Planet-disk interaction [Elektronische Ressource] : eccentricity excitation and orbital evolution / vorgelegt von Gerben Dirksen

Planet - Disk interaction:Eccentricity excitationand orbital evolutionDissertationzur Erlangung des Grades eines Doktorsder Naturwissenschaftender Fakultat¤ fur¤ Mathematik und Physik¤ ¤der Eberhard-Karls-Universitat zu Tubingenvorgelegt vonGerben Dirksenaus Vlaardingen (Niederlande)2006Tag der mundlichen¤ Prufung:¤ 14. Juni 2006Dekan: Prof. Dr. P. Schmid1. Berichterstatter: Prof. Dr. W. Kley2. Prof. Dr. K. WernerHiermit erklare¤ ich, diese Doktorarbeit selbstandig¤ verfa t und keine anderen als die angegebenenQuellen und Hilfsmittel benutzt zu haben.Gerben DirksenAbstractThis thesis presents the results of numerical simulations on planets embed-ded in a protoplanetary disk with the hydrodynamics codeNIRVANA. We treatthe disk as a viscous uid satisfying the Navier-Stokes equations and integratethese using a nite difierence scheme.We present three sets of calculations. First our participation to the EU codecomparison project is described. In this project we compare the results of a testproblem relevant to planet formation as calculated by many difierent codes.In the second part we investigate a similar problem where we put a 5-Jupitermass planet into the protoplanetary disk. After several hundred orbits the diskand the gap opened by the planet become eccentric. This periodic state is veryrobust and can be sustained inde nitely.Finally we look what happens to the eccentricity of the planetary orbit whenthe planet is allowed to change its orbit.