Journal
ICARUS
Volume 232, Issue -, Pages 266-270Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.icarus.2014.01.010
Keywords
Planetary formation; Accretion; Jovian planets; Planet-disk interactions
Categories
Funding
- ANR
- Capital Fund Management's J.P. Aguilar Grant
- MEXT of Japan [23740326, 24103503]
- Grants-in-Aid for Scientific Research [23103004, 24103503, 23740326, 26800229] Funding Source: KAKEN
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We examine the gas circulation near a gap opened by a giant planet in a protoplanetary disk. We show with high resolution 3D simulations that the gas flows into the gap at high altitude over the mid-plane, at a rate dependent on viscosity. We explain this observation with a simple conceptual model. From this model we derive an estimate of the amount of gas flowing into a gap opened by a planet with Hill radius comparable to the scale-height of a layered disk (i.e. a disk with viscous upper layer and inviscid midplane). Our estimate agrees with modern MRI simulations (Gressel, O., Nelson, R.P., Turner, N.J., Ziegler, U. [2013]. arXiv:1309.2871). We conclude that gap opening in a layered disk cannot slow down significantly the runaway gas accretion of Saturn to Jupiter-mass planets. (C) 2014 Elsevier Inc. All rights reserved.
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