From Dust to Terrestrial Planets — Introduction

Kallenbach, R.; Benz, W.; Lugmair, G. W.

doi:10.1007/978-94-011-4146-8_1

Cited by 2 publications

(1 citation statement)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Circumstellar discs composed of dust and gas have been found around young T Tauri stars (Beckwith & Sargent 1996). Star formation theory suggests a typical lifetime of such circumstellar discs in the range of 10 6 to 10 7 yr, which determines the time frame for planet formation (see Kallenbach et al (2000) and references therein). It is assumed that planets form in these circumstellar (or protoplanetary) discs.…”

Section: Introductionmentioning

confidence: 99%

Simulations of planet-disc interactions using Smoothed Particle Hydrodynamics

Schäfer¹,

Speith

Hipp

et al. 2004

A&A

View full text Add to dashboard Cite

Abstract.We have performed Smoothed Particle Hydrodynamics (SPH) simulations to study the time evolution of one and two protoplanets embedded in a protoplanetary accretion disc. We investigate accretion and migration rates of a single protoplanet depending on several parameters of the protoplanetary disc, mainly viscosity and scale height. Additionally, we consider the influence of a second protoplanet in a long time simulation and examine the migration of the two planets in the disc, especially the growth of eccentricity and chaotic behaviour. One aim of this work is to establish the feasibility of SPH for such calculations considering that usually only grid-based methods are adopted. To resolve shocks and to prevent particle penetration, we introduce a new approach for an artificial viscosity, which consists of an additional artificial bulk viscosity term in the SPH-representation of the Navier-Stokes equation. This allows accurate treatment of the physical kinematic viscosity to describe the shear, without the use of artificial shear viscosity.

show abstract

Section: Introductionmentioning

confidence: 99%