On the multiplicity of the zero-age main-sequence O star Herschel 36

Autores
Arias, Julia Ines; Barba, Rodolfo Hector; Gamen, Roberto Claudio; Morrell, Nidia Irene; Maíz Apellániz, Jesús; Alfaro, Emilio J.; Sota, Alfredo; Walborn, Nolan R.; Moni Bidin, Christian
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the analysis of high-resolution optical spectroscopic observations of the zero-age main-sequence O star Herschel 36 spanning six years. This star is definitely a multiple system, with at least three components detected in its spectrum. Based on our radial-velocity (RV) study, we propose a picture of a close massive binary and a more distant companion, most probably in wide orbit about each other. The orbital solution for the binary, whose components we identify as O9 V and B0.5 V, is characterized by a period of 1.5415 ± 0.0006 days. With a spectral type O7.5 V, the third body is the most luminous component of the system and also presents RV variations with a period close to 498 days. Some possible hypotheses to explain the variability are briefly addressed and further observations are suggested.
Fil: Arias, Julia Ines. Universidad de la Serena. Facultad de Ciencias; Chile
Fil: Barba, Rodolfo Hector. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina. Universidad de la Serena; Chile
Fil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
Fil: Morrell, Nidia Irene. The Carnegie Observatories. Las Campanas Observatory; Chile
Fil: Maíz Apellániz, Jesús. Space Telescope Science Institute; Estados Unidos
Fil: Alfaro, Emilio J.. Consejo Superior de Investigaciones Cientificas. Instituto de AstrofÍsica de Andalucía; España
Fil: Sota, Alfredo. Consejo Superior de Investigaciones Cientificas. Instituto de AstrofÍsica de Andalucía; España
Fil: Walborn, Nolan R.. Space Telescope Science Institute; Estados Unidos
Fil: Moni Bidin, Christian. Universidad de Concepción; Chile
Materia
Close Binaries
Early Type Stars
Herschel 36 (Estrella)
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/9584
Acceder
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network_name_str CONICET Digital (CONICET)
spelling On the multiplicity of the zero-age main-sequence O star Herschel 36Arias, Julia InesBarba, Rodolfo HectorGamen, Roberto ClaudioMorrell, Nidia IreneMaíz Apellániz, JesúsAlfaro, Emilio J.Sota, AlfredoWalborn, Nolan R.Moni Bidin, ChristianClose BinariesEarly Type StarsHerschel 36 (Estrella)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the analysis of high-resolution optical spectroscopic observations of the zero-age main-sequence O star Herschel 36 spanning six years. This star is definitely a multiple system, with at least three components detected in its spectrum. Based on our radial-velocity (RV) study, we propose a picture of a close massive binary and a more distant companion, most probably in wide orbit about each other. The orbital solution for the binary, whose components we identify as O9 V and B0.5 V, is characterized by a period of 1.5415 ± 0.0006 days. With a spectral type O7.5 V, the third body is the most luminous component of the system and also presents RV variations with a period close to 498 days. Some possible hypotheses to explain the variability are briefly addressed and further observations are suggested.Fil: Arias, Julia Ines. Universidad de la Serena. Facultad de Ciencias; ChileFil: Barba, Rodolfo Hector. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina. Universidad de la Serena; ChileFil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; ArgentinaFil: Morrell, Nidia Irene. The Carnegie Observatories. Las Campanas Observatory; ChileFil: Maíz Apellániz, Jesús. Space Telescope Science Institute; Estados UnidosFil: Alfaro, Emilio J.. Consejo Superior de Investigaciones Cientificas. Instituto de AstrofÍsica de Andalucía; EspañaFil: Sota, Alfredo. Consejo Superior de Investigaciones Cientificas. Instituto de AstrofÍsica de Andalucía; EspañaFil: Walborn, Nolan R.. Space Telescope Science Institute; Estados UnidosFil: Moni Bidin, Christian. Universidad de Concepción; ChileIop Publishing2010-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/9584Arias, Julia Ines; Barba, Rodolfo Hector; Gamen, Roberto Claudio; Morrell, Nidia Irene; Maíz Apellániz, Jesús; et al.; On the multiplicity of the zero-age main-sequence O star Herschel 36; Iop Publishing; Astrophysical Journal; 710; 1; 2-2010; 30-340004-637Xenginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/2041-8205/710/1/L30/metainfo:eu-repo/semantics/altIdentifier/doi/10.1088/2041-8205/710/1/L30info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:12Zoai:ri.conicet.gov.ar:11336/9584instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:45:13.192CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the multiplicity of the zero-age main-sequence O star Herschel 36
title On the multiplicity of the zero-age main-sequence O star Herschel 36
spellingShingle On the multiplicity of the zero-age main-sequence O star Herschel 36
Arias, Julia Ines
Close Binaries
Early Type Stars
Herschel 36 (Estrella)
title_short On the multiplicity of the zero-age main-sequence O star Herschel 36
title_full On the multiplicity of the zero-age main-sequence O star Herschel 36
title_fullStr On the multiplicity of the zero-age main-sequence O star Herschel 36
title_full_unstemmed On the multiplicity of the zero-age main-sequence O star Herschel 36
title_sort On the multiplicity of the zero-age main-sequence O star Herschel 36
dc.creator.none.fl_str_mv Arias, Julia Ines
Barba, Rodolfo Hector
Gamen, Roberto Claudio
Morrell, Nidia Irene
Maíz Apellániz, Jesús
Alfaro, Emilio J.
Sota, Alfredo
Walborn, Nolan R.
Moni Bidin, Christian
author Arias, Julia Ines
author_facet Arias, Julia Ines
Barba, Rodolfo Hector
Gamen, Roberto Claudio
Morrell, Nidia Irene
Maíz Apellániz, Jesús
Alfaro, Emilio J.
Sota, Alfredo
Walborn, Nolan R.
Moni Bidin, Christian
author_role author
author2 Barba, Rodolfo Hector
Gamen, Roberto Claudio
Morrell, Nidia Irene
Maíz Apellániz, Jesús
Alfaro, Emilio J.
Sota, Alfredo
Walborn, Nolan R.
Moni Bidin, Christian
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Close Binaries
Early Type Stars
Herschel 36 (Estrella)
topic Close Binaries
Early Type Stars
Herschel 36 (Estrella)
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present the analysis of high-resolution optical spectroscopic observations of the zero-age main-sequence O star Herschel 36 spanning six years. This star is definitely a multiple system, with at least three components detected in its spectrum. Based on our radial-velocity (RV) study, we propose a picture of a close massive binary and a more distant companion, most probably in wide orbit about each other. The orbital solution for the binary, whose components we identify as O9 V and B0.5 V, is characterized by a period of 1.5415 ± 0.0006 days. With a spectral type O7.5 V, the third body is the most luminous component of the system and also presents RV variations with a period close to 498 days. Some possible hypotheses to explain the variability are briefly addressed and further observations are suggested.
Fil: Arias, Julia Ines. Universidad de la Serena. Facultad de Ciencias; Chile
Fil: Barba, Rodolfo Hector. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina. Universidad de la Serena; Chile
Fil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
Fil: Morrell, Nidia Irene. The Carnegie Observatories. Las Campanas Observatory; Chile
Fil: Maíz Apellániz, Jesús. Space Telescope Science Institute; Estados Unidos
Fil: Alfaro, Emilio J.. Consejo Superior de Investigaciones Cientificas. Instituto de AstrofÍsica de Andalucía; España
Fil: Sota, Alfredo. Consejo Superior de Investigaciones Cientificas. Instituto de AstrofÍsica de Andalucía; España
Fil: Walborn, Nolan R.. Space Telescope Science Institute; Estados Unidos
Fil: Moni Bidin, Christian. Universidad de Concepción; Chile
description We present the analysis of high-resolution optical spectroscopic observations of the zero-age main-sequence O star Herschel 36 spanning six years. This star is definitely a multiple system, with at least three components detected in its spectrum. Based on our radial-velocity (RV) study, we propose a picture of a close massive binary and a more distant companion, most probably in wide orbit about each other. The orbital solution for the binary, whose components we identify as O9 V and B0.5 V, is characterized by a period of 1.5415 ± 0.0006 days. With a spectral type O7.5 V, the third body is the most luminous component of the system and also presents RV variations with a period close to 498 days. Some possible hypotheses to explain the variability are briefly addressed and further observations are suggested.
publishDate 2010
dc.date.none.fl_str_mv 2010-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/9584
Arias, Julia Ines; Barba, Rodolfo Hector; Gamen, Roberto Claudio; Morrell, Nidia Irene; Maíz Apellániz, Jesús; et al.; On the multiplicity of the zero-age main-sequence O star Herschel 36; Iop Publishing; Astrophysical Journal; 710; 1; 2-2010; 30-34
0004-637X
url http://hdl.handle.net/11336/9584
identifier_str_mv Arias, Julia Ines; Barba, Rodolfo Hector; Gamen, Roberto Claudio; Morrell, Nidia Irene; Maíz Apellániz, Jesús; et al.; On the multiplicity of the zero-age main-sequence O star Herschel 36; Iop Publishing; Astrophysical Journal; 710; 1; 2-2010; 30-34
0004-637X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/2041-8205/710/1/L30/meta
info:eu-repo/semantics/altIdentifier/doi/10.1088/2041-8205/710/1/L30
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Iop Publishing
publisher.none.fl_str_mv Iop Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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