferrero Sosa, Gabriel Antonio Ciencias Astronómicas Binaries: close Binaries:Spectroscopic Early Fundamental parameters Stars Stars:Individual:HD 165052 stars:Massive. Type |
title_short |
Apsidal motion in massive close binary systems - I: HD 165052, an extreme case? |
title_full |
Apsidal motion in massive close binary systems - I: HD 165052, an extreme case? |
title_fullStr |
Apsidal motion in massive close binary systems - I: HD 165052, an extreme case? |
title_full_unstemmed |
Apsidal motion in massive close binary systems - I: HD 165052, an extreme case? |
title_sort |
Apsidal motion in massive close binary systems - I: HD 165052, an extreme case? |
dc.creator.none.fl_str_mv |
Ferrero Sosa, Gabriel Antonio Gamen, Roberto Claudio Benvenuto, Omar Gustavo Fernández Lajús, Eduardo |
author |
Ferrero Sosa, Gabriel Antonio |
author_facet |
Ferrero Sosa, Gabriel Antonio Gamen, Roberto Claudio Benvenuto, Omar Gustavo Fernández Lajús, Eduardo |
author_role |
author |
author2 |
Gamen, Roberto Claudio Benvenuto, Omar Gustavo Fernández Lajús, Eduardo |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Ciencias Astronómicas Binaries: close Binaries:Spectroscopic Early Fundamental parameters Stars Stars:Individual:HD 165052 stars:Massive. Type |
topic |
Ciencias Astronómicas Binaries: close Binaries:Spectroscopic Early Fundamental parameters Stars Stars:Individual:HD 165052 stars:Massive. Type |
dc.description.none.fl_txt_mv |
We present a new set of radial velocity measurements of the spectroscopic binary HD 165052 obtained by disentangling high-resolution optical spectra. The longitude of the periastron (ω = 60 ± 2°) shows a variation with respect to previous studies. We have determined the apsidal motion rate of the system, ω = 12.1 ± 0.° 3 yr-1, which was used to calculate the absolute masses of the binary components: M1 = 22.5 ± 1.0Mȯ and M2 = 20.5 ± 0.9Mȯ. Analysing the separated spectra, we have reclassified the components as O7Vz and O7.5Vz stars. Facultad de Ciencias Astronómicas y Geofísicas Instituto de Astrofísica de La Plata |
description |
We present a new set of radial velocity measurements of the spectroscopic binary HD 165052 obtained by disentangling high-resolution optical spectra. The longitude of the periastron (ω = 60 ± 2°) shows a variation with respect to previous studies. We have determined the apsidal motion rate of the system, ω = 12.1 ± 0.° 3 yr-1, which was used to calculate the absolute masses of the binary components: M1 = 22.5 ± 1.0Mȯ and M2 = 20.5 ± 0.9Mȯ. Analysing the separated spectra, we have reclassified the components as O7Vz and O7.5Vz stars. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 |
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/10915/85536 |
url |
http://sedici.unlp.edu.ar/handle/10915/85536 |
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/10.1093/mnras/stt812 |
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 1300-1311 |
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reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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alira@sedici.unlp.edu.ar |
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