First axion bounds from a pulsating helium-rich white dwarf star

Autores
Battich, Tiara; Córsico, Alejandro Hugo; Althaus, Leandro Gabriel; Miller Bertolami, Marcelo Miguel
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Peccei-Quinn mechanism proposed to solve the CP problem of Quantum Chromodynamics has as consequence the existence of axions, hypothetical weakly interacting particles whose mass is constrained to be on the sub-eV range. If these particles exist and interact with electrons, they would be emitted from the dense interior of white dwarfs, becoming an important energy sink for the star. Due to their well known physics, white dwarfs are good laboratories to study the properties of fundamental particles such as the axions. We study the general effect of axion emission on the evolution of helium-rich white dwarfs and on their pulsational properties. To this aim, we calculate evolutionary helium-rich white dwarf models with axion emission, and assess the pulsational properties of this models. Our results indicate that the rates of change of pulsation periods are significantly affected by the existence of axions. We are able for the first time to independently constrain the mass of the axion from the study of pulsating helium-rich white dwarfs. To do this, we use an estimation of the rate of change of period of the pulsating white dwarf PG 1351+489 corresponding to the dominant pulsation period. From an asteroseismological model of PG 1351+489 we obtain gae < 3.3 × 10−13 for the axion-electron coupling constant, or ma cos2 β . 11.5 meV for the axion mass. This constraint is relaxed to gae < 5.5 × 10−13 (ma cos2 β . 19.5 meV), when no detailed asteroseismological model is adopted for the comparison with observations.
Instituto de Astrofísica de La Plata
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
Axions
Stars
White dwarfs
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/93927

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network_name_str SEDICI (UNLP)
spelling First axion bounds from a pulsating helium-rich white dwarf starBattich, TiaraCórsico, Alejandro HugoAlthaus, Leandro GabrielMiller Bertolami, Marcelo MiguelCiencias AstronómicasAxionsStarsWhite dwarfsThe Peccei-Quinn mechanism proposed to solve the CP problem of Quantum Chromodynamics has as consequence the existence of axions, hypothetical weakly interacting particles whose mass is constrained to be on the sub-eV range. If these particles exist and interact with electrons, they would be emitted from the dense interior of white dwarfs, becoming an important energy sink for the star. Due to their well known physics, white dwarfs are good laboratories to study the properties of fundamental particles such as the axions. We study the general effect of axion emission on the evolution of helium-rich white dwarfs and on their pulsational properties. To this aim, we calculate evolutionary helium-rich white dwarf models with axion emission, and assess the pulsational properties of this models. Our results indicate that the rates of change of pulsation periods are significantly affected by the existence of axions. We are able for the first time to independently constrain the mass of the axion from the study of pulsating helium-rich white dwarfs. To do this, we use an estimation of the rate of change of period of the pulsating white dwarf PG 1351+489 corresponding to the dominant pulsation period. From an asteroseismological model of PG 1351+489 we obtain gae < 3.3 × 10−13 for the axion-electron coupling constant, or ma cos2 β . 11.5 meV for the axion mass. This constraint is relaxed to gae < 5.5 × 10−13 (ma cos2 β . 19.5 meV), when no detailed asteroseismological model is adopted for the comparison with observations.Instituto de Astrofísica de La PlataFacultad de Ciencias Astronómicas y Geofísicas2016-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/93927enginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1475-7516/2016/08/062info:eu-repo/semantics/altIdentifier/issn/1475-7516info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2016/08/062info:eu-repo/semantics/altIdentifier/hdl/11336/36422info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:19:26Zoai:sedici.unlp.edu.ar:10915/93927Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:19:27.076SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv First axion bounds from a pulsating helium-rich white dwarf star
title First axion bounds from a pulsating helium-rich white dwarf star
spellingShingle First axion bounds from a pulsating helium-rich white dwarf star
Battich, Tiara
Ciencias Astronómicas
Axions
Stars
White dwarfs
title_short First axion bounds from a pulsating helium-rich white dwarf star
title_full First axion bounds from a pulsating helium-rich white dwarf star
title_fullStr First axion bounds from a pulsating helium-rich white dwarf star
title_full_unstemmed First axion bounds from a pulsating helium-rich white dwarf star
title_sort First axion bounds from a pulsating helium-rich white dwarf star
dc.creator.none.fl_str_mv Battich, Tiara
Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
Miller Bertolami, Marcelo Miguel
author Battich, Tiara
author_facet Battich, Tiara
Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
Miller Bertolami, Marcelo Miguel
author_role author
author2 Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
Miller Bertolami, Marcelo Miguel
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Axions
Stars
White dwarfs
topic Ciencias Astronómicas
Axions
Stars
White dwarfs
dc.description.none.fl_txt_mv The Peccei-Quinn mechanism proposed to solve the CP problem of Quantum Chromodynamics has as consequence the existence of axions, hypothetical weakly interacting particles whose mass is constrained to be on the sub-eV range. If these particles exist and interact with electrons, they would be emitted from the dense interior of white dwarfs, becoming an important energy sink for the star. Due to their well known physics, white dwarfs are good laboratories to study the properties of fundamental particles such as the axions. We study the general effect of axion emission on the evolution of helium-rich white dwarfs and on their pulsational properties. To this aim, we calculate evolutionary helium-rich white dwarf models with axion emission, and assess the pulsational properties of this models. Our results indicate that the rates of change of pulsation periods are significantly affected by the existence of axions. We are able for the first time to independently constrain the mass of the axion from the study of pulsating helium-rich white dwarfs. To do this, we use an estimation of the rate of change of period of the pulsating white dwarf PG 1351+489 corresponding to the dominant pulsation period. From an asteroseismological model of PG 1351+489 we obtain gae < 3.3 × 10−13 for the axion-electron coupling constant, or ma cos2 β . 11.5 meV for the axion mass. This constraint is relaxed to gae < 5.5 × 10−13 (ma cos2 β . 19.5 meV), when no detailed asteroseismological model is adopted for the comparison with observations.
Instituto de Astrofísica de La Plata
Facultad de Ciencias Astronómicas y Geofísicas
description The Peccei-Quinn mechanism proposed to solve the CP problem of Quantum Chromodynamics has as consequence the existence of axions, hypothetical weakly interacting particles whose mass is constrained to be on the sub-eV range. If these particles exist and interact with electrons, they would be emitted from the dense interior of white dwarfs, becoming an important energy sink for the star. Due to their well known physics, white dwarfs are good laboratories to study the properties of fundamental particles such as the axions. We study the general effect of axion emission on the evolution of helium-rich white dwarfs and on their pulsational properties. To this aim, we calculate evolutionary helium-rich white dwarf models with axion emission, and assess the pulsational properties of this models. Our results indicate that the rates of change of pulsation periods are significantly affected by the existence of axions. We are able for the first time to independently constrain the mass of the axion from the study of pulsating helium-rich white dwarfs. To do this, we use an estimation of the rate of change of period of the pulsating white dwarf PG 1351+489 corresponding to the dominant pulsation period. From an asteroseismological model of PG 1351+489 we obtain gae < 3.3 × 10−13 for the axion-electron coupling constant, or ma cos2 β . 11.5 meV for the axion mass. This constraint is relaxed to gae < 5.5 × 10−13 (ma cos2 β . 19.5 meV), when no detailed asteroseismological model is adopted for the comparison with observations.
publishDate 2016
dc.date.none.fl_str_mv 2016-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/93927
url http://sedici.unlp.edu.ar/handle/10915/93927
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/issn/1475-7516
info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2016/08/062
info:eu-repo/semantics/altIdentifier/hdl/11336/36422
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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