Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200

Autores
Corsico, Alejandro Hugo; Althaus, Leandro Gabriel; Kawaler, S. D.; Miller Bertolami, Marcelo Miguel; García Berro, E.; Kepler, S. O.
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We put asteroseismological constraints on the internal rotation profile of the GW Vir (PG1159-type) star PG 0122+200. To this end we employ a state-of-the-art asteroseismological model for this star and assess the expected frequency splittings induced by rotation adopting a forward approach in which we compare the theoretical frequency separations with the observed ones assuming different types of plausible internal rotation profiles. We also employ two asteroseismological inversion methods for the inversion of the rotation profile of PG 0122+200. We find evidence for differential rotation in this star. We demonstrate that the frequency splittings of the rotational multiplets exhibited by PG 0122+200 are compatible with a rotation profile in which the central regions are spinning about 2.4 times faster than the stellar surface.
Fil: Corsico, Alejandro Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Kawaler, S. D.. Iowa State University. Department of Physics and Astronomy; Estados Unidos
Fil: Miller Bertolami, Marcelo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: García Berro, E. . Universidad Politecnica de Catalunya; España. Institute for Space Studies of Catalonia; España
Fil: Kepler, S. O. . Universidade Federal do Rio Grande do Sul; Brasil
Materia
Evolution of stars
PG 0122+200 (estrella)
Oscillations of stars
Interior stars
Rotation of stars
White dwarfs
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:11336/10064
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/10064
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200Corsico, Alejandro HugoAlthaus, Leandro GabrielKawaler, S. D.Miller Bertolami, Marcelo MiguelGarcía Berro, E. Kepler, S. O. Evolution of starsPG 0122+200 (estrella)Oscillations of starsInterior starsRotation of starsWhite dwarfshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We put asteroseismological constraints on the internal rotation profile of the GW Vir (PG1159-type) star PG 0122+200. To this end we employ a state-of-the-art asteroseismological model for this star and assess the expected frequency splittings induced by rotation adopting a forward approach in which we compare the theoretical frequency separations with the observed ones assuming different types of plausible internal rotation profiles. We also employ two asteroseismological inversion methods for the inversion of the rotation profile of PG 0122+200. We find evidence for differential rotation in this star. We demonstrate that the frequency splittings of the rotational multiplets exhibited by PG 0122+200 are compatible with a rotation profile in which the central regions are spinning about 2.4 times faster than the stellar surface.Fil: Corsico, Alejandro Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Kawaler, S. D.. Iowa State University. Department of Physics and Astronomy; Estados UnidosFil: Miller Bertolami, Marcelo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: García Berro, E. . Universidad Politecnica de Catalunya; España. Institute for Space Studies of Catalonia; EspañaFil: Kepler, S. O. . Universidade Federal do Rio Grande do Sul; BrasilRoyal Astronomical Society2011-12info: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/11336/10064Corsico, Alejandro Hugo; Althaus, Leandro Gabriel; Kawaler, S. D.; Miller Bertolami, Marcelo Miguel; García Berro, E. ; et al.; Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200; Royal Astronomical Society; Monthly Notices Of The Royal Astronomical Society; 418; 4; 12-2011; 2519-25260035-8711enginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2011.19642.xinfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2011.19642.x/abstractinfo:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/418/4/2519info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:16:09Zoai:ri.conicet.gov.ar:11336/10064instacron: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:34982025-10-22 11:16:09.487CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200
title Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200
spellingShingle Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200
Corsico, Alejandro Hugo
Evolution of stars
PG 0122+200 (estrella)
Oscillations of stars
Interior stars
Rotation of stars
White dwarfs
title_short Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200
title_full Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200
title_fullStr Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200
title_full_unstemmed Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200
title_sort Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200
dc.creator.none.fl_str_mv Corsico, Alejandro Hugo
Althaus, Leandro Gabriel
Kawaler, S. D.
Miller Bertolami, Marcelo Miguel
García Berro, E.
Kepler, S. O.
author Corsico, Alejandro Hugo
author_facet Corsico, Alejandro Hugo
Althaus, Leandro Gabriel
Kawaler, S. D.
Miller Bertolami, Marcelo Miguel
García Berro, E.
Kepler, S. O.
author_role author
author2 Althaus, Leandro Gabriel
Kawaler, S. D.
Miller Bertolami, Marcelo Miguel
García Berro, E.
Kepler, S. O.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Evolution of stars
PG 0122+200 (estrella)
Oscillations of stars
Interior stars
Rotation of stars
White dwarfs
topic Evolution of stars
PG 0122+200 (estrella)
Oscillations of stars
Interior stars
Rotation of stars
White dwarfs
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We put asteroseismological constraints on the internal rotation profile of the GW Vir (PG1159-type) star PG 0122+200. To this end we employ a state-of-the-art asteroseismological model for this star and assess the expected frequency splittings induced by rotation adopting a forward approach in which we compare the theoretical frequency separations with the observed ones assuming different types of plausible internal rotation profiles. We also employ two asteroseismological inversion methods for the inversion of the rotation profile of PG 0122+200. We find evidence for differential rotation in this star. We demonstrate that the frequency splittings of the rotational multiplets exhibited by PG 0122+200 are compatible with a rotation profile in which the central regions are spinning about 2.4 times faster than the stellar surface.
Fil: Corsico, Alejandro Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Kawaler, S. D.. Iowa State University. Department of Physics and Astronomy; Estados Unidos
Fil: Miller Bertolami, Marcelo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: García Berro, E. . Universidad Politecnica de Catalunya; España. Institute for Space Studies of Catalonia; España
Fil: Kepler, S. O. . Universidade Federal do Rio Grande do Sul; Brasil
description We put asteroseismological constraints on the internal rotation profile of the GW Vir (PG1159-type) star PG 0122+200. To this end we employ a state-of-the-art asteroseismological model for this star and assess the expected frequency splittings induced by rotation adopting a forward approach in which we compare the theoretical frequency separations with the observed ones assuming different types of plausible internal rotation profiles. We also employ two asteroseismological inversion methods for the inversion of the rotation profile of PG 0122+200. We find evidence for differential rotation in this star. We demonstrate that the frequency splittings of the rotational multiplets exhibited by PG 0122+200 are compatible with a rotation profile in which the central regions are spinning about 2.4 times faster than the stellar surface.
publishDate 2011
dc.date.none.fl_str_mv 2011-12
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/11336/10064
Corsico, Alejandro Hugo; Althaus, Leandro Gabriel; Kawaler, S. D.; Miller Bertolami, Marcelo Miguel; García Berro, E. ; et al.; Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200; Royal Astronomical Society; Monthly Notices Of The Royal Astronomical Society; 418; 4; 12-2011; 2519-2526
0035-8711
url http://hdl.handle.net/11336/10064
identifier_str_mv Corsico, Alejandro Hugo; Althaus, Leandro Gabriel; Kawaler, S. D.; Miller Bertolami, Marcelo Miguel; García Berro, E. ; et al.; Probing the internal rotation of pre-white dwarf stars with asteroseismology: the case of PG 0122+200; Royal Astronomical Society; Monthly Notices Of The Royal Astronomical Society; 418; 4; 12-2011; 2519-2526
0035-8711
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2011.19642.x
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2011.19642.x/abstract
info:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/418/4/2519
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 Royal Astronomical Society
publisher.none.fl_str_mv Royal Astronomical Society
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 12.982451

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