A&A 441, 791-806 (2005)
Oligarchic and giant impact growth of terrestrial planets in the presence of gas giant planet migrationM. J. Fogg and R. P. Nelson
Astronomy Unit, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
(Received 17 May 2005 / Accepted 24 June 2005 )
Giant planets found orbiting close to their central stars, the so-called "hot Jupiters", are thought to have originally formed in the cooler outer regions of a protoplanetary disk and then to have migrated inward via tidal interactions with the nebula gas. We present the results of N-body simulations which examine the effect such gas giant planet migration has on the formation of terrestrial planets. The models incorporate a 0.5 Jupiter mass planet undergoing type II migration through an inner protoplanet-planetesimal disk, with gas drag included. Each model is initiated with the inner disk being at successively increased levels of maturity, so that it is undergoing either oligarchic or giant impact style growth as the gas giant migrates.
Key words: planets and satellites: formation -- methods: N-body simulations
© ESO 2005