Issue |
A&A
Volume 462, Number 1, January IV 2007
|
|
---|---|---|
Page(s) | 355 - 369 | |
Section | Planets and planetary systems | |
DOI | https://doi.org/10.1051/0004-6361:20066326 | |
Published online | 24 October 2006 |
Dust accretion onto high-mass planets
Leiden Observatory, Leiden University, Postbus 9513, 2300 RA Leiden, The Netherlands e-mail: S.Paardekooper@damtp.cam.ac.uk
Received:
31
August
2006
Accepted:
23
October
2006
Aims.We study the accretion of dust particles of various sizes onto embedded massive gas giant planets, where we take into account the structure of the gas disk due to the presence of the planet. The accretion rate of solids is important for the structure of giant planets: it determines the growth rate of the solid core that may be present as well as their final enrichment in solids.
Methods.We use the RODEO hydrodynamics solver to solve the flow equations for the gas, together with a particle approach for the dust. The solver for the particles' equations of motion is implicit with respect to the drag force, which allows us to treat the whole dust size spectrum.
Results.We find that dust accretion is limited to the smallest particle
sizes. The largest particles get trapped in outer mean-motion
resonances with the planet, while particles of intermediate size
are pushed away from the orbit of the planet by the density
structure in the gas disk. Only particles smaller than
approximately
may accrete on a planet
with the mass of Jupiter. For a ten times less massive planet
. The strongly reduced accretion of dust
makes it very hard to enrich a newly formed giant planet in solids.
Key words: hydrodynamics / methods: numerical / planets and satellites: formation
© ESO, 2007
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.