Weak decay processes in pre-supernova core evolution within the gross theory

Autores
Ferreira, R. C.; Dimarco, A. J.; Samana, Arturo Rodolfo; Barbero, César Alberto
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The beta decay and electron capture rates are of fundamental importance in the evolution of massive stars in a pre-supernova core. The beta decay process gives its contribution by emitting electrons in the plasma of the stellar core, thereby increasing pressure, which in turn increases the temperature. From the other side, the electron capture removes free electrons from the plasma of the star core contributing to the reduction of pressure and temperature. In this work we calculate the beta decay and electron capture rates in stellar conditions for 63 nuclei of relevance in the pre-supernova stage, employing Gross Theory as the nuclear model. We use the abundances calculated with the Saha equations in the hypothesis of nuclear statistical equilibrium to evaluate the time derivative of the fraction of electrons. Our results are compared with other evaluations available in the literature. They have shown to be one order less or equal than the calculated within other models. Our results indicate that these differences may influence the evolution of the star in the later stages of pre-supernova. © 2014. The American Astronomical Society. All rights reserved..
Fil: Ferreira, R. C.. Universidade Estadual Do Sudoeste Da Bahía; Brasil
Fil: Dimarco, A. J.. Universidade Estadual de Santa Cruz, Bahía, Brasil; Brasil
Fil: Samana, Arturo Rodolfo. Universidade Estadual de Santa Cruz, Bahía, Brasil; Brasil
Fil: Barbero, César Alberto. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Materia
ATOMIC PROCESSES
NUCLEAR REACTIONS, NUCLEOSYNTHESIS, ABUNDANCES
SUPERNOVAE: GENERAL
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:11336/99628
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Weak decay processes in pre-supernova core evolution within the gross theoryFerreira, R. C.Dimarco, A. J.Samana, Arturo RodolfoBarbero, César AlbertoATOMIC PROCESSESNUCLEAR REACTIONS, NUCLEOSYNTHESIS, ABUNDANCESSUPERNOVAE: GENERALhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The beta decay and electron capture rates are of fundamental importance in the evolution of massive stars in a pre-supernova core. The beta decay process gives its contribution by emitting electrons in the plasma of the stellar core, thereby increasing pressure, which in turn increases the temperature. From the other side, the electron capture removes free electrons from the plasma of the star core contributing to the reduction of pressure and temperature. In this work we calculate the beta decay and electron capture rates in stellar conditions for 63 nuclei of relevance in the pre-supernova stage, employing Gross Theory as the nuclear model. We use the abundances calculated with the Saha equations in the hypothesis of nuclear statistical equilibrium to evaluate the time derivative of the fraction of electrons. Our results are compared with other evaluations available in the literature. They have shown to be one order less or equal than the calculated within other models. Our results indicate that these differences may influence the evolution of the star in the later stages of pre-supernova. © 2014. The American Astronomical Society. All rights reserved..Fil: Ferreira, R. C.. Universidade Estadual Do Sudoeste Da Bahía; BrasilFil: Dimarco, A. J.. Universidade Estadual de Santa Cruz, Bahía, Brasil; BrasilFil: Samana, Arturo Rodolfo. Universidade Estadual de Santa Cruz, Bahía, Brasil; BrasilFil: Barbero, César Alberto. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaIOP Publishing2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/99628Ferreira, R. C.; Dimarco, A. J.; Samana, Arturo Rodolfo; Barbero, César Alberto; Weak decay processes in pre-supernova core evolution within the gross theory; IOP Publishing; Astrophysical Journal; 784; 1 ; 2-2014; 1-140004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/784/1/24info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0004-637X/784/1/24info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:49:44Zoai:ri.conicet.gov.ar:11336/99628instacron: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 09:49:45.203CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Weak decay processes in pre-supernova core evolution within the gross theory
title Weak decay processes in pre-supernova core evolution within the gross theory
spellingShingle Weak decay processes in pre-supernova core evolution within the gross theory
Ferreira, R. C.
ATOMIC PROCESSES
NUCLEAR REACTIONS, NUCLEOSYNTHESIS, ABUNDANCES
SUPERNOVAE: GENERAL
title_short Weak decay processes in pre-supernova core evolution within the gross theory
title_full Weak decay processes in pre-supernova core evolution within the gross theory
title_fullStr Weak decay processes in pre-supernova core evolution within the gross theory
title_full_unstemmed Weak decay processes in pre-supernova core evolution within the gross theory
title_sort Weak decay processes in pre-supernova core evolution within the gross theory
dc.creator.none.fl_str_mv Ferreira, R. C.
Dimarco, A. J.
Samana, Arturo Rodolfo
Barbero, César Alberto
author Ferreira, R. C.
author_facet Ferreira, R. C.
Dimarco, A. J.
Samana, Arturo Rodolfo
Barbero, César Alberto
author_role author
author2 Dimarco, A. J.
Samana, Arturo Rodolfo
Barbero, César Alberto
author2_role author
author
author
dc.subject.none.fl_str_mv ATOMIC PROCESSES
NUCLEAR REACTIONS, NUCLEOSYNTHESIS, ABUNDANCES
SUPERNOVAE: GENERAL
topic ATOMIC PROCESSES
NUCLEAR REACTIONS, NUCLEOSYNTHESIS, ABUNDANCES
SUPERNOVAE: GENERAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The beta decay and electron capture rates are of fundamental importance in the evolution of massive stars in a pre-supernova core. The beta decay process gives its contribution by emitting electrons in the plasma of the stellar core, thereby increasing pressure, which in turn increases the temperature. From the other side, the electron capture removes free electrons from the plasma of the star core contributing to the reduction of pressure and temperature. In this work we calculate the beta decay and electron capture rates in stellar conditions for 63 nuclei of relevance in the pre-supernova stage, employing Gross Theory as the nuclear model. We use the abundances calculated with the Saha equations in the hypothesis of nuclear statistical equilibrium to evaluate the time derivative of the fraction of electrons. Our results are compared with other evaluations available in the literature. They have shown to be one order less or equal than the calculated within other models. Our results indicate that these differences may influence the evolution of the star in the later stages of pre-supernova. © 2014. The American Astronomical Society. All rights reserved..
Fil: Ferreira, R. C.. Universidade Estadual Do Sudoeste Da Bahía; Brasil
Fil: Dimarco, A. J.. Universidade Estadual de Santa Cruz, Bahía, Brasil; Brasil
Fil: Samana, Arturo Rodolfo. Universidade Estadual de Santa Cruz, Bahía, Brasil; Brasil
Fil: Barbero, César Alberto. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
description The beta decay and electron capture rates are of fundamental importance in the evolution of massive stars in a pre-supernova core. The beta decay process gives its contribution by emitting electrons in the plasma of the stellar core, thereby increasing pressure, which in turn increases the temperature. From the other side, the electron capture removes free electrons from the plasma of the star core contributing to the reduction of pressure and temperature. In this work we calculate the beta decay and electron capture rates in stellar conditions for 63 nuclei of relevance in the pre-supernova stage, employing Gross Theory as the nuclear model. We use the abundances calculated with the Saha equations in the hypothesis of nuclear statistical equilibrium to evaluate the time derivative of the fraction of electrons. Our results are compared with other evaluations available in the literature. They have shown to be one order less or equal than the calculated within other models. Our results indicate that these differences may influence the evolution of the star in the later stages of pre-supernova. © 2014. The American Astronomical Society. All rights reserved..
publishDate 2014
dc.date.none.fl_str_mv 2014-02
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/11336/99628
Ferreira, R. C.; Dimarco, A. J.; Samana, Arturo Rodolfo; Barbero, César Alberto; Weak decay processes in pre-supernova core evolution within the gross theory; IOP Publishing; Astrophysical Journal; 784; 1 ; 2-2014; 1-14
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/99628
identifier_str_mv Ferreira, R. C.; Dimarco, A. J.; Samana, Arturo Rodolfo; Barbero, César Alberto; Weak decay processes in pre-supernova core evolution within the gross theory; IOP Publishing; Astrophysical Journal; 784; 1 ; 2-2014; 1-14
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/784/1/24
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0004-637X/784/1/24
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
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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