B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula
- Autores
- Gonzalez, Jorge Federico; Hubrig, S.; Przybilla, Norbert; Carroll, T. A.; Nieva, Maria Fernanda; Ilyin, I.; Järvinen, S.; Morel, T.; Schöller, M.; Castro, N.; Barba, Rodolfo Hector; de Koter, A.; Schneider, F. R. N.; Kholtygin, A. F.; Butler, K.; Veramendi Pont, María Eugenia; Langer, N.; The BOB Collaboration
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- HD 164492C is a spectroscopic triple stellar system that has beenrecently detected to possess a strong magnetic field. We have obtainedhigh-resolution spectroscopic and spectropolarimetric observations overa timespan of two years and derived physical, chemical, and magneticproperties for this object. The system is formed by an eccentric closespectroscopic binary (Ca1-Ca2) with a period of 12.5 days, and a massivetertiary Cb. We calculated the orbital parameters of the close pair,reconstructed the spectra of the three components, and determinedatmospheric parameters and chemical abundances by spectral synthesis.From spectropolarimetric observations, multi-epoch measurements of thelongitudinal magnetic fields were obtained. The magnetic field isstrongly variable on timescales of a few days, with a most probableperiod in the range of 1.4-1.6 days. Star Cb with Teff? 25 000 K is the apparently fastest rotator and the most massivestar of this triple system and has anomalous chemical abundances with amarked overabundance of helium, 0.35±0.04 by number. Weidentified this star as being responsible for the observed magneticfield, although the presence of magnetic fields in the components of theCa pair cannot be excluded. Star Ca1 with a temperature of about 24 000K presents a normal chemical pattern, while the least massive star Ca2is a mid-B type star (Teff ? 15 000 K) with anoverabundance of silicon. The obtained stellar parameters of the systemcomponents suggest a distance of 1.5 kpc and an age of 10-15 Myr.
Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Fil: Hubrig, S.. Leibniz Institut für Astrophysik; Alemania
Fil: Przybilla, Norbert. Universidad de Innsbruck; Austria
Fil: Carroll, T. A.. Leibniz Institut für Astrophysik; Alemania
Fil: Nieva, Maria Fernanda. Universidad de Innsbruck; Austria
Fil: Ilyin, I.. Leibniz Institut für Astrophysik; Alemania
Fil: Järvinen, S.. Leibniz Institut für Astrophysik; Alemania
Fil: Morel, T.. Université de Liège; Bélgica
Fil: Schöller, M.. European Southern Observatory; Alemania
Fil: Castro, N.. University of Michigan; Estados Unidos. Universitat Bonn; Alemania
Fil: Barba, Rodolfo Hector. Universidad de La Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: de Koter, A.. University of Amsterdam; Países Bajos. Katholikie Universiteit Leuven; Bélgica
Fil: Schneider, F. R. N.. Denys Wilkinson Building; Reino Unido
Fil: Kholtygin, A. F.. St. Petersburg State University; Rusia
Fil: Butler, K.. Universitäts-Sternwarte München; Alemania
Fil: Veramendi Pont, María Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico ; Argentina
Fil: Langer, N.. Universitat Bonn; Alemania
Fil: The BOB Collaboration. No especifica; - Materia
-
STARS: EARLY TYPE
BINARIES: SPECTROSCOPIC
STARS: MAGNETIC FIELDS
STARS: ABUNDANCES
STARS: FUNDAMENTAL PARAMETERS
STARS: INDIVIDUAL: HD 164492C - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/63184
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CONICET Digital (CONICET) |
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B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebulaGonzalez, Jorge FedericoHubrig, S.Przybilla, NorbertCarroll, T. A.Nieva, Maria FernandaIlyin, I.Järvinen, S.Morel, T.Schöller, M.Castro, N.Barba, Rodolfo Hectorde Koter, A.Schneider, F. R. N.Kholtygin, A. F.Butler, K.Veramendi Pont, María EugeniaLanger, N.The BOB CollaborationSTARS: EARLY TYPEBINARIES: SPECTROSCOPICSTARS: MAGNETIC FIELDSSTARS: ABUNDANCESSTARS: FUNDAMENTAL PARAMETERSSTARS: INDIVIDUAL: HD 164492Chttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1HD 164492C is a spectroscopic triple stellar system that has beenrecently detected to possess a strong magnetic field. We have obtainedhigh-resolution spectroscopic and spectropolarimetric observations overa timespan of two years and derived physical, chemical, and magneticproperties for this object. The system is formed by an eccentric closespectroscopic binary (Ca1-Ca2) with a period of 12.5 days, and a massivetertiary Cb. We calculated the orbital parameters of the close pair,reconstructed the spectra of the three components, and determinedatmospheric parameters and chemical abundances by spectral synthesis.From spectropolarimetric observations, multi-epoch measurements of thelongitudinal magnetic fields were obtained. The magnetic field isstrongly variable on timescales of a few days, with a most probableperiod in the range of 1.4-1.6 days. Star Cb with T<sub>eff</sub>? 25 000 K is the apparently fastest rotator and the most massivestar of this triple system and has anomalous chemical abundances with amarked overabundance of helium, 0.35±0.04 by number. Weidentified this star as being responsible for the observed magneticfield, although the presence of magnetic fields in the components of theCa pair cannot be excluded. Star Ca1 with a temperature of about 24 000K presents a normal chemical pattern, while the least massive star Ca2is a mid-B type star (T<sub>eff</sub> ? 15 000 K) with anoverabundance of silicon. The obtained stellar parameters of the systemcomponents suggest a distance of 1.5 kpc and an age of 10-15 Myr.Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Hubrig, S.. Leibniz Institut für Astrophysik; AlemaniaFil: Przybilla, Norbert. Universidad de Innsbruck; AustriaFil: Carroll, T. A.. Leibniz Institut für Astrophysik; AlemaniaFil: Nieva, Maria Fernanda. Universidad de Innsbruck; AustriaFil: Ilyin, I.. Leibniz Institut für Astrophysik; AlemaniaFil: Järvinen, S.. Leibniz Institut für Astrophysik; AlemaniaFil: Morel, T.. Université de Liège; BélgicaFil: Schöller, M.. European Southern Observatory; AlemaniaFil: Castro, N.. University of Michigan; Estados Unidos. Universitat Bonn; AlemaniaFil: Barba, Rodolfo Hector. Universidad de La Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: de Koter, A.. University of Amsterdam; Países Bajos. Katholikie Universiteit Leuven; BélgicaFil: Schneider, F. R. N.. Denys Wilkinson Building; Reino UnidoFil: Kholtygin, A. F.. St. Petersburg State University; RusiaFil: Butler, K.. Universitäts-Sternwarte München; AlemaniaFil: Veramendi Pont, María Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico ; ArgentinaFil: Langer, N.. Universitat Bonn; AlemaniaFil: The BOB Collaboration. No especifica;Wiley Blackwell Publishing, Inc2017-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63184Gonzalez, Jorge Federico; Hubrig, S.; Przybilla, Norbert; Carroll, T. A.; Nieva, Maria Fernanda; et al.; B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 467; 1; 1-2017; 437-4500035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stx105info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/467/1/437/2907764info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1701.03514info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:43:13Zoai:ri.conicet.gov.ar:11336/63184instacron: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 10:43:13.827CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula |
title |
B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula |
spellingShingle |
B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula Gonzalez, Jorge Federico STARS: EARLY TYPE BINARIES: SPECTROSCOPIC STARS: MAGNETIC FIELDS STARS: ABUNDANCES STARS: FUNDAMENTAL PARAMETERS STARS: INDIVIDUAL: HD 164492C |
title_short |
B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula |
title_full |
B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula |
title_fullStr |
B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula |
title_full_unstemmed |
B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula |
title_sort |
B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula |
dc.creator.none.fl_str_mv |
Gonzalez, Jorge Federico Hubrig, S. Przybilla, Norbert Carroll, T. A. Nieva, Maria Fernanda Ilyin, I. Järvinen, S. Morel, T. Schöller, M. Castro, N. Barba, Rodolfo Hector de Koter, A. Schneider, F. R. N. Kholtygin, A. F. Butler, K. Veramendi Pont, María Eugenia Langer, N. The BOB Collaboration |
author |
Gonzalez, Jorge Federico |
author_facet |
Gonzalez, Jorge Federico Hubrig, S. Przybilla, Norbert Carroll, T. A. Nieva, Maria Fernanda Ilyin, I. Järvinen, S. Morel, T. Schöller, M. Castro, N. Barba, Rodolfo Hector de Koter, A. Schneider, F. R. N. Kholtygin, A. F. Butler, K. Veramendi Pont, María Eugenia Langer, N. The BOB Collaboration |
author_role |
author |
author2 |
Hubrig, S. Przybilla, Norbert Carroll, T. A. Nieva, Maria Fernanda Ilyin, I. Järvinen, S. Morel, T. Schöller, M. Castro, N. Barba, Rodolfo Hector de Koter, A. Schneider, F. R. N. Kholtygin, A. F. Butler, K. Veramendi Pont, María Eugenia Langer, N. The BOB Collaboration |
author2_role |
author author author author author author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
STARS: EARLY TYPE BINARIES: SPECTROSCOPIC STARS: MAGNETIC FIELDS STARS: ABUNDANCES STARS: FUNDAMENTAL PARAMETERS STARS: INDIVIDUAL: HD 164492C |
topic |
STARS: EARLY TYPE BINARIES: SPECTROSCOPIC STARS: MAGNETIC FIELDS STARS: ABUNDANCES STARS: FUNDAMENTAL PARAMETERS STARS: INDIVIDUAL: HD 164492C |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
HD 164492C is a spectroscopic triple stellar system that has beenrecently detected to possess a strong magnetic field. We have obtainedhigh-resolution spectroscopic and spectropolarimetric observations overa timespan of two years and derived physical, chemical, and magneticproperties for this object. The system is formed by an eccentric closespectroscopic binary (Ca1-Ca2) with a period of 12.5 days, and a massivetertiary Cb. We calculated the orbital parameters of the close pair,reconstructed the spectra of the three components, and determinedatmospheric parameters and chemical abundances by spectral synthesis.From spectropolarimetric observations, multi-epoch measurements of thelongitudinal magnetic fields were obtained. The magnetic field isstrongly variable on timescales of a few days, with a most probableperiod in the range of 1.4-1.6 days. Star Cb with T<sub>eff</sub>? 25 000 K is the apparently fastest rotator and the most massivestar of this triple system and has anomalous chemical abundances with amarked overabundance of helium, 0.35±0.04 by number. Weidentified this star as being responsible for the observed magneticfield, although the presence of magnetic fields in the components of theCa pair cannot be excluded. Star Ca1 with a temperature of about 24 000K presents a normal chemical pattern, while the least massive star Ca2is a mid-B type star (T<sub>eff</sub> ? 15 000 K) with anoverabundance of silicon. The obtained stellar parameters of the systemcomponents suggest a distance of 1.5 kpc and an age of 10-15 Myr. Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina Fil: Hubrig, S.. Leibniz Institut für Astrophysik; Alemania Fil: Przybilla, Norbert. Universidad de Innsbruck; Austria Fil: Carroll, T. A.. Leibniz Institut für Astrophysik; Alemania Fil: Nieva, Maria Fernanda. Universidad de Innsbruck; Austria Fil: Ilyin, I.. Leibniz Institut für Astrophysik; Alemania Fil: Järvinen, S.. Leibniz Institut für Astrophysik; Alemania Fil: Morel, T.. Université de Liège; Bélgica Fil: Schöller, M.. European Southern Observatory; Alemania Fil: Castro, N.. University of Michigan; Estados Unidos. Universitat Bonn; Alemania Fil: Barba, Rodolfo Hector. Universidad de La Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: de Koter, A.. University of Amsterdam; Países Bajos. Katholikie Universiteit Leuven; Bélgica Fil: Schneider, F. R. N.. Denys Wilkinson Building; Reino Unido Fil: Kholtygin, A. F.. St. Petersburg State University; Rusia Fil: Butler, K.. Universitäts-Sternwarte München; Alemania Fil: Veramendi Pont, María Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico ; Argentina Fil: Langer, N.. Universitat Bonn; Alemania Fil: The BOB Collaboration. No especifica; |
description |
HD 164492C is a spectroscopic triple stellar system that has beenrecently detected to possess a strong magnetic field. We have obtainedhigh-resolution spectroscopic and spectropolarimetric observations overa timespan of two years and derived physical, chemical, and magneticproperties for this object. The system is formed by an eccentric closespectroscopic binary (Ca1-Ca2) with a period of 12.5 days, and a massivetertiary Cb. We calculated the orbital parameters of the close pair,reconstructed the spectra of the three components, and determinedatmospheric parameters and chemical abundances by spectral synthesis.From spectropolarimetric observations, multi-epoch measurements of thelongitudinal magnetic fields were obtained. The magnetic field isstrongly variable on timescales of a few days, with a most probableperiod in the range of 1.4-1.6 days. Star Cb with T<sub>eff</sub>? 25 000 K is the apparently fastest rotator and the most massivestar of this triple system and has anomalous chemical abundances with amarked overabundance of helium, 0.35±0.04 by number. Weidentified this star as being responsible for the observed magneticfield, although the presence of magnetic fields in the components of theCa pair cannot be excluded. Star Ca1 with a temperature of about 24 000K presents a normal chemical pattern, while the least massive star Ca2is a mid-B type star (T<sub>eff</sub> ? 15 000 K) with anoverabundance of silicon. The obtained stellar parameters of the systemcomponents suggest a distance of 1.5 kpc and an age of 10-15 Myr. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01 |
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/11336/63184 Gonzalez, Jorge Federico; Hubrig, S.; Przybilla, Norbert; Carroll, T. A.; Nieva, Maria Fernanda; et al.; B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 467; 1; 1-2017; 437-450 0035-8711 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/63184 |
identifier_str_mv |
Gonzalez, Jorge Federico; Hubrig, S.; Przybilla, Norbert; Carroll, T. A.; Nieva, Maria Fernanda; et al.; B fields in OB stars (BOB): The magnetic triple stellar system HD 164492C in the Trifid nebula; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 467; 1; 1-2017; 437-450 0035-8711 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stx105 info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/467/1/437/2907764 info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1701.03514 |
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 |
dc.publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
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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1844614466896920576 |
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13.070432 |