Gennaro D'Angelo

Capture and Evolution of Planetesimals in Circumjovian Disks

Published in The Astrophysical Journal

We study the evolution of planetesimals in evolved gaseous disks that orbit a solar- mass star and harbor a Jupiter-mass planet at $a _ p\ approx 5$ AU. The gas dynamics are modeled with a three-dimensional hydrodynamics code that employs nested grids and achieves a resolution of one Jupiter radius in the circumplanetary disk. The code models solid...

Growth of Jupiter: Enhancement of core accretion by a voluminous low-mass envelope

Published in Icarus

We present calculations of the early stages of the formation of Jupiter via core nucleated accretion and gas capture. The core begins as a seed body of about 350 km in radius and orbits in a swarm of planetesimals whose initial radii range from 15 m to 50 km. The evolution of the swarm accounts for growth and fragmentation, viscous and gravitationa...

Detecting Gaps in Protoplanetary Disks

Published in The Origins of Stars and Planets: The VLT View: Proceedings of the ESO Workshop Held in Garching, Germany, 24–27 April 2001

Numerical simulations show that a Jupiter mass planet is able to dig the gas material along its path. Resulting from this, a density gap is produced within the disk which may represent a large-scale density feature. Based on these hydrodynamical simulations we investigate the possibility to trace planets in circumstellar disks by means of infrared ...

3D Disk-Planet Torques in a Locally Isothermal Disk

On the migration of protogiant solid cores FS Masset1, 2 AIM-UMR 7158, CEA/CNRS/Univ. Paris 7, SAp, Orme des Merisiers, ...

On the migration of protogiant solid cores FS Masset1,2 AIM - UMR 7158, CEA/CNRS/Univ. Paris 7, SAp, Orme des Merisiers, CE-Saclay, 91191 Gif/Yvette Cedex, France [email protected] G. D Angelo3 NASA-ARC, Space Science and Astrobiology Division, MS 245-3, Moffett Field, CA 94035, USA gdangelo@arc.nasa.gov and W. Kley Universit¨t T¨bingen, Institut f¨r ...

Numerical Simulations of Disk-Planet Interactions

The aim of this dissertation is to study the dynamical interactions occurring between a forming planet and its surrounding protostellar environment. This task is accomplished by means of both two-and three-dimensional numerical simulations. In order to render the proper development of the work, results from such calculations are presented according...