Dynamical evolution of escaped plutinos, another source of Centaurs
Context. Weakly chaotic orbits that diffuse very slowly have been found to exist in the plutino population. These orbits correspond to long-term plutino escapers and represent the plutinos presently escaping from the resonance. Aims. We perform numerical simulations to explore the dynamical evolutio...
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Formato: | Articulo |
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2010
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/82483 |
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I19-R120-10915-82483 |
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institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Ciencias Astronómicas Kuiper Belt Methods: numerical |
spellingShingle |
Ciencias Astronómicas Kuiper Belt Methods: numerical Di Sisto, Romina Paula Brunini, Adrián Elía, Gonzalo Carlos de Dynamical evolution of escaped plutinos, another source of Centaurs |
topic_facet |
Ciencias Astronómicas Kuiper Belt Methods: numerical |
description |
Context. Weakly chaotic orbits that diffuse very slowly have been found to exist in the plutino population. These orbits correspond to long-term plutino escapers and represent the plutinos presently escaping from the resonance. Aims. We perform numerical simulations to explore the dynamical evolution of plutinos that have recently escaped from the resonance. Methods. The numerical simulations were divided into two parts. In the first, we evolved 20? 000 test particles in the resonance to detect and select the long-term escapers. In the second, we numerically integrated the selected escaped plutinos to study their dynamical post escaped behavior. Results. We characterize the escape routes of plutinos and their evolution in the Centaur zone. We derive a present rate of escape of plutinos of between 1 and 10 every 10 years. The escaped plutinos would have a mean lifetime in the Centaur zone of 108 Myr and their contribution to the Centaur population would be a fraction of smaller than 6% of the total Centaur population. In this way, escaped plutinos would be a secondary source of Centaurs. |
format |
Articulo Articulo |
author |
Di Sisto, Romina Paula Brunini, Adrián Elía, Gonzalo Carlos de |
author_facet |
Di Sisto, Romina Paula Brunini, Adrián Elía, Gonzalo Carlos de |
author_sort |
Di Sisto, Romina Paula |
title |
Dynamical evolution of escaped plutinos, another source of Centaurs |
title_short |
Dynamical evolution of escaped plutinos, another source of Centaurs |
title_full |
Dynamical evolution of escaped plutinos, another source of Centaurs |
title_fullStr |
Dynamical evolution of escaped plutinos, another source of Centaurs |
title_full_unstemmed |
Dynamical evolution of escaped plutinos, another source of Centaurs |
title_sort |
dynamical evolution of escaped plutinos, another source of centaurs |
publishDate |
2010 |
url |
http://sedici.unlp.edu.ar/handle/10915/82483 |
work_keys_str_mv |
AT disistorominapaula dynamicalevolutionofescapedplutinosanothersourceofcentaurs AT bruniniadrian dynamicalevolutionofescapedplutinosanothersourceofcentaurs AT eliagonzalocarlosde dynamicalevolutionofescapedplutinosanothersourceofcentaurs |
bdutipo_str |
Repositorios |
_version_ |
1764820488327004162 |