Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula

Autores
Albacete Colombo, Juan Facundo; Morrell, Nidia Irene; Rauw, G.; Corcoran, Michael; Niemelä, Virpi Sinikka; Sana, H.
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
High-resolution optical spectroscopy of CPD -59°2636, one of the O-type stars in the open cluster Trumpler 16 in the Carina Nebula, reveals this object to be a multiple system displaying triple lines which we label as components A, B and C of spectral types O7 V, O8 V and O9 V, respectively. From our radial velocity measurements we find that the components A and B form a close binary with a period of 3.6284 d, and we obtain the first circular radial velocity orbit for this system with semi-amplitudes of 184 and 192 km s-1, leading to minimum masses of 10.1 and 9.7 M⊙. We find that the component C is a single lined binary with a period of 5.034 d and semi-amplitude of 48 km s-1. We also analyse the X-ray radiation from CPD -59°2636, finding neither appreciable overluminosity nor phase-related X-ray flux variations.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
59°2636
Binaries: general
Open clusters and associations: individual: trumpler 16
Stars: early-type
Stars: fundamental parameters
Stars: individual: CPD
X-rays: stars
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:10915/83105

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network_name_str SEDICI (UNLP)
spelling Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina NebulaAlbacete Colombo, Juan FacundoMorrell, Nidia IreneRauw, G.Corcoran, MichaelNiemelä, Virpi SinikkaSana, H.Ciencias Astronómicas59°2636Binaries: generalOpen clusters and associations: individual: trumpler 16Stars: early-typeStars: fundamental parametersStars: individual: CPDX-rays: starsHigh-resolution optical spectroscopy of CPD -59°2636, one of the O-type stars in the open cluster Trumpler 16 in the Carina Nebula, reveals this object to be a multiple system displaying triple lines which we label as components A, B and C of spectral types O7 V, O8 V and O9 V, respectively. From our radial velocity measurements we find that the components A and B form a close binary with a period of 3.6284 d, and we obtain the first circular radial velocity orbit for this system with semi-amplitudes of 184 and 192 km s-1, leading to minimum masses of 10.1 and 9.7 M⊙. We find that the component C is a single lined binary with a period of 5.034 d and semi-amplitude of 48 km s-1. We also analyse the X-ray radiation from CPD -59°2636, finding neither appreciable overluminosity nor phase-related X-ray flux variations.Facultad de Ciencias Astronómicas y Geofísicas2002info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1099-1108http://sedici.unlp.edu.ar/handle/10915/83105enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-8711.2002.05755.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:UNLP2025-09-29T11:15:50Zoai:sedici.unlp.edu.ar:10915/83105Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:50.853SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula
title Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula
spellingShingle Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula
Albacete Colombo, Juan Facundo
Ciencias Astronómicas
59°2636
Binaries: general
Open clusters and associations: individual: trumpler 16
Stars: early-type
Stars: fundamental parameters
Stars: individual: CPD
X-rays: stars
title_short Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula
title_full Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula
title_fullStr Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula
title_full_unstemmed Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula
title_sort Optical spectroscopy of X-Mega targets : IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula
dc.creator.none.fl_str_mv Albacete Colombo, Juan Facundo
Morrell, Nidia Irene
Rauw, G.
Corcoran, Michael
Niemelä, Virpi Sinikka
Sana, H.
author Albacete Colombo, Juan Facundo
author_facet Albacete Colombo, Juan Facundo
Morrell, Nidia Irene
Rauw, G.
Corcoran, Michael
Niemelä, Virpi Sinikka
Sana, H.
author_role author
author2 Morrell, Nidia Irene
Rauw, G.
Corcoran, Michael
Niemelä, Virpi Sinikka
Sana, H.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
59°2636
Binaries: general
Open clusters and associations: individual: trumpler 16
Stars: early-type
Stars: fundamental parameters
Stars: individual: CPD
X-rays: stars
topic Ciencias Astronómicas
59°2636
Binaries: general
Open clusters and associations: individual: trumpler 16
Stars: early-type
Stars: fundamental parameters
Stars: individual: CPD
X-rays: stars
dc.description.none.fl_txt_mv High-resolution optical spectroscopy of CPD -59°2636, one of the O-type stars in the open cluster Trumpler 16 in the Carina Nebula, reveals this object to be a multiple system displaying triple lines which we label as components A, B and C of spectral types O7 V, O8 V and O9 V, respectively. From our radial velocity measurements we find that the components A and B form a close binary with a period of 3.6284 d, and we obtain the first circular radial velocity orbit for this system with semi-amplitudes of 184 and 192 km s-1, leading to minimum masses of 10.1 and 9.7 M⊙. We find that the component C is a single lined binary with a period of 5.034 d and semi-amplitude of 48 km s-1. We also analyse the X-ray radiation from CPD -59°2636, finding neither appreciable overluminosity nor phase-related X-ray flux variations.
Facultad de Ciencias Astronómicas y Geofísicas
description High-resolution optical spectroscopy of CPD -59°2636, one of the O-type stars in the open cluster Trumpler 16 in the Carina Nebula, reveals this object to be a multiple system displaying triple lines which we label as components A, B and C of spectral types O7 V, O8 V and O9 V, respectively. From our radial velocity measurements we find that the components A and B form a close binary with a period of 3.6284 d, and we obtain the first circular radial velocity orbit for this system with semi-amplitudes of 184 and 192 km s-1, leading to minimum masses of 10.1 and 9.7 M⊙. We find that the component C is a single lined binary with a period of 5.034 d and semi-amplitude of 48 km s-1. We also analyse the X-ray radiation from CPD -59°2636, finding neither appreciable overluminosity nor phase-related X-ray flux variations.
publishDate 2002
dc.date.none.fl_str_mv 2002
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/10915/83105
url http://sedici.unlp.edu.ar/handle/10915/83105
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/10.1046/j.1365-8711.2002.05755.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
1099-1108
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
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instname_str Universidad Nacional de La Plata
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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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