A simple method to compensate softening effects in N-body simulations of spherical stellar systems
- Autores
- Muzzio, Juan Carlos
- Año de publicación
- 2005
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Simulations of stellar systems in volve, first, creating a model and, subsequently, following its evolution through numerical integration of the equations of motion. The models can be generated from theoretical distributions obtained from the Newtonian potential, but the integration demands resorting to softened potentials in order to reduce relaxation effects. Usually, the difference between both potentials causes only negligible alterations in the model, but in some cases (e.g., cuspy distributions) it can substantially alter it. Here we present a model-independent simple method to correct this problem in simulations of spherical stellar systems
La simulación de sistemas estelares requiere, primero, crear un modelo y , luego, seguir su evolución mediante la integración numérica de las ecuaciones del movimiento. Los modelos pueden generarse a partir de distribuciones teóricas obtenidas del potencial Newtoniano, pero la integración requiere recurrir a potenciales ablandados para reducir los efectos de relajamiento. Habitualmente, la diferencia entre am bos potenciales sólo causa alteraciones insignificantes en el modelo, pero en ciertos casos (por ejemplo, distribuciones muy concentradas) puede alterarlos en forma substancial. Aquí presentamos un método simple, independiente del modelo, que corrige este problema en simulaciones de sistemas estelares esféricos.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Astronomía
Física
Ciencias Naturales
Ciencias Exactas
N-body
Spherical galaxies
Globular clusters - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/93605
Ver los metadatos del registro completo
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A simple method to compensate softening effects in N-body simulations of spherical stellar systemsMuzzio, Juan CarlosAstronomíaFísicaCiencias NaturalesCiencias ExactasN-bodySpherical galaxiesGlobular clustersSimulations of stellar systems in volve, first, creating a model and, subsequently, following its evolution through numerical integration of the equations of motion. The models can be generated from theoretical distributions obtained from the Newtonian potential, but the integration demands resorting to softened potentials in order to reduce relaxation effects. Usually, the difference between both potentials causes only negligible alterations in the model, but in some cases (e.g., cuspy distributions) it can substantially alter it. Here we present a model-independent simple method to correct this problem in simulations of spherical stellar systemsLa simulación de sistemas estelares requiere, primero, crear un modelo y , luego, seguir su evolución mediante la integración numérica de las ecuaciones del movimiento. Los modelos pueden generarse a partir de distribuciones teóricas obtenidas del potencial Newtoniano, pero la integración requiere recurrir a potenciales ablandados para reducir los efectos de relajamiento. Habitualmente, la diferencia entre am bos potenciales sólo causa alteraciones insignificantes en el modelo, pero en ciertos casos (por ejemplo, distribuciones muy concentradas) puede alterarlos en forma substancial. Aquí presentamos un método simple, independiente del modelo, que corrige este problema en simulaciones de sistemas estelares esféricos.Facultad de Ciencias Astronómicas y Geofísicas2005-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf41-44http://sedici.unlp.edu.ar/handle/10915/93605enginfo:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2005RMxAA..41...41Minfo:eu-repo/semantics/altIdentifier/url/http://www.astroscu.unam.mx/rmaa/RMxAA..41-1/PDF/RMxAA..41-1_jmuzzio.pdfinfo:eu-repo/semantics/altIdentifier/issn/1405-2059info:eu-repo/semantics/altIdentifier/hdl/11336/38511info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/2.5/ar/Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:00:16Zoai:sedici.unlp.edu.ar:10915/93605Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:00:16.653SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
A simple method to compensate softening effects in N-body simulations of spherical stellar systems |
title |
A simple method to compensate softening effects in N-body simulations of spherical stellar systems |
spellingShingle |
A simple method to compensate softening effects in N-body simulations of spherical stellar systems Muzzio, Juan Carlos Astronomía Física Ciencias Naturales Ciencias Exactas N-body Spherical galaxies Globular clusters |
title_short |
A simple method to compensate softening effects in N-body simulations of spherical stellar systems |
title_full |
A simple method to compensate softening effects in N-body simulations of spherical stellar systems |
title_fullStr |
A simple method to compensate softening effects in N-body simulations of spherical stellar systems |
title_full_unstemmed |
A simple method to compensate softening effects in N-body simulations of spherical stellar systems |
title_sort |
A simple method to compensate softening effects in N-body simulations of spherical stellar systems |
dc.creator.none.fl_str_mv |
Muzzio, Juan Carlos |
author |
Muzzio, Juan Carlos |
author_facet |
Muzzio, Juan Carlos |
author_role |
author |
dc.subject.none.fl_str_mv |
Astronomía Física Ciencias Naturales Ciencias Exactas N-body Spherical galaxies Globular clusters |
topic |
Astronomía Física Ciencias Naturales Ciencias Exactas N-body Spherical galaxies Globular clusters |
dc.description.none.fl_txt_mv |
Simulations of stellar systems in volve, first, creating a model and, subsequently, following its evolution through numerical integration of the equations of motion. The models can be generated from theoretical distributions obtained from the Newtonian potential, but the integration demands resorting to softened potentials in order to reduce relaxation effects. Usually, the difference between both potentials causes only negligible alterations in the model, but in some cases (e.g., cuspy distributions) it can substantially alter it. Here we present a model-independent simple method to correct this problem in simulations of spherical stellar systems La simulación de sistemas estelares requiere, primero, crear un modelo y , luego, seguir su evolución mediante la integración numérica de las ecuaciones del movimiento. Los modelos pueden generarse a partir de distribuciones teóricas obtenidas del potencial Newtoniano, pero la integración requiere recurrir a potenciales ablandados para reducir los efectos de relajamiento. Habitualmente, la diferencia entre am bos potenciales sólo causa alteraciones insignificantes en el modelo, pero en ciertos casos (por ejemplo, distribuciones muy concentradas) puede alterarlos en forma substancial. Aquí presentamos un método simple, independiente del modelo, que corrige este problema en simulaciones de sistemas estelares esféricos. Facultad de Ciencias Astronómicas y Geofísicas |
description |
Simulations of stellar systems in volve, first, creating a model and, subsequently, following its evolution through numerical integration of the equations of motion. The models can be generated from theoretical distributions obtained from the Newtonian potential, but the integration demands resorting to softened potentials in order to reduce relaxation effects. Usually, the difference between both potentials causes only negligible alterations in the model, but in some cases (e.g., cuspy distributions) it can substantially alter it. Here we present a model-independent simple method to correct this problem in simulations of spherical stellar systems |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-12 |
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/10915/93605 |
url |
http://sedici.unlp.edu.ar/handle/10915/93605 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2005RMxAA..41...41M info:eu-repo/semantics/altIdentifier/url/http://www.astroscu.unam.mx/rmaa/RMxAA..41-1/PDF/RMxAA..41-1_jmuzzio.pdf info:eu-repo/semantics/altIdentifier/issn/1405-2059 info:eu-repo/semantics/altIdentifier/hdl/11336/38511 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5) |
dc.format.none.fl_str_mv |
application/pdf 41-44 |
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