The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql

Autores
Hubrig, S.; Ilyin, I.; Briquet, M.; Schöller, M.; Gonzalez, Jorge Federico; Nuñez, Natalia Edith; De Cat, P.; Morel, T.
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aims. Only for very few β Cephei stars has the behaviour of the magnetic field been studied over the rotation cycle. During the past two years we have obtained multi-epoch polarimetric spectra of the β Cephei star V1449 Aql with SOFIN at the Nordic Optical Telescope to search for a rotation period and to constrain the geometry of the magnetic field. Methods. The mean longitudinal magnetic field is measured at 13 different epochs. The new measurements, together with the previous FORS 1 measurements, have been used for the frequency analysis and the characterization of the magnetic field. Results. V1449 Aql so far possesses the strongest longitudinal magnetic field of up to 700 G among the β Cephei stars. The resulting periodogram displays three dominant peaks with the highest peak at f = 0.0720 d-1 corresponding to a period P = 13 893. The magnetic field geometry can likely be described by a centred dipole with a polar magnetic field strength Bd around 3 kG and an inclination angle β of the magnetic axis to the rotation axis of 76 ± 4°. As of today, the strongest longitudinal magnetic fields are detected in the β Cephei stars V1449 Aql and ξ1 CMa with large radial velocity amplitudes. Their peak-to-peak amplitudes reach ∼90 km s-1 and ∼33 km s-1, respectively. Concluding, we briefly discuss the position of the currently known eight magnetic β Cephei and candidate β Cephei stars in the Hertzsprung-Russell (H-R) diagram.
Fil: Hubrig, S.. Leibniz-Institut für Astrophysik Potsdam; Alemania
Fil: Ilyin, I.. Leibniz-Institut für Astrophysik Potsdam; Alemania
Fil: Briquet, M.. Katholikie Universiteit Leuven; Bélgica. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
Fil: Schöller, M.. European Southern Observatory; Alemania
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: Nuñez, Natalia Edith. 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: De Cat, P.. Koninklijke Sterrenwacht van België; Bélgica
Fil: Morel, T.. Université de Liège; Bélgica
Materia
STARS: EARLY-TYPE
STARS: INDIVIDUAL: V1449 AQL
STARS: MAGNETIC FIELD
STARS: OSCILLATIONS
STARS: ROTATION
STARS: VARIABLES: GENERAL
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:11336/127452
Acceder
id CONICETDig_24db809f4b3b3e0107b6cdf8303ee512
oai_identifier_str oai:ri.conicet.gov.ar:11336/127452
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 AqlHubrig, S.Ilyin, I.Briquet, M.Schöller, M.Gonzalez, Jorge FedericoNuñez, Natalia EdithDe Cat, P.Morel, T.STARS: EARLY-TYPESTARS: INDIVIDUAL: V1449 AQLSTARS: MAGNETIC FIELDSTARS: OSCILLATIONSSTARS: ROTATIONSTARS: VARIABLES: GENERALhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Aims. Only for very few β Cephei stars has the behaviour of the magnetic field been studied over the rotation cycle. During the past two years we have obtained multi-epoch polarimetric spectra of the β Cephei star V1449 Aql with SOFIN at the Nordic Optical Telescope to search for a rotation period and to constrain the geometry of the magnetic field. Methods. The mean longitudinal magnetic field is measured at 13 different epochs. The new measurements, together with the previous FORS 1 measurements, have been used for the frequency analysis and the characterization of the magnetic field. Results. V1449 Aql so far possesses the strongest longitudinal magnetic field of up to 700 G among the β Cephei stars. The resulting periodogram displays three dominant peaks with the highest peak at f = 0.0720 d-1 corresponding to a period P = 13 893. The magnetic field geometry can likely be described by a centred dipole with a polar magnetic field strength Bd around 3 kG and an inclination angle β of the magnetic axis to the rotation axis of 76 ± 4°. As of today, the strongest longitudinal magnetic fields are detected in the β Cephei stars V1449 Aql and ξ1 CMa with large radial velocity amplitudes. Their peak-to-peak amplitudes reach ∼90 km s-1 and ∼33 km s-1, respectively. Concluding, we briefly discuss the position of the currently known eight magnetic β Cephei and candidate β Cephei stars in the Hertzsprung-Russell (H-R) diagram.Fil: Hubrig, S.. Leibniz-Institut für Astrophysik Potsdam; AlemaniaFil: Ilyin, I.. Leibniz-Institut für Astrophysik Potsdam; AlemaniaFil: Briquet, M.. Katholikie Universiteit Leuven; Bélgica. Centre National de la Recherche Scientifique. Observatoire de Paris; FranciaFil: Schöller, M.. European Southern Observatory; AlemaniaFil: 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: Nuñez, Natalia Edith. 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: De Cat, P.. Koninklijke Sterrenwacht van België; BélgicaFil: Morel, T.. Université de Liège; BélgicaEDP Sciences2011-06-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/127452Hubrig, S.; Ilyin, I.; Briquet, M.; Schöller, M.; Gonzalez, Jorge Federico; et al.; The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql; EDP Sciences; Astronomy and Astrophysics; 531; 17-6-2011; 20-250004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201117261info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2011/07/aa17261-11/aa17261-11.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:59:49Zoai:ri.conicet.gov.ar:11336/127452instacron: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 09:59:50.112CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql
title The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql
spellingShingle The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql
Hubrig, S.
STARS: EARLY-TYPE
STARS: INDIVIDUAL: V1449 AQL
STARS: MAGNETIC FIELD
STARS: OSCILLATIONS
STARS: ROTATION
STARS: VARIABLES: GENERAL
title_short The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql
title_full The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql
title_fullStr The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql
title_full_unstemmed The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql
title_sort The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql
dc.creator.none.fl_str_mv Hubrig, S.
Ilyin, I.
Briquet, M.
Schöller, M.
Gonzalez, Jorge Federico
Nuñez, Natalia Edith
De Cat, P.
Morel, T.
author Hubrig, S.
author_facet Hubrig, S.
Ilyin, I.
Briquet, M.
Schöller, M.
Gonzalez, Jorge Federico
Nuñez, Natalia Edith
De Cat, P.
Morel, T.
author_role author
author2 Ilyin, I.
Briquet, M.
Schöller, M.
Gonzalez, Jorge Federico
Nuñez, Natalia Edith
De Cat, P.
Morel, T.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv STARS: EARLY-TYPE
STARS: INDIVIDUAL: V1449 AQL
STARS: MAGNETIC FIELD
STARS: OSCILLATIONS
STARS: ROTATION
STARS: VARIABLES: GENERAL
topic STARS: EARLY-TYPE
STARS: INDIVIDUAL: V1449 AQL
STARS: MAGNETIC FIELD
STARS: OSCILLATIONS
STARS: ROTATION
STARS: VARIABLES: GENERAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Aims. Only for very few β Cephei stars has the behaviour of the magnetic field been studied over the rotation cycle. During the past two years we have obtained multi-epoch polarimetric spectra of the β Cephei star V1449 Aql with SOFIN at the Nordic Optical Telescope to search for a rotation period and to constrain the geometry of the magnetic field. Methods. The mean longitudinal magnetic field is measured at 13 different epochs. The new measurements, together with the previous FORS 1 measurements, have been used for the frequency analysis and the characterization of the magnetic field. Results. V1449 Aql so far possesses the strongest longitudinal magnetic field of up to 700 G among the β Cephei stars. The resulting periodogram displays three dominant peaks with the highest peak at f = 0.0720 d-1 corresponding to a period P = 13 893. The magnetic field geometry can likely be described by a centred dipole with a polar magnetic field strength Bd around 3 kG and an inclination angle β of the magnetic axis to the rotation axis of 76 ± 4°. As of today, the strongest longitudinal magnetic fields are detected in the β Cephei stars V1449 Aql and ξ1 CMa with large radial velocity amplitudes. Their peak-to-peak amplitudes reach ∼90 km s-1 and ∼33 km s-1, respectively. Concluding, we briefly discuss the position of the currently known eight magnetic β Cephei and candidate β Cephei stars in the Hertzsprung-Russell (H-R) diagram.
Fil: Hubrig, S.. Leibniz-Institut für Astrophysik Potsdam; Alemania
Fil: Ilyin, I.. Leibniz-Institut für Astrophysik Potsdam; Alemania
Fil: Briquet, M.. Katholikie Universiteit Leuven; Bélgica. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
Fil: Schöller, M.. European Southern Observatory; Alemania
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: Nuñez, Natalia Edith. 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: De Cat, P.. Koninklijke Sterrenwacht van België; Bélgica
Fil: Morel, T.. Université de Liège; Bélgica
description Aims. Only for very few β Cephei stars has the behaviour of the magnetic field been studied over the rotation cycle. During the past two years we have obtained multi-epoch polarimetric spectra of the β Cephei star V1449 Aql with SOFIN at the Nordic Optical Telescope to search for a rotation period and to constrain the geometry of the magnetic field. Methods. The mean longitudinal magnetic field is measured at 13 different epochs. The new measurements, together with the previous FORS 1 measurements, have been used for the frequency analysis and the characterization of the magnetic field. Results. V1449 Aql so far possesses the strongest longitudinal magnetic field of up to 700 G among the β Cephei stars. The resulting periodogram displays three dominant peaks with the highest peak at f = 0.0720 d-1 corresponding to a period P = 13 893. The magnetic field geometry can likely be described by a centred dipole with a polar magnetic field strength Bd around 3 kG and an inclination angle β of the magnetic axis to the rotation axis of 76 ± 4°. As of today, the strongest longitudinal magnetic fields are detected in the β Cephei stars V1449 Aql and ξ1 CMa with large radial velocity amplitudes. Their peak-to-peak amplitudes reach ∼90 km s-1 and ∼33 km s-1, respectively. Concluding, we briefly discuss the position of the currently known eight magnetic β Cephei and candidate β Cephei stars in the Hertzsprung-Russell (H-R) diagram.
publishDate 2011
dc.date.none.fl_str_mv 2011-06-17
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/11336/127452
Hubrig, S.; Ilyin, I.; Briquet, M.; Schöller, M.; Gonzalez, Jorge Federico; et al.; The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql; EDP Sciences; Astronomy and Astrophysics; 531; 17-6-2011; 20-25
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/127452
identifier_str_mv Hubrig, S.; Ilyin, I.; Briquet, M.; Schöller, M.; Gonzalez, Jorge Federico; et al.; The strong magnetic field of the large-amplitude β-Cephei pulsator V1449 Aql; EDP Sciences; Astronomy and Astrophysics; 531; 17-6-2011; 20-25
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201117261
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2011/07/aa17261-11/aa17261-11.html
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

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