On some aspects of the stirring rate of planetesimal velocities by a protoplanet

We discuss some aspects of the evolution of the relative velocities of a swarm of planetesimals stirred by a protoplanet. We show that the prescriptions most commonly used in semi-analytical `oligarchic growth' models overestimate the relative velocities of planetesimals by a non-negligible fac...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Brunini, Adrián, Santamaría, Pablo Javier
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Astronómicas
planetología
planetas
astrofísica
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/2099
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2007.11805.x/abstract
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-2099
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
planetología
planetas
astrofísica
spellingShingle Ciencias Astronómicas
planetología
planetas
astrofísica
Brunini, Adrián
Santamaría, Pablo Javier
On some aspects of the stirring rate of planetesimal velocities by a protoplanet
topic_facet Ciencias Astronómicas
planetología
planetas
astrofísica
description We discuss some aspects of the evolution of the relative velocities of a swarm of planetesimals stirred by a protoplanet. We show that the prescriptions most commonly used in semi-analytical `oligarchic growth' models overestimate the relative velocities of planetesimals by a non-negligible factor. We discuss the probable origin of this discrepancy, proposing a correction factor that provides good agreement between these prescriptions and the results of numerical experiments. The proposed correction factor can be easily implemented in semi-analytical accretion models.
format Articulo
Articulo
author Brunini, Adrián
Santamaría, Pablo Javier
author_facet Brunini, Adrián
Santamaría, Pablo Javier
author_sort Brunini, Adrián
title On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title_short On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title_full On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title_fullStr On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title_full_unstemmed On some aspects of the stirring rate of planetesimal velocities by a protoplanet
title_sort on some aspects of the stirring rate of planetesimal velocities by a protoplanet
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/2099
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2007.11805.x/abstract
work_keys_str_mv AT bruniniadrian onsomeaspectsofthestirringrateofplanetesimalvelocitiesbyaprotoplanet
AT santamariapablojavier onsomeaspectsofthestirringrateofplanetesimalvelocitiesbyaprotoplanet
bdutipo_str Repositorios
_version_ 1764820465302372354

Ejemplares similares