Analytical solutions for radiation-driven winds in massive stars, I: the fast regime

Autores
Araya, I.; Curé, Michel; Cidale, Lydia Sonia
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Accurate mass-loss rate estimates are crucial keys in the study of wind properties of massive stars and for testing different evolutionary scenarios. From a theoretical point of view, this implies solving a complex set of differential equations in which the radiation field and the hydrodynamics are strongly coupled. The use of an analytical expression to represent the radiation force and the solution of the equation of motion has many advantages over numerical integrations. Therefore, in this work, we present an analytical expression as a solution of the equation of motion for radiation-driven winds in terms of the force multiplier parameters. This analytical expression is obtained by employing the line acceleration expression given by Villata and the methodology proposed by Müller & Vink. On the other hand, we find useful relationships to determine the parameters for the line acceleration given by Müller & Vink in terms of the force multiplier parameters.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
Hydrodynamics
methods: analytical
stars: early-type
stars: mass-loss
stars: winds, outflows
Hidrodinámica
Método analítico
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:10915/84935
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/84935
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Analytical solutions for radiation-driven winds in massive stars, I: the fast regimeAraya, I.Curé, MichelCidale, Lydia SoniaCiencias AstronómicasHydrodynamicsmethods: analyticalstars: early-typestars: mass-lossstars: winds, outflowsHidrodinámicaMétodo analíticoAccurate mass-loss rate estimates are crucial keys in the study of wind properties of massive stars and for testing different evolutionary scenarios. From a theoretical point of view, this implies solving a complex set of differential equations in which the radiation field and the hydrodynamics are strongly coupled. The use of an analytical expression to represent the radiation force and the solution of the equation of motion has many advantages over numerical integrations. Therefore, in this work, we present an analytical expression as a solution of the equation of motion for radiation-driven winds in terms of the force multiplier parameters. This analytical expression is obtained by employing the line acceleration expression given by Villata and the methodology proposed by Müller & Vink. On the other hand, we find useful relationships to determine the parameters for the line acceleration given by Müller & Vink in terms of the force multiplier parameters.Facultad de Ciencias Astronómicas y Geofísicas2014-10-15info: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/10915/84935enginfo:eu-repo/semantics/altIdentifier/issn/0004-637Xinfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/795/1/81info: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:UNLP2025-09-29T11:16:20Zoai:sedici.unlp.edu.ar:10915/84935Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:21.121SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Analytical solutions for radiation-driven winds in massive stars, I: the fast regime
title Analytical solutions for radiation-driven winds in massive stars, I: the fast regime
spellingShingle Analytical solutions for radiation-driven winds in massive stars, I: the fast regime
Araya, I.
Ciencias Astronómicas
Hydrodynamics
methods: analytical
stars: early-type
stars: mass-loss
stars: winds, outflows
Hidrodinámica
Método analítico
title_short Analytical solutions for radiation-driven winds in massive stars, I: the fast regime
title_full Analytical solutions for radiation-driven winds in massive stars, I: the fast regime
title_fullStr Analytical solutions for radiation-driven winds in massive stars, I: the fast regime
title_full_unstemmed Analytical solutions for radiation-driven winds in massive stars, I: the fast regime
title_sort Analytical solutions for radiation-driven winds in massive stars, I: the fast regime
dc.creator.none.fl_str_mv Araya, I.
Curé, Michel
Cidale, Lydia Sonia
author Araya, I.
author_facet Araya, I.
Curé, Michel
Cidale, Lydia Sonia
author_role author
author2 Curé, Michel
Cidale, Lydia Sonia
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Hydrodynamics
methods: analytical
stars: early-type
stars: mass-loss
stars: winds, outflows
Hidrodinámica
Método analítico
topic Ciencias Astronómicas
Hydrodynamics
methods: analytical
stars: early-type
stars: mass-loss
stars: winds, outflows
Hidrodinámica
Método analítico
dc.description.none.fl_txt_mv Accurate mass-loss rate estimates are crucial keys in the study of wind properties of massive stars and for testing different evolutionary scenarios. From a theoretical point of view, this implies solving a complex set of differential equations in which the radiation field and the hydrodynamics are strongly coupled. The use of an analytical expression to represent the radiation force and the solution of the equation of motion has many advantages over numerical integrations. Therefore, in this work, we present an analytical expression as a solution of the equation of motion for radiation-driven winds in terms of the force multiplier parameters. This analytical expression is obtained by employing the line acceleration expression given by Villata and the methodology proposed by Müller & Vink. On the other hand, we find useful relationships to determine the parameters for the line acceleration given by Müller & Vink in terms of the force multiplier parameters.
Facultad de Ciencias Astronómicas y Geofísicas
description Accurate mass-loss rate estimates are crucial keys in the study of wind properties of massive stars and for testing different evolutionary scenarios. From a theoretical point of view, this implies solving a complex set of differential equations in which the radiation field and the hydrodynamics are strongly coupled. The use of an analytical expression to represent the radiation force and the solution of the equation of motion has many advantages over numerical integrations. Therefore, in this work, we present an analytical expression as a solution of the equation of motion for radiation-driven winds in terms of the force multiplier parameters. This analytical expression is obtained by employing the line acceleration expression given by Villata and the methodology proposed by Müller & Vink. On the other hand, we find useful relationships to determine the parameters for the line acceleration given by Müller & Vink in terms of the force multiplier parameters.
publishDate 2014
dc.date.none.fl_str_mv 2014-10-15
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/84935
url http://sedici.unlp.edu.ar/handle/10915/84935
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0004-637X
info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/795/1/81
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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score 13.070432

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