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
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/83105
Ver los metadatos del registro completo
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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:UNLP2025-10-22T16:56:38Zoai: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:13292025-10-22 16:56:38.427SEDICI (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 |
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2002 |
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http://sedici.unlp.edu.ar/handle/10915/83105 |
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eng |
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