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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/42642
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:34:08Zoai: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:34982025-09-29 09:34:08.892CONICET 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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1844613054997725184 |
score |
13.070432 |