The structure and stability of massive hot white dwarfs

Descripción del Articulo

El texto completo de este trabajo no está disponible en el Repositorio Académico UPN por restricciones de la casa editorial donde ha sido publicado.
Detalles Bibliográficos
Autores: Nunes, Silvia P., Arbañil, José D. V., Malheiro, Manuel
Formato: artículo
Fecha de Publicación:2021
Institución:Universidad Privada del Norte
Repositorio:UPN-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.upn.edu.pe:11537/28468
Enlace del recurso:https://hdl.handle.net/11537/28468
https://doi.org/10.3847/1538-4357/ac1e8a
Nivel de acceso:acceso cerrado
Materia:Estrellas
Estabilidad
Calor
https://purl.org/pe-repo/ocde/ford#2.07.00
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network_name_str UPN-Institucional
repository_id_str 1873
dc.title.es_PE.fl_str_mv The structure and stability of massive hot white dwarfs
title The structure and stability of massive hot white dwarfs
spellingShingle The structure and stability of massive hot white dwarfs
Nunes, Silvia P.
Estrellas
Estabilidad
Calor
https://purl.org/pe-repo/ocde/ford#2.07.00
title_short The structure and stability of massive hot white dwarfs
title_full The structure and stability of massive hot white dwarfs
title_fullStr The structure and stability of massive hot white dwarfs
title_full_unstemmed The structure and stability of massive hot white dwarfs
title_sort The structure and stability of massive hot white dwarfs
author Nunes, Silvia P.
author_facet Nunes, Silvia P.
Arbañil, José D. V.
Malheiro, Manuel
author_role author
author2 Arbañil, José D. V.
Malheiro, Manuel
author2_role author
author
dc.contributor.author.fl_str_mv Nunes, Silvia P.
Arbañil, José D. V.
Malheiro, Manuel
dc.subject.es_PE.fl_str_mv Estrellas
Estabilidad
Calor
topic Estrellas
Estabilidad
Calor
https://purl.org/pe-repo/ocde/ford#2.07.00
dc.subject.ocde.es_PE.fl_str_mv https://purl.org/pe-repo/ocde/ford#2.07.00
description El texto completo de este trabajo no está disponible en el Repositorio Académico UPN por restricciones de la casa editorial donde ha sido publicado.
publishDate 2021
dc.date.accessioned.none.fl_str_mv 2021-11-18T06:42:51Z
dc.date.available.none.fl_str_mv 2021-11-18T06:42:51Z
dc.date.issued.fl_str_mv 2021-09-09
dc.type.es_PE.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.citation.es_PE.fl_str_mv Nunez, A. P., Arbañil, J. D., & Malheiro, M. (2021). The structure and stability of massive hot white dwarfs. The Astrophysical Journal, 921(138). https://doi.org/10.3847/1538-4357/ac1e8a
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/11537/28468
dc.identifier.journal.es_PE.fl_str_mv The Astrophysical Journal
dc.identifier.doi.none.fl_str_mv https://doi.org/10.3847/1538-4357/ac1e8a
identifier_str_mv Nunez, A. P., Arbañil, J. D., & Malheiro, M. (2021). The structure and stability of massive hot white dwarfs. The Astrophysical Journal, 921(138). https://doi.org/10.3847/1538-4357/ac1e8a
The Astrophysical Journal
url https://hdl.handle.net/11537/28468
https://doi.org/10.3847/1538-4357/ac1e8a
dc.language.iso.es_PE.fl_str_mv eng
language eng
dc.rights.es_PE.fl_str_mv info:eu-repo/semantics/closedAccess
eu_rights_str_mv closedAccess
dc.format.es_PE.fl_str_mv application/pdf
dc.publisher.es_PE.fl_str_mv IOP Publishing
dc.publisher.country.es_PE.fl_str_mv GB
dc.source.es_PE.fl_str_mv Universidad Privada del Norte
Repositorio Institucional - UPN
dc.source.none.fl_str_mv reponame:UPN-Institucional
instname:Universidad Privada del Norte
instacron:UPN
instname_str Universidad Privada del Norte
instacron_str UPN
institution UPN
reponame_str UPN-Institucional
collection UPN-Institucional
bitstream.url.fl_str_mv https://repositorio.upn.edu.pe/bitstream/11537/28468/1/license.txt
bitstream.checksum.fl_str_mv 8a4605be74aa9ea9d79846c1fba20a33
bitstream.checksumAlgorithm.fl_str_mv MD5
repository.name.fl_str_mv Repositorio Institucional UPN
repository.mail.fl_str_mv jordan.rivero@upn.edu.pe
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spelling Nunes, Silvia P.Arbañil, José D. V.Malheiro, Manuel2021-11-18T06:42:51Z2021-11-18T06:42:51Z2021-09-09Nunez, A. P., Arbañil, J. D., & Malheiro, M. (2021). The structure and stability of massive hot white dwarfs. The Astrophysical Journal, 921(138). https://doi.org/10.3847/1538-4357/ac1e8ahttps://hdl.handle.net/11537/28468The Astrophysical Journalhttps://doi.org/10.3847/1538-4357/ac1e8aEl texto completo de este trabajo no está disponible en el Repositorio Académico UPN por restricciones de la casa editorial donde ha sido publicado.ABSTRACT We investigate the structure and stability against radial oscillations, pycnonuclear reactions, and inverse β-decay of hot white dwarfs. We consider the fluid matter to be made up of nucleons and electrons confined in a Wigner–Seitz cell surrounded by free photons. It is considered that the temperature depends on the mass density considering the presence of an isothermal core. We find that the temperature produces remarkable effects on the equilibrium and radial stability of white dwarfs. The stable equilibrium configuration results are compared with those for white dwarfs estimated from the Extreme Ultraviolet Explorer survey and the Sloan Digital Sky Survey. We derive masses, radii, and central temperatures for the most massive white dwarfs according to the surface gravity and effective temperature reported by the surveys. We note that these massive stars are in the mass region where general relativity effects are important. These stars are near the threshold of instabilities due to radial oscillations, pycnonuclear reactions, and inverse β-decay. Regarding the radial stability of these stars as a function of the temperature, we find that it decreases with the increment of central temperature. We also find that the maximum-mass point and the zero eigenfrequencies of the fundamental mode are determined at the same central energy density. Regarding low-temperature stars, pycnonuclear reactions occur in similar central energy densities, and the central energy density threshold for inverse β-decay is not modified. For Tc ≥ 1.0 × 108 [K], the onset of radial instability is attained before pycnonuclear reaction and inverse β-decay.Revisión por paresSan Juan de Luriganchoapplication/pdfengIOP PublishingGBinfo:eu-repo/semantics/closedAccessUniversidad Privada del NorteRepositorio Institucional - UPNreponame:UPN-Institucionalinstname:Universidad Privada del Norteinstacron:UPNEstrellasEstabilidadCalorhttps://purl.org/pe-repo/ocde/ford#2.07.00The structure and stability of massive hot white dwarfsinfo:eu-repo/semantics/articleLICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.upn.edu.pe/bitstream/11537/28468/1/license.txt8a4605be74aa9ea9d79846c1fba20a33MD5111537/28468oai:repositorio.upn.edu.pe:11537/284682021-11-18 01:42:56.505Repositorio Institucional UPNjordan.rivero@upn.edu.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The structure and stability of massive hot white dwarfs
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