Double degenerate mergers as progenitors of high-field magnetic white dwarfs

Autores
García Berro, Enrique; Loren Aguilar, Pablo; Aznar Siguán, Gabriela; Torres, Santiago; Camacho, Judit; Althaus, Leandro Gabriel; Corsico, Alejandro Hugo; Külebi, Baybars; Isern, Jordi
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
High-field magnetic white dwarfs have been long suspected to be the result of stellar mergers. However, the nature of the coalescing stars and the precise mechanism that produces the magnetic field are still unknown. Here, we show that the hot, convective, differentially rotating corona present in the outer layers of the remnant of the merger of two degenerate cores can produce magnetic fields of the required strength that do not decay for long timescales. Using a state-of-the-art Monte Carlo simulator, we also show that the expected number of high-field magnetic white dwarfs produced in this way is consistent with that found in the solar neighborhood.
Fil: García Berro, Enrique. Universidad Politécnica de Catalunya; España
Fil: Loren Aguilar, Pablo. Universidad Politécnica de Catalunya; España
Fil: Aznar Siguán, Gabriela. Universidad Politécnica de Catalunya; España
Fil: Torres, Santiago. Universidad Politécnica de Catalunya; España
Fil: Camacho, Judit. Universidad Politécnica de Catalunya; España
Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Corsico, Alejandro Hugo. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Külebi, Baybars. Institut de Ciencies de l’Espai; España
Fil: Isern, Jordi. Institut de Ciencies de l’Espai; España
Materia
Binary stars
Evolution of stars
Interior stars
Magnetic fields
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:11336/42642
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Double degenerate mergers as progenitors of high-field magnetic white dwarfsGarcía Berro, EnriqueLoren Aguilar, PabloAznar Siguán, GabrielaTorres, SantiagoCamacho, JuditAlthaus, Leandro GabrielCorsico, Alejandro HugoKülebi, BaybarsIsern, JordiBinary starsEvolution of starsInterior starsMagnetic fieldshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1High-field magnetic white dwarfs have been long suspected to be the result of stellar mergers. However, the nature of the coalescing stars and the precise mechanism that produces the magnetic field are still unknown. Here, we show that the hot, convective, differentially rotating corona present in the outer layers of the remnant of the merger of two degenerate cores can produce magnetic fields of the required strength that do not decay for long timescales. Using a state-of-the-art Monte Carlo simulator, we also show that the expected number of high-field magnetic white dwarfs produced in this way is consistent with that found in the solar neighborhood.Fil: García Berro, Enrique. Universidad Politécnica de Catalunya; EspañaFil: Loren Aguilar, Pablo. Universidad Politécnica de Catalunya; EspañaFil: Aznar Siguán, Gabriela. Universidad Politécnica de Catalunya; EspañaFil: Torres, Santiago. Universidad Politécnica de Catalunya; EspañaFil: Camacho, Judit. Universidad Politécnica de Catalunya; EspañaFil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Corsico, Alejandro Hugo. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Külebi, Baybars. Institut de Ciencies de l’Espai; EspañaFil: Isern, Jordi. Institut de Ciencies de l’Espai; EspañaIOP Publishing2012-04info: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/11336/42642García Berro, Enrique; Loren Aguilar, Pablo; Aznar Siguán, Gabriela; Torres, Santiago; Camacho, Judit; et al.; Double degenerate mergers as progenitors of high-field magnetic white dwarfs; IOP Publishing; Astrophysical Journal; 749; 1; 4-2012; 749-7540004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/749/1/25info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/749/1/25/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:02:11Zoai:ri.conicet.gov.ar:11336/42642instacron: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 11:02:12.136CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Double degenerate mergers as progenitors of high-field magnetic white dwarfs
title Double degenerate mergers as progenitors of high-field magnetic white dwarfs
spellingShingle Double degenerate mergers as progenitors of high-field magnetic white dwarfs
García Berro, Enrique
Binary stars
Evolution of stars
Interior stars
Magnetic fields
title_short Double degenerate mergers as progenitors of high-field magnetic white dwarfs
title_full Double degenerate mergers as progenitors of high-field magnetic white dwarfs
title_fullStr Double degenerate mergers as progenitors of high-field magnetic white dwarfs
title_full_unstemmed Double degenerate mergers as progenitors of high-field magnetic white dwarfs
title_sort Double degenerate mergers as progenitors of high-field magnetic white dwarfs
dc.creator.none.fl_str_mv García Berro, Enrique
Loren Aguilar, Pablo
Aznar Siguán, Gabriela
Torres, Santiago
Camacho, Judit
Althaus, Leandro Gabriel
Corsico, Alejandro Hugo
Külebi, Baybars
Isern, Jordi
author García Berro, Enrique
author_facet García Berro, Enrique
Loren Aguilar, Pablo
Aznar Siguán, Gabriela
Torres, Santiago
Camacho, Judit
Althaus, Leandro Gabriel
Corsico, Alejandro Hugo
Külebi, Baybars
Isern, Jordi
author_role author
author2 Loren Aguilar, Pablo
Aznar Siguán, Gabriela
Torres, Santiago
Camacho, Judit
Althaus, Leandro Gabriel
Corsico, Alejandro Hugo
Külebi, Baybars
Isern, Jordi
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Binary stars
Evolution of stars
Interior stars
Magnetic fields
topic Binary stars
Evolution of stars
Interior stars
Magnetic fields
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv High-field magnetic white dwarfs have been long suspected to be the result of stellar mergers. However, the nature of the coalescing stars and the precise mechanism that produces the magnetic field are still unknown. Here, we show that the hot, convective, differentially rotating corona present in the outer layers of the remnant of the merger of two degenerate cores can produce magnetic fields of the required strength that do not decay for long timescales. Using a state-of-the-art Monte Carlo simulator, we also show that the expected number of high-field magnetic white dwarfs produced in this way is consistent with that found in the solar neighborhood.
Fil: García Berro, Enrique. Universidad Politécnica de Catalunya; España
Fil: Loren Aguilar, Pablo. Universidad Politécnica de Catalunya; España
Fil: Aznar Siguán, Gabriela. Universidad Politécnica de Catalunya; España
Fil: Torres, Santiago. Universidad Politécnica de Catalunya; España
Fil: Camacho, Judit. Universidad Politécnica de Catalunya; España
Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Corsico, Alejandro Hugo. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Külebi, Baybars. Institut de Ciencies de l’Espai; España
Fil: Isern, Jordi. Institut de Ciencies de l’Espai; España
description High-field magnetic white dwarfs have been long suspected to be the result of stellar mergers. However, the nature of the coalescing stars and the precise mechanism that produces the magnetic field are still unknown. Here, we show that the hot, convective, differentially rotating corona present in the outer layers of the remnant of the merger of two degenerate cores can produce magnetic fields of the required strength that do not decay for long timescales. Using a state-of-the-art Monte Carlo simulator, we also show that the expected number of high-field magnetic white dwarfs produced in this way is consistent with that found in the solar neighborhood.
publishDate 2012
dc.date.none.fl_str_mv 2012-04
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/11336/42642
García Berro, Enrique; Loren Aguilar, Pablo; Aznar Siguán, Gabriela; Torres, Santiago; Camacho, Judit; et al.; Double degenerate mergers as progenitors of high-field magnetic white dwarfs; IOP Publishing; Astrophysical Journal; 749; 1; 4-2012; 749-754
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/42642
identifier_str_mv García Berro, Enrique; Loren Aguilar, Pablo; Aznar Siguán, Gabriela; Torres, Santiago; Camacho, Judit; et al.; Double degenerate mergers as progenitors of high-field magnetic white dwarfs; IOP Publishing; Astrophysical Journal; 749; 1; 4-2012; 749-754
0004-637X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/749/1/25
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/749/1/25/meta
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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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