An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs

Autores
Corsico, Alejandro Hugo; Althaus, Leandro Gabriel; García Berro, E.; Romero, A. D.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A secular variation of the gravitational constant modifies the structure and evolutionary time scales of white dwarfs. Using an state-of-the-art stellar evolutionary code and an up-to-date pulsational code we compute the effects of a secularly varying G on the pulsational properties of variable white dwarfs. Comparing the the theoretical results obtained taking into account the effects of a running G with the observed periods and measured rates of change of the periods of two well studied pulsating white dwarfs, G117-B15A and R548, we place constraints on the rate of variation of Newton's constant. We derive an upper bound Ġ/G ~ −1.8 × 10−10 yr−1 using the variable white dwarf G117-B15A, and Ġ/G ~ −1.3 × 10−10 yr−1 using R548. Although these upper limits are currently less restrictive than those obtained using other techniques, they can be improved in a future measuring the rate of change of the period of massive white dwarfs. Export citation and abstract
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 La Plata. Instituto de Astrofísica de La Plata; Argentina
Fil: Althaus, Leandro Gabriel. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
Fil: García Berro, E.. Universidad Politecnica de Catalunya; España. Institute for Space Studies of Catalonia; España
Fil: Romero, A. D.. Universidade Federal do Rio Grande do Sul; Brasil
Materia
Gravity
White dwarfs
Brown 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:11336/10620
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/10620
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfsCorsico, Alejandro HugoAlthaus, Leandro GabrielGarcía Berro, E.Romero, A. D.GravityWhite dwarfsBrown dwarfshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A secular variation of the gravitational constant modifies the structure and evolutionary time scales of white dwarfs. Using an state-of-the-art stellar evolutionary code and an up-to-date pulsational code we compute the effects of a secularly varying G on the pulsational properties of variable white dwarfs. Comparing the the theoretical results obtained taking into account the effects of a running G with the observed periods and measured rates of change of the periods of two well studied pulsating white dwarfs, G117-B15A and R548, we place constraints on the rate of variation of Newton's constant. We derive an upper bound Ġ/G ~ −1.8 × 10−10 yr−1 using the variable white dwarf G117-B15A, and Ġ/G ~ −1.3 × 10−10 yr−1 using R548. Although these upper limits are currently less restrictive than those obtained using other techniques, they can be improved in a future measuring the rate of change of the period of massive white dwarfs. Export citation and abstractFil: 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 La Plata. Instituto de Astrofísica de La Plata; ArgentinaFil: Althaus, Leandro Gabriel. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; ArgentinaFil: García Berro, E.. Universidad Politecnica de Catalunya; España. Institute for Space Studies of Catalonia; EspañaFil: Romero, A. D.. Universidade Federal do Rio Grande do Sul; BrasilIop Publishing2013-06info: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/11336/10620Corsico, Alejandro Hugo; Althaus, Leandro Gabriel; García Berro, E.; Romero, A. D.; An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs; Iop Publishing; Journal Of Cosmology And Astroparticle Physics; 6; 6-2013; 32-441475-7516enginfo:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2013/06/032info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1475-7516/2013/06/032info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1306.1864info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:08Zoai:ri.conicet.gov.ar:11336/10620instacron: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 09:38:08.962CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs
title An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs
spellingShingle An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs
Corsico, Alejandro Hugo
Gravity
White dwarfs
Brown dwarfs
title_short An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs
title_full An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs
title_fullStr An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs
title_full_unstemmed An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs
title_sort An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs
dc.creator.none.fl_str_mv Corsico, Alejandro Hugo
Althaus, Leandro Gabriel
García Berro, E.
Romero, A. D.
author Corsico, Alejandro Hugo
author_facet Corsico, Alejandro Hugo
Althaus, Leandro Gabriel
García Berro, E.
Romero, A. D.
author_role author
author2 Althaus, Leandro Gabriel
García Berro, E.
Romero, A. D.
author2_role author
author
author
dc.subject.none.fl_str_mv Gravity
White dwarfs
Brown dwarfs
topic Gravity
White dwarfs
Brown dwarfs
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A secular variation of the gravitational constant modifies the structure and evolutionary time scales of white dwarfs. Using an state-of-the-art stellar evolutionary code and an up-to-date pulsational code we compute the effects of a secularly varying G on the pulsational properties of variable white dwarfs. Comparing the the theoretical results obtained taking into account the effects of a running G with the observed periods and measured rates of change of the periods of two well studied pulsating white dwarfs, G117-B15A and R548, we place constraints on the rate of variation of Newton's constant. We derive an upper bound Ġ/G ~ −1.8 × 10−10 yr−1 using the variable white dwarf G117-B15A, and Ġ/G ~ −1.3 × 10−10 yr−1 using R548. Although these upper limits are currently less restrictive than those obtained using other techniques, they can be improved in a future measuring the rate of change of the period of massive white dwarfs. Export citation and abstract
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 La Plata. Instituto de Astrofísica de La Plata; Argentina
Fil: Althaus, Leandro Gabriel. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
Fil: García Berro, E.. Universidad Politecnica de Catalunya; España. Institute for Space Studies of Catalonia; España
Fil: Romero, A. D.. Universidade Federal do Rio Grande do Sul; Brasil
description A secular variation of the gravitational constant modifies the structure and evolutionary time scales of white dwarfs. Using an state-of-the-art stellar evolutionary code and an up-to-date pulsational code we compute the effects of a secularly varying G on the pulsational properties of variable white dwarfs. Comparing the the theoretical results obtained taking into account the effects of a running G with the observed periods and measured rates of change of the periods of two well studied pulsating white dwarfs, G117-B15A and R548, we place constraints on the rate of variation of Newton's constant. We derive an upper bound Ġ/G ~ −1.8 × 10−10 yr−1 using the variable white dwarf G117-B15A, and Ġ/G ~ −1.3 × 10−10 yr−1 using R548. Although these upper limits are currently less restrictive than those obtained using other techniques, they can be improved in a future measuring the rate of change of the period of massive white dwarfs. Export citation and abstract
publishDate 2013
dc.date.none.fl_str_mv 2013-06
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/11336/10620
Corsico, Alejandro Hugo; Althaus, Leandro Gabriel; García Berro, E.; Romero, A. D.; An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs; Iop Publishing; Journal Of Cosmology And Astroparticle Physics; 6; 6-2013; 32-44
1475-7516
url http://hdl.handle.net/11336/10620
identifier_str_mv Corsico, Alejandro Hugo; Althaus, Leandro Gabriel; García Berro, E.; Romero, A. D.; An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs; Iop Publishing; Journal Of Cosmology And Astroparticle Physics; 6; 6-2013; 32-44
1475-7516
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2013/06/032
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1475-7516/2013/06/032
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1306.1864
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 13.070432

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