IALP 13078
INSTITUTO DE ASTROFISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
On some aspects of the stirring rate of planetesimal velocities by a protoplanet
Autor/es:
ADRIÁN BRUNINI; PABLO SANTAMARÍA
Revista:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Editorial:
Blackwell Publishing Limited
Referencias:
Año: 2007 vol. 378 p. 657 - 661
ISSN:
0035-8711
Resumen:
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 nonnegligible 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.
