Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II region

Autores
Gamen, Roberto Claudio; Putkuri, Cristina Ester; Morrell, Nidia Irene; Barbá, Rodolfo Héctor; Arias, Julia Inés; Maíz Apellániz, J.; Walborn, N. R.; Sota, A.; Alfaro, E. J.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aims. We study the O-type star HD 161853, which has been noted as a probable double-lined spectroscopic binary system. Methods. We secured high-resolution spectra of HD 161853 during the past nine years. We separated the two components in the system and measured their respective radial velocities for the first time. Results. We confirm that HD 161853 is an ~1 Ma old binary system consisting of an O8 V star (MA,RV ≥ 22 M⊙) and a B1-3 V star (MB,RV ≥ 7.2 M⊙) at about 1.3 kpc. From the radial velocity curve, we measure an orbital period P = 2.66765 ± 0.00001 d and an eccentricity e = 0.121 ± 0.007. Its V-band light curve is constant within 0.014 mag and does not display eclipses, from which we impose a maximum orbital inclination i = 54 deg. HD 161853 is probably associated with an H ii region and a poorly investigated very young open cluster. In addition, we detect a compact emission region at 50 arcsec to HD 161853 in 22 μm-WISE and 24 μm-Spitzer images, which may be identified as a dust wave piled up by the radiation pressure of the massive binary system.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
Materia
Ciencias Astronómicas
Binaries: spectroscopic
Stars: early-type
Stars: individual: HD 161853
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:10915/86405

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network_name_str SEDICI (UNLP)
spelling Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II regionGamen, Roberto ClaudioPutkuri, Cristina EsterMorrell, Nidia IreneBarbá, Rodolfo HéctorArias, Julia InésMaíz Apellániz, J.Walborn, N. R.Sota, A.Alfaro, E. J.Ciencias AstronómicasBinaries: spectroscopicStars: early-typeStars: individual: HD 161853Aims. We study the O-type star HD 161853, which has been noted as a probable double-lined spectroscopic binary system. Methods. We secured high-resolution spectra of HD 161853 during the past nine years. We separated the two components in the system and measured their respective radial velocities for the first time. Results. We confirm that HD 161853 is an ~1 Ma old binary system consisting of an O8 V star (M<SUB>A,RV</SUB> ≥ 22 M⊙) and a B1-3 V star (M<SUB>B,RV</SUB> ≥ 7.2 M⊙) at about 1.3 kpc. From the radial velocity curve, we measure an orbital period P = 2.66765 ± 0.00001 d and an eccentricity e = 0.121 ± 0.007. Its V-band light curve is constant within 0.014 mag and does not display eclipses, from which we impose a maximum orbital inclination i = 54 deg. HD 161853 is probably associated with an H ii region and a poorly investigated very young open cluster. In addition, we detect a compact emission region at 50 arcsec to HD 161853 in 22 μm-WISE and 24 μm-<i>Spitzer</i> images, which may be identified as a dust wave piled up by the radiation pressure of the massive binary system.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/86405enginfo:eu-repo/semantics/altIdentifier/issn/0004-6361info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201425558info: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:UNLP2025-09-29T11:16:54Zoai:sedici.unlp.edu.ar:10915/86405Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:54.389SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II region
title Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II region
spellingShingle Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II region
Gamen, Roberto Claudio
Ciencias Astronómicas
Binaries: spectroscopic
Stars: early-type
Stars: individual: HD 161853
title_short Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II region
title_full Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II region
title_fullStr Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II region
title_full_unstemmed Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II region
title_sort Spectroscopic and photometric analysis of the early-type spectroscopic binary HD 161853 in the centre of an H II region
dc.creator.none.fl_str_mv Gamen, Roberto Claudio
Putkuri, Cristina Ester
Morrell, Nidia Irene
Barbá, Rodolfo Héctor
Arias, Julia Inés
Maíz Apellániz, J.
Walborn, N. R.
Sota, A.
Alfaro, E. J.
author Gamen, Roberto Claudio
author_facet Gamen, Roberto Claudio
Putkuri, Cristina Ester
Morrell, Nidia Irene
Barbá, Rodolfo Héctor
Arias, Julia Inés
Maíz Apellániz, J.
Walborn, N. R.
Sota, A.
Alfaro, E. J.
author_role author
author2 Putkuri, Cristina Ester
Morrell, Nidia Irene
Barbá, Rodolfo Héctor
Arias, Julia Inés
Maíz Apellániz, J.
Walborn, N. R.
Sota, A.
Alfaro, E. J.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Binaries: spectroscopic
Stars: early-type
Stars: individual: HD 161853
topic Ciencias Astronómicas
Binaries: spectroscopic
Stars: early-type
Stars: individual: HD 161853
dc.description.none.fl_txt_mv Aims. We study the O-type star HD 161853, which has been noted as a probable double-lined spectroscopic binary system. Methods. We secured high-resolution spectra of HD 161853 during the past nine years. We separated the two components in the system and measured their respective radial velocities for the first time. Results. We confirm that HD 161853 is an ~1 Ma old binary system consisting of an O8 V star (M<SUB>A,RV</SUB> ≥ 22 M⊙) and a B1-3 V star (M<SUB>B,RV</SUB> ≥ 7.2 M⊙) at about 1.3 kpc. From the radial velocity curve, we measure an orbital period P = 2.66765 ± 0.00001 d and an eccentricity e = 0.121 ± 0.007. Its V-band light curve is constant within 0.014 mag and does not display eclipses, from which we impose a maximum orbital inclination i = 54 deg. HD 161853 is probably associated with an H ii region and a poorly investigated very young open cluster. In addition, we detect a compact emission region at 50 arcsec to HD 161853 in 22 μm-WISE and 24 μm-<i>Spitzer</i> images, which may be identified as a dust wave piled up by the radiation pressure of the massive binary system.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
description Aims. We study the O-type star HD 161853, which has been noted as a probable double-lined spectroscopic binary system. Methods. We secured high-resolution spectra of HD 161853 during the past nine years. We separated the two components in the system and measured their respective radial velocities for the first time. Results. We confirm that HD 161853 is an ~1 Ma old binary system consisting of an O8 V star (M<SUB>A,RV</SUB> ≥ 22 M⊙) and a B1-3 V star (M<SUB>B,RV</SUB> ≥ 7.2 M⊙) at about 1.3 kpc. From the radial velocity curve, we measure an orbital period P = 2.66765 ± 0.00001 d and an eccentricity e = 0.121 ± 0.007. Its V-band light curve is constant within 0.014 mag and does not display eclipses, from which we impose a maximum orbital inclination i = 54 deg. HD 161853 is probably associated with an H ii region and a poorly investigated very young open cluster. In addition, we detect a compact emission region at 50 arcsec to HD 161853 in 22 μm-WISE and 24 μm-<i>Spitzer</i> images, which may be identified as a dust wave piled up by the radiation pressure of the massive binary system.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/86405
url http://sedici.unlp.edu.ar/handle/10915/86405
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/10.1051/0004-6361/201425558
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
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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