On some aspects of the stirring rate of planetesimal velocities by a protoplanet

Autores
Brunini, Adrián; Santamaría, Pablo Javier
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We discuss some aspects of the evolution of the relative velocities of a swarm of planetesimals stirred by a protoplanet. We show that the prescriptions most commonly used in semi-analytical `oligarchic growth' models overestimate the relative velocities of planetesimals by a non-negligible factor. We discuss the probable origin of this discrepancy, proposing a correction factor that provides good agreement between these prescriptions and the results of numerical experiments. The proposed correction factor can be easily implemented in semi-analytical accretion models.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
planetología
planetas
astrofísica
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/2099
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/2099
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling On some aspects of the stirring rate of planetesimal velocities by a protoplanetBrunini, AdriánSantamaría, Pablo JavierCiencias AstronómicasplanetologíaplanetasastrofísicaWe discuss some aspects of the evolution of the relative velocities of a swarm of planetesimals stirred by a protoplanet. We show that the prescriptions most commonly used in semi-analytical `oligarchic growth' models overestimate the relative velocities of planetesimals by a non-negligible factor. We discuss the probable origin of this discrepancy, proposing a correction factor that provides good agreement between these prescriptions and the results of numerical experiments. The proposed correction factor can be easily implemented in semi-analytical accretion models.Facultad de Ciencias Astronómicas y Geofísicas2007info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf657-661http://sedici.unlp.edu.ar/handle/10915/2099enginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2007.11805.x/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2007.11805.xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T10:48:37Zoai:sedici.unlp.edu.ar:10915/2099Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 10:48:39.128SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title On some aspects of the stirring rate of planetesimal velocities by a protoplanet
spellingShingle On some aspects of the stirring rate of planetesimal velocities by a protoplanet
Brunini, Adrián
Ciencias Astronómicas
planetología
planetas
astrofísica
title_short On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title_full On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title_fullStr On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title_full_unstemmed On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title_sort On some aspects of the stirring rate of planetesimal velocities by a protoplanet
dc.creator.none.fl_str_mv Brunini, Adrián
Santamaría, Pablo Javier
author Brunini, Adrián
author_facet Brunini, Adrián
Santamaría, Pablo Javier
author_role author
author2 Santamaría, Pablo Javier
author2_role author
dc.subject.none.fl_str_mv Ciencias Astronómicas
planetología
planetas
astrofísica
topic Ciencias Astronómicas
planetología
planetas
astrofísica
dc.description.none.fl_txt_mv We discuss some aspects of the evolution of the relative velocities of a swarm of planetesimals stirred by a protoplanet. We show that the prescriptions most commonly used in semi-analytical `oligarchic growth' models overestimate the relative velocities of planetesimals by a non-negligible factor. We discuss the probable origin of this discrepancy, proposing a correction factor that provides good agreement between these prescriptions and the results of numerical experiments. The proposed correction factor can be easily implemented in semi-analytical accretion models.
Facultad de Ciencias Astronómicas y Geofísicas
description We discuss some aspects of the evolution of the relative velocities of a swarm of planetesimals stirred by a protoplanet. We show that the prescriptions most commonly used in semi-analytical `oligarchic growth' models overestimate the relative velocities of planetesimals by a non-negligible factor. We discuss the probable origin of this discrepancy, proposing a correction factor that provides good agreement between these prescriptions and the results of numerical experiments. The proposed correction factor can be easily implemented in semi-analytical accretion models.
publishDate 2007
dc.date.none.fl_str_mv 2007
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/10915/2099
url http://sedici.unlp.edu.ar/handle/10915/2099
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2007.11805.x/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2007.11805.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
657-661
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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