17–19 mai 2016
Meudon site
Fuseau horaire Europe/Paris

On the existence of comet families in extrasolar planetary system

18 mai 2016, 11:15
45m
Amphitheater Building 18 (Meudon site)

Amphitheater Building 18

Meudon site

Talk The dynamic of comets The dynamic of comets

Orateur

Prof. Rudolf Dvorak (Universite de Vienne, Autriche)

Description

We investigate whether there can exist comet families in the extrasolar planetary systems Kepler 90 and HD 10180, systems which consist of six planets; the outermost is a giant. This is done by extensive numerical integrations of millions of hypothetical comets entering the inner system on almost hyperbolic orbits. The goal is to find whether families like the Halley comets or the Jupiter comets can be captured. In addition the role of secular resonances to form such orbits of comets is investigated using analytical methods.

Auteur principal

Prof. Rudolf Dvorak (Universite de Vienne, Autriche)

Co-auteur

Dr Christoph Lhotka (OeAW, IWF, Graz)

Documents de présentation