Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime

Autores
Araya, I.; Christen, A.; Cure, M.; Cidale, Lydia Sonia; Venero, Roberto Oscar José; Arcos, C.; Gormaz Matamala, A.; Haucke, Maximiliano; Escarate, P.; Clavería, H.
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Accurate mass-loss rates and terminal velocities from massive stars winds are essential to obtain synthetic spectra from radiative transfer calculations and to determine the evolutionary path of massive stars. From a theoretical point of view, analytical expressions for the wind parameters and velocity profile would have many advantages over numerical calculations that solve the complex non-linear set of hydrodynamic equations. In a previous work, we obtained an analytical description for the fast wind regime. Now, we propose an approximate expression for the line-force in terms of new parameters and obtain a velocity profile closed-form solution (in terms of the Lambert W function) for the δ-slow regime. Using this analytical velocity profile, we were able to obtain the mass-loss rates based on the m-CAK theory. Moreover, we established a relation between this new set of line-force parameters with the known stellar and m-CAK line-force parameters. To this purpose, we calculated a grid of numerical hydrodynamical models and performed a multivariate multiple regression. The numerical and our descriptions lead to good agreement between their values.
Fil: Araya, I.. Universidad Mayor; Chile
Fil: Christen, A.. Universidad de Valparaíso; Chile
Fil: Cure, M.. Universidad de Valparaíso; Chile
Fil: Cidale, Lydia Sonia. 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: Venero, Roberto Oscar José. 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: Arcos, C.. Universidad de Valparaíso; Chile
Fil: Gormaz Matamala, A.. Universidad de Valparaíso; Chile. Universidad Adolfo Ibañez; Chile
Fil: Haucke, Maximiliano. 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: Escarate, P.. Universidad Austral de Chile; Chile
Fil: Clavería, H.. Pontificia Universidad Católica de Valparaíso; Chile
Materia
HYDRODYNAMICS
METHODS: ANALYTICAL
STARS: EARLY-TYPE
STARS: MASS-LOSS
STARS: WINDS, OUTFLOWS
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:11336/145376
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/145376
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regimeAraya, I.Christen, A.Cure, M.Cidale, Lydia SoniaVenero, Roberto Oscar JoséArcos, C.Gormaz Matamala, A.Haucke, MaximilianoEscarate, P.Clavería, H.HYDRODYNAMICSMETHODS: ANALYTICALSTARS: EARLY-TYPESTARS: MASS-LOSSSTARS: WINDS, OUTFLOWShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Accurate mass-loss rates and terminal velocities from massive stars winds are essential to obtain synthetic spectra from radiative transfer calculations and to determine the evolutionary path of massive stars. From a theoretical point of view, analytical expressions for the wind parameters and velocity profile would have many advantages over numerical calculations that solve the complex non-linear set of hydrodynamic equations. In a previous work, we obtained an analytical description for the fast wind regime. Now, we propose an approximate expression for the line-force in terms of new parameters and obtain a velocity profile closed-form solution (in terms of the Lambert W function) for the δ-slow regime. Using this analytical velocity profile, we were able to obtain the mass-loss rates based on the m-CAK theory. Moreover, we established a relation between this new set of line-force parameters with the known stellar and m-CAK line-force parameters. To this purpose, we calculated a grid of numerical hydrodynamical models and performed a multivariate multiple regression. The numerical and our descriptions lead to good agreement between their values.Fil: Araya, I.. Universidad Mayor; ChileFil: Christen, A.. Universidad de Valparaíso; ChileFil: Cure, M.. Universidad de Valparaíso; ChileFil: Cidale, Lydia Sonia. 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: Venero, Roberto Oscar José. 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: Arcos, C.. Universidad de Valparaíso; ChileFil: Gormaz Matamala, A.. Universidad de Valparaíso; Chile. Universidad Adolfo Ibañez; ChileFil: Haucke, Maximiliano. 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: Escarate, P.. Universidad Austral de Chile; ChileFil: Clavería, H.. Pontificia Universidad Católica de Valparaíso; ChileOxford University Press2021-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/145376Araya, I.; Christen, A.; Cure, M.; Cidale, Lydia Sonia; Venero, Roberto Oscar José; et al.; Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 504; 2; 6-2021; 2550-25560035-87111365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab995info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/504/2/2550/6219855?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:12:45Zoai:ri.conicet.gov.ar:11336/145376instacron: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 10:12:45.354CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime
title Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime
spellingShingle Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime
Araya, I.
HYDRODYNAMICS
METHODS: ANALYTICAL
STARS: EARLY-TYPE
STARS: MASS-LOSS
STARS: WINDS, OUTFLOWS
title_short Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime
title_full Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime
title_fullStr Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime
title_full_unstemmed Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime
title_sort Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime
dc.creator.none.fl_str_mv Araya, I.
Christen, A.
Cure, M.
Cidale, Lydia Sonia
Venero, Roberto Oscar José
Arcos, C.
Gormaz Matamala, A.
Haucke, Maximiliano
Escarate, P.
Clavería, H.
author Araya, I.
author_facet Araya, I.
Christen, A.
Cure, M.
Cidale, Lydia Sonia
Venero, Roberto Oscar José
Arcos, C.
Gormaz Matamala, A.
Haucke, Maximiliano
Escarate, P.
Clavería, H.
author_role author
author2 Christen, A.
Cure, M.
Cidale, Lydia Sonia
Venero, Roberto Oscar José
Arcos, C.
Gormaz Matamala, A.
Haucke, Maximiliano
Escarate, P.
Clavería, H.
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv HYDRODYNAMICS
METHODS: ANALYTICAL
STARS: EARLY-TYPE
STARS: MASS-LOSS
STARS: WINDS, OUTFLOWS
topic HYDRODYNAMICS
METHODS: ANALYTICAL
STARS: EARLY-TYPE
STARS: MASS-LOSS
STARS: WINDS, OUTFLOWS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Accurate mass-loss rates and terminal velocities from massive stars winds are essential to obtain synthetic spectra from radiative transfer calculations and to determine the evolutionary path of massive stars. From a theoretical point of view, analytical expressions for the wind parameters and velocity profile would have many advantages over numerical calculations that solve the complex non-linear set of hydrodynamic equations. In a previous work, we obtained an analytical description for the fast wind regime. Now, we propose an approximate expression for the line-force in terms of new parameters and obtain a velocity profile closed-form solution (in terms of the Lambert W function) for the δ-slow regime. Using this analytical velocity profile, we were able to obtain the mass-loss rates based on the m-CAK theory. Moreover, we established a relation between this new set of line-force parameters with the known stellar and m-CAK line-force parameters. To this purpose, we calculated a grid of numerical hydrodynamical models and performed a multivariate multiple regression. The numerical and our descriptions lead to good agreement between their values.
Fil: Araya, I.. Universidad Mayor; Chile
Fil: Christen, A.. Universidad de Valparaíso; Chile
Fil: Cure, M.. Universidad de Valparaíso; Chile
Fil: Cidale, Lydia Sonia. 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: Venero, Roberto Oscar José. 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: Arcos, C.. Universidad de Valparaíso; Chile
Fil: Gormaz Matamala, A.. Universidad de Valparaíso; Chile. Universidad Adolfo Ibañez; Chile
Fil: Haucke, Maximiliano. 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: Escarate, P.. Universidad Austral de Chile; Chile
Fil: Clavería, H.. Pontificia Universidad Católica de Valparaíso; Chile
description Accurate mass-loss rates and terminal velocities from massive stars winds are essential to obtain synthetic spectra from radiative transfer calculations and to determine the evolutionary path of massive stars. From a theoretical point of view, analytical expressions for the wind parameters and velocity profile would have many advantages over numerical calculations that solve the complex non-linear set of hydrodynamic equations. In a previous work, we obtained an analytical description for the fast wind regime. Now, we propose an approximate expression for the line-force in terms of new parameters and obtain a velocity profile closed-form solution (in terms of the Lambert W function) for the δ-slow regime. Using this analytical velocity profile, we were able to obtain the mass-loss rates based on the m-CAK theory. Moreover, we established a relation between this new set of line-force parameters with the known stellar and m-CAK line-force parameters. To this purpose, we calculated a grid of numerical hydrodynamical models and performed a multivariate multiple regression. The numerical and our descriptions lead to good agreement between their values.
publishDate 2021
dc.date.none.fl_str_mv 2021-06
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/11336/145376
Araya, I.; Christen, A.; Cure, M.; Cidale, Lydia Sonia; Venero, Roberto Oscar José; et al.; Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 504; 2; 6-2021; 2550-2556
0035-8711
1365-2966
CONICET Digital
CONICET
url http://hdl.handle.net/11336/145376
identifier_str_mv Araya, I.; Christen, A.; Cure, M.; Cidale, Lydia Sonia; Venero, Roberto Oscar José; et al.; Analytical solutions for radiation-driven winds in massive stars - II: The δ-slow regime; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 504; 2; 6-2021; 2550-2556
0035-8711
1365-2966
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab995
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/504/2/2550/6219855?redirectedFrom=fulltext
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
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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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