Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe it

Autores
Carpintero, Daniel Diego; Wachlin, Felipe Carlos
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have classified orbits in a stationary triaxial stellar system created from a cold dissipationless collapse of 100,000 particles. In order to integrate the orbits, two potential approximations with different fitting functions were used in turn. We found that the relative amount of chaotic versus regular orbits does depend on the chosen approximation of potential, even though both models resulted in very good fits of the underlying exact potential. On the other hand, the content of regular orbits, i.e., its distribution among main families, does not strongly depend of the potential approximation, being therefore a more robust signature of the gravitational system under study.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Astronomía
Triaxial stellar systems
Stellar orbits
Numerical methods
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:10915/130461
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/130461
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe itCarpintero, Daniel DiegoWachlin, Felipe CarlosAstronomíaTriaxial stellar systemsStellar orbitsNumerical methodsWe have classified orbits in a stationary triaxial stellar system created from a cold dissipationless collapse of 100,000 particles. In order to integrate the orbits, two potential approximations with different fitting functions were used in turn. We found that the relative amount of chaotic versus regular orbits does depend on the chosen approximation of potential, even though both models resulted in very good fits of the underlying exact potential. On the other hand, the content of regular orbits, i.e., its distribution among main families, does not strongly depend of the potential approximation, being therefore a more robust signature of the gravitational system under study.Facultad de Ciencias Astronómicas y Geofísicas2006-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf129-136http://sedici.unlp.edu.ar/handle/10915/130461enginfo:eu-repo/semantics/altIdentifier/issn/0923-2958info:eu-repo/semantics/altIdentifier/issn/1572-9478info:eu-repo/semantics/altIdentifier/doi/10.1007/s10569-006-9039-4info: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:UNLP2025-10-15T11:23:57Zoai:sedici.unlp.edu.ar:10915/130461Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:23:58.162SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe it
title Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe it
spellingShingle Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe it
Carpintero, Daniel Diego
Astronomía
Triaxial stellar systems
Stellar orbits
Numerical methods
title_short Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe it
title_full Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe it
title_fullStr Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe it
title_full_unstemmed Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe it
title_sort Sensitivity of the orbital content of a model stellar system to the potential approximation used to describe it
dc.creator.none.fl_str_mv Carpintero, Daniel Diego
Wachlin, Felipe Carlos
author Carpintero, Daniel Diego
author_facet Carpintero, Daniel Diego
Wachlin, Felipe Carlos
author_role author
author2 Wachlin, Felipe Carlos
author2_role author
dc.subject.none.fl_str_mv Astronomía
Triaxial stellar systems
Stellar orbits
Numerical methods
topic Astronomía
Triaxial stellar systems
Stellar orbits
Numerical methods
dc.description.none.fl_txt_mv We have classified orbits in a stationary triaxial stellar system created from a cold dissipationless collapse of 100,000 particles. In order to integrate the orbits, two potential approximations with different fitting functions were used in turn. We found that the relative amount of chaotic versus regular orbits does depend on the chosen approximation of potential, even though both models resulted in very good fits of the underlying exact potential. On the other hand, the content of regular orbits, i.e., its distribution among main families, does not strongly depend of the potential approximation, being therefore a more robust signature of the gravitational system under study.
Facultad de Ciencias Astronómicas y Geofísicas
description We have classified orbits in a stationary triaxial stellar system created from a cold dissipationless collapse of 100,000 particles. In order to integrate the orbits, two potential approximations with different fitting functions were used in turn. We found that the relative amount of chaotic versus regular orbits does depend on the chosen approximation of potential, even though both models resulted in very good fits of the underlying exact potential. On the other hand, the content of regular orbits, i.e., its distribution among main families, does not strongly depend of the potential approximation, being therefore a more robust signature of the gravitational system under study.
publishDate 2006
dc.date.none.fl_str_mv 2006-10
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/10915/130461
url http://sedici.unlp.edu.ar/handle/10915/130461
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0923-2958
info:eu-repo/semantics/altIdentifier/issn/1572-9478
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10569-006-9039-4
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
129-136
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 13.22299

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