On the dynamics of dust grains in a hierarchical environment. I: Binary case
type: Item
instance of: scholarly article
title: On the dynamics of dust grains in a hierarchical environment. I: Binary case
zbMATH Open document ID: 0979.70010
DOI: 10.1023/A:1006321915454
published in: Earth, Moon, and Planets
publication date: 2002-02-19T00:00:00Z
review text: The authors study the stage of planet formation when the particulate material is still dispersed as (sub) millimeter-to-meter sized primordial aggregates. In particular, the authors investigate the response of particles in a protoplanetory disk with radius 100 AU around a solar-like star, in the field of perturbing companions in a range about 300-1600 AU. A series of numerical simulations of hierarchical configurations and gravitational and viscous forces was performed. The evolution of a massive dust disk around binary components is shown to depend mainly on the relative rotation of stellar companions, and on the temperature and mass of the circumstellar disk. These results demonstrate that for binary companions near the dust disk, the perturbations lead to enhanced accretion rate onto the primary, decreasing the lifetime of particles in the protoplanetary disk. As a result, the mass of the disk decreases faster, which leads to a longer lifetime for particles in the disk. In addition, binary companions can induce tidal arms in the dust phase of the disk. By this way, the authors show that the planet formation is, in fact, favoured in binary environment under the condition that the disk size is smaller than the tidal truncation limit for the system.
Mathematics Subject Classification ID: 70F15
Mathematics Subject Classification ID: 85A05
zbMATH DE Number: 1496165
zbMATH Keywords: stellar dynamics
zbMATH Keywords: gravitational forces
zbMATH Keywords: planet formation
zbMATH Keywords: protoplanetory disk
zbMATH Keywords: hierarchical configurations
zbMATH Keywords: viscous forces
zbMATH Keywords: dust disk
zbMATH Keywords: binary components
zbMATH Keywords: perturbations
zbMATH Keywords: enhanced accretion rate
zbMATH Keywords: tidal arms
zbMATH Keywords: tidal truncation limit
author: Carlos de la Fuente Marcos
author: Raúl de la Fuente Marcos
reviewed by: Gasanbek T. Arazov
MaRDI profile type: Publication
full work available at URL: a:1006321915454
OpenAlex ID: W1552539745
description: scientific article; zbMATH DE number 1496165