Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.provenance | CONICET | - |
| dc.creator | Aguilar, L. A. | - |
| dc.creator | Cruz, F. | - |
| dc.creator | Carpintero, Daniel Diego | - |
| dc.date | 2018-02-22T14:21:36Z | - |
| dc.date | 2018-02-22T14:21:36Z | - |
| dc.date | 2002-09 | - |
| dc.date | 2018-02-19T16:54:24Z | - |
| dc.date.accessioned | 2019-04-29T15:36:48Z | - |
| dc.date.available | 2019-04-29T15:36:48Z | - |
| dc.date.issued | 2002-09 | - |
| dc.identifier | Aguilar, L. A.; Cruz, F.; Carpintero, Daniel Diego; A new method to find the potential center of N-body systems; Universidad Nacional Autónoma de México. Instituto de Astronomía; Revista Mexicana de Astronomía y Astrofísica; 38; 9-2002; 225-231 | - |
| dc.identifier | 0185-1101 | - |
| dc.identifier | http://hdl.handle.net/11336/36956 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/297760 | - |
| dc.description | We present a new and fast method to nd the potential center of an N-body distribution. The method uses an iterative algorithm which exploits the fact that the gradient of the potential is null at its center: it uses a smoothing radius to avoid getting trapped in secondary minima. We have tested this method on several random realizations of King models (in which the numerical computation of this center is rather dicult, due to the constant density within their cores), and com- pared its performance and accuracy against a more straightforward, but computer intensive method, based on cartesian meshes of increasing spatial resolution. In all cases, both methods converged to the same center, within the mesh resolution, but the new method is two orders of magnitude faster. We have also tested the method with one astronomical problem: the evolu- tion of a 105 particle King model orbiting around a xed potential that represents our Galaxy. We used a spherical harmonics expansion N-body code, in which the potential center determination is crucial for the correct force computation. We compared this simulation with another one in which a method previously used to determine the expansion center is employed (White 1983). Our routine gives better results in energy conservation and mass loss. | - |
| dc.description | Fil: Aguilar, L. A.. Universidad Nacional Autonoma de Mexico. Instituto de Astronomia; México | - |
| dc.description | Fil: Cruz, F.. Universidad Nacional Autonoma de Mexico. Instituto de Astronomia; México | - |
| dc.description | Fil: Carpintero, Daniel Diego. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Universidad Nacional Autónoma de México. Instituto de Astronomía | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2002RMxAA..38..225C | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/http://www.astrosmo.unam.mx/rmaa/RMxAA..38-2/PDF/RMxAA..38-2_cruz.pdf | - |
| dc.rights | info:eu-repo/semantics/openAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.source.uri | http://hdl.handle.net/11336/36956 | - |
| dc.subject | Globular clusters | - |
| dc.subject | Numerical methods | - |
| dc.subject | N Body simulations | - |
| dc.title | A new method to find the potential center of N-body systems | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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