Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars

Autores
Hubrig, S.; Schöller, M.; Ilyin, I.; Kharchenko, N. V.; Oskinova, L. M.; Langer, N.; Gonzalez, Jorge Federico; Kholtygin, A. F.; Briquet, M.; Magori Collaboration
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. Theories on the origin of magnetic fields in massive stars remain poorly developed, because the properties of their magnetic field as function of stellar parameters could not yet be investigated. Additional observations are of utmost importance to constrain the conditions that are conducive to magnetic fields and to determine first trends about their occurrence rate and field strength distribution. Aims: To investigate whether magnetic fields in massive stars are ubiquitous or appear only in stars with a specific spectral classification, certain ages, or in a special environment, we acquired 67 new spectropolarimetric observations for 30 massive stars. Among the observed sample, roughly one third of the stars are probable members of clusters at different ages, whereas the remaining stars are field stars not known to belong to any cluster or association. Methods: Spectropolarimetric observations were obtained during four different nights using the low-resolution spectropolarimetric mode of FOcal Reducer low dispersion Spectrograph (FORS 2) mounted on the 8-m Antu telescope of the VLT. Furthermore, we present a number of follow-up observations carried out with the high-resolution spectropolarimeters SOFIN mounted at the Nordic Optical Telescope (NOT) and HARPS mounted at the ESO 3.6 m between 2008 and 2011. To assess the membership in open clusters and associations, we used astrometric catalogues with the highest quality kinematic and photometric data currently available. Results: The presence of a magnetic field is confirmed in nine stars previously observed with FORS 1/2: HD 36879, HD 47839, CPD-28 2561, CPD-47 2963, HD 93843, HD 148937, HD 149757, HD 328856, and HD 164794. New magnetic field detections at a significance level of at least 3σ were achieved in five stars: HD 92206c, HD 93521, HD 93632, CPD-46 8221, and HD 157857. Among the stars with a detected magnetic field, five stars belong to open clusters with high membership probability. According to previous kinematic studies, five magneticm O-type stars in our sample are candidate runaway stars.
Fil: Hubrig, S.. Leibniz-Institut für Astrophysik Potsdam (AIP); Germany;
Fil: Schöller, M.. European Southern Observatory; Germany;
Fil: Ilyin, I.. Leibniz-Institut für Astrophysik Potsdam (AIP); Germany;
Fil: Kharchenko, N. V.. Main Astronomical Observatory; Ukraine;
Fil: Oskinova, L. M.. Universität Potsdam. Institut für Physik und Astronomie; Germany;
Fil: Langer, N.. Argelander-Institut für Astronomie. Universität Bonn; Germany;
Fil: Gonzalez, Jorge Federico. Instituto de Ciencias Astronómicas, de la Tierra, y del Espacio; Argentina;
Fil: Kholtygin, A. F.. Astronomical Institute. Saint-Petersburg State University; Russia;
Fil: Briquet, M.. Institut d’Astrophysique et de Géophysique. Université de Liège; Belgium;
Fil: Magori Collaboration.
Materia
polarization
stars: early-type
kinematics and dynamics
stars: magnetic fields
stars. massive
open clusters and associations
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:11336/595

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oai_identifier_str oai:ri.conicet.gov.ar:11336/595
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field starsHubrig, S.Schöller, M.Ilyin, I.Kharchenko, N. V.Oskinova, L. M.Langer, N.Gonzalez, Jorge FedericoKholtygin, A. F.Briquet, M.Magori Collaborationpolarizationstars: early-typekinematics and dynamicsstars: magnetic fieldsstars. massiveopen clusters and associationshttps://purl.org/becyt/ford/1.3Context. Theories on the origin of magnetic fields in massive stars remain poorly developed, because the properties of their magnetic field as function of stellar parameters could not yet be investigated. Additional observations are of utmost importance to constrain the conditions that are conducive to magnetic fields and to determine first trends about their occurrence rate and field strength distribution. Aims: To investigate whether magnetic fields in massive stars are ubiquitous or appear only in stars with a specific spectral classification, certain ages, or in a special environment, we acquired 67 new spectropolarimetric observations for 30 massive stars. Among the observed sample, roughly one third of the stars are probable members of clusters at different ages, whereas the remaining stars are field stars not known to belong to any cluster or association. Methods: Spectropolarimetric observations were obtained during four different nights using the low-resolution spectropolarimetric mode of FOcal Reducer low dispersion Spectrograph (FORS 2) mounted on the 8-m Antu telescope of the VLT. Furthermore, we present a number of follow-up observations carried out with the high-resolution spectropolarimeters SOFIN mounted at the Nordic Optical Telescope (NOT) and HARPS mounted at the ESO 3.6 m between 2008 and 2011. To assess the membership in open clusters and associations, we used astrometric catalogues with the highest quality kinematic and photometric data currently available. Results: The presence of a magnetic field is confirmed in nine stars previously observed with FORS 1/2: HD 36879, HD 47839, CPD-28 2561, CPD-47 2963, HD 93843, HD 148937, HD 149757, HD 328856, and HD 164794. New magnetic field detections at a significance level of at least 3σ were achieved in five stars: HD 92206c, HD 93521, HD 93632, CPD-46 8221, and HD 157857. Among the stars with a detected magnetic field, five stars belong to open clusters with high membership probability. According to previous kinematic studies, five magneticm O-type stars in our sample are candidate runaway stars.Fil: Hubrig, S.. Leibniz-Institut für Astrophysik Potsdam (AIP); Germany;Fil: Schöller, M.. European Southern Observatory; Germany;Fil: Ilyin, I.. Leibniz-Institut für Astrophysik Potsdam (AIP); Germany;Fil: Kharchenko, N. V.. Main Astronomical Observatory; Ukraine;Fil: Oskinova, L. M.. Universität Potsdam. Institut für Physik und Astronomie; Germany;Fil: Langer, N.. Argelander-Institut für Astronomie. Universität Bonn; Germany;Fil: Gonzalez, Jorge Federico. Instituto de Ciencias Astronómicas, de la Tierra, y del Espacio; Argentina;Fil: Kholtygin, A. F.. Astronomical Institute. Saint-Petersburg State University; Russia;Fil: Briquet, M.. Institut d’Astrophysique et de Géophysique. Université de Liège; Belgium;Fil: Magori Collaboration.EDP Sciences2013-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/595Hubrig, S.; Schöller, M.; Ilyin, I.; Kharchenko, N. V.; Oskinova, L. M.; Langer, N.; Gonzalez, Jorge Federico; Kholtygin, A. F.; Briquet, M.; Magori Collaboration; Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars; EDP Sciences; Astronomy and Astrophysics; 551; 33; 3-2013; 1-13;0004-6361enginfo:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/articles/aa/abs/2013/03/aa20721-12/aa20721-12.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201220721info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:41Zoai:ri.conicet.gov.ar:11336/595instacron: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 09:48:42.266CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars
title Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars
spellingShingle Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars
Hubrig, S.
polarization
stars: early-type
kinematics and dynamics
stars: magnetic fields
stars. massive
open clusters and associations
title_short Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars
title_full Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars
title_fullStr Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars
title_full_unstemmed Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars
title_sort Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars
dc.creator.none.fl_str_mv Hubrig, S.
Schöller, M.
Ilyin, I.
Kharchenko, N. V.
Oskinova, L. M.
Langer, N.
Gonzalez, Jorge Federico
Kholtygin, A. F.
Briquet, M.
Magori Collaboration
author Hubrig, S.
author_facet Hubrig, S.
Schöller, M.
Ilyin, I.
Kharchenko, N. V.
Oskinova, L. M.
Langer, N.
Gonzalez, Jorge Federico
Kholtygin, A. F.
Briquet, M.
Magori Collaboration
author_role author
author2 Schöller, M.
Ilyin, I.
Kharchenko, N. V.
Oskinova, L. M.
Langer, N.
Gonzalez, Jorge Federico
Kholtygin, A. F.
Briquet, M.
Magori Collaboration
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv polarization
stars: early-type
kinematics and dynamics
stars: magnetic fields
stars. massive
open clusters and associations
topic polarization
stars: early-type
kinematics and dynamics
stars: magnetic fields
stars. massive
open clusters and associations
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
dc.description.none.fl_txt_mv Context. Theories on the origin of magnetic fields in massive stars remain poorly developed, because the properties of their magnetic field as function of stellar parameters could not yet be investigated. Additional observations are of utmost importance to constrain the conditions that are conducive to magnetic fields and to determine first trends about their occurrence rate and field strength distribution. Aims: To investigate whether magnetic fields in massive stars are ubiquitous or appear only in stars with a specific spectral classification, certain ages, or in a special environment, we acquired 67 new spectropolarimetric observations for 30 massive stars. Among the observed sample, roughly one third of the stars are probable members of clusters at different ages, whereas the remaining stars are field stars not known to belong to any cluster or association. Methods: Spectropolarimetric observations were obtained during four different nights using the low-resolution spectropolarimetric mode of FOcal Reducer low dispersion Spectrograph (FORS 2) mounted on the 8-m Antu telescope of the VLT. Furthermore, we present a number of follow-up observations carried out with the high-resolution spectropolarimeters SOFIN mounted at the Nordic Optical Telescope (NOT) and HARPS mounted at the ESO 3.6 m between 2008 and 2011. To assess the membership in open clusters and associations, we used astrometric catalogues with the highest quality kinematic and photometric data currently available. Results: The presence of a magnetic field is confirmed in nine stars previously observed with FORS 1/2: HD 36879, HD 47839, CPD-28 2561, CPD-47 2963, HD 93843, HD 148937, HD 149757, HD 328856, and HD 164794. New magnetic field detections at a significance level of at least 3σ were achieved in five stars: HD 92206c, HD 93521, HD 93632, CPD-46 8221, and HD 157857. Among the stars with a detected magnetic field, five stars belong to open clusters with high membership probability. According to previous kinematic studies, five magneticm O-type stars in our sample are candidate runaway stars.
Fil: Hubrig, S.. Leibniz-Institut für Astrophysik Potsdam (AIP); Germany;
Fil: Schöller, M.. European Southern Observatory; Germany;
Fil: Ilyin, I.. Leibniz-Institut für Astrophysik Potsdam (AIP); Germany;
Fil: Kharchenko, N. V.. Main Astronomical Observatory; Ukraine;
Fil: Oskinova, L. M.. Universität Potsdam. Institut für Physik und Astronomie; Germany;
Fil: Langer, N.. Argelander-Institut für Astronomie. Universität Bonn; Germany;
Fil: Gonzalez, Jorge Federico. Instituto de Ciencias Astronómicas, de la Tierra, y del Espacio; Argentina;
Fil: Kholtygin, A. F.. Astronomical Institute. Saint-Petersburg State University; Russia;
Fil: Briquet, M.. Institut d’Astrophysique et de Géophysique. Université de Liège; Belgium;
Fil: Magori Collaboration.
description Context. Theories on the origin of magnetic fields in massive stars remain poorly developed, because the properties of their magnetic field as function of stellar parameters could not yet be investigated. Additional observations are of utmost importance to constrain the conditions that are conducive to magnetic fields and to determine first trends about their occurrence rate and field strength distribution. Aims: To investigate whether magnetic fields in massive stars are ubiquitous or appear only in stars with a specific spectral classification, certain ages, or in a special environment, we acquired 67 new spectropolarimetric observations for 30 massive stars. Among the observed sample, roughly one third of the stars are probable members of clusters at different ages, whereas the remaining stars are field stars not known to belong to any cluster or association. Methods: Spectropolarimetric observations were obtained during four different nights using the low-resolution spectropolarimetric mode of FOcal Reducer low dispersion Spectrograph (FORS 2) mounted on the 8-m Antu telescope of the VLT. Furthermore, we present a number of follow-up observations carried out with the high-resolution spectropolarimeters SOFIN mounted at the Nordic Optical Telescope (NOT) and HARPS mounted at the ESO 3.6 m between 2008 and 2011. To assess the membership in open clusters and associations, we used astrometric catalogues with the highest quality kinematic and photometric data currently available. Results: The presence of a magnetic field is confirmed in nine stars previously observed with FORS 1/2: HD 36879, HD 47839, CPD-28 2561, CPD-47 2963, HD 93843, HD 148937, HD 149757, HD 328856, and HD 164794. New magnetic field detections at a significance level of at least 3σ were achieved in five stars: HD 92206c, HD 93521, HD 93632, CPD-46 8221, and HD 157857. Among the stars with a detected magnetic field, five stars belong to open clusters with high membership probability. According to previous kinematic studies, five magneticm O-type stars in our sample are candidate runaway stars.
publishDate 2013
dc.date.none.fl_str_mv 2013-03
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/11336/595
Hubrig, S.; Schöller, M.; Ilyin, I.; Kharchenko, N. V.; Oskinova, L. M.; Langer, N.; Gonzalez, Jorge Federico; Kholtygin, A. F.; Briquet, M.; Magori Collaboration; Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars; EDP Sciences; Astronomy and Astrophysics; 551; 33; 3-2013; 1-13;
0004-6361
url http://hdl.handle.net/11336/595
identifier_str_mv Hubrig, S.; Schöller, M.; Ilyin, I.; Kharchenko, N. V.; Oskinova, L. M.; Langer, N.; Gonzalez, Jorge Federico; Kholtygin, A. F.; Briquet, M.; Magori Collaboration; Exploring the origin of magnetic fields in massive stars. II. New magnetic field measurements in cluster and field stars; EDP Sciences; Astronomy and Astrophysics; 551; 33; 3-2013; 1-13;
0004-6361
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/articles/aa/abs/2013/03/aa20721-12/aa20721-12.html
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201220721
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
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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