On the number of particles in N-body simulations of planet disk interaction

In this paper we present a new mixed-variables symplectic tree code for planetesimal dynamics, which allows to use a very large number of particles in numerical simulations of planet disk interaction. Furthermore, we discuss how a wrong election of the number of particles to model a planetesimal dis...

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Autores principales: Brunini, Adrián, Santamaría, Pablo Javier, Viturro, Héctor Rubén, Cionco, Rodolfo Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Astronómicas
Planetary systems
Dynamics
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/2098
http://www.sciencedirect.com/science/article/pii/S0032063307001468
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-2098
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Planetary systems
Dynamics
spellingShingle Ciencias Astronómicas
Planetary systems
Dynamics
Brunini, Adrián
Santamaría, Pablo Javier
Viturro, Héctor Rubén
Cionco, Rodolfo Gustavo
On the number of particles in N-body simulations of planet disk interaction
topic_facet Ciencias Astronómicas
Planetary systems
Dynamics
description In this paper we present a new mixed-variables symplectic tree code for planetesimal dynamics, which allows to use a very large number of particles in numerical simulations of planet disk interaction. Furthermore, we discuss how a wrong election of the number of particles to model a planetesimal disk, in order to carry out realistic numerical simulations, can cause spurious result. If the particle number is not enough, the close encounter between the planet and unrealistic massive particles will introduce a stochastic component of planet migration. This has an impact on the migration rate and it can even change its sign. Finally, we describe how to determine the minimum number of disk particles that should be used in numerical simulations, in order to have a correct description of the interaction, especially when the dynamical friction on the planet is the relevant mechanism of migration.
format Articulo
Articulo
author Brunini, Adrián
Santamaría, Pablo Javier
Viturro, Héctor Rubén
Cionco, Rodolfo Gustavo
author_facet Brunini, Adrián
Santamaría, Pablo Javier
Viturro, Héctor Rubén
Cionco, Rodolfo Gustavo
author_sort Brunini, Adrián
title On the number of particles in N-body simulations of planet disk interaction
title_short On the number of particles in N-body simulations of planet disk interaction
title_full On the number of particles in N-body simulations of planet disk interaction
title_fullStr On the number of particles in N-body simulations of planet disk interaction
title_full_unstemmed On the number of particles in N-body simulations of planet disk interaction
title_sort on the number of particles in n-body simulations of planet disk interaction
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/2098
http://www.sciencedirect.com/science/article/pii/S0032063307001468
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AT cioncorodolfogustavo onthenumberofparticlesinnbodysimulationsofplanetdiskinteraction
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