Planets opening dust gaps in gas disks

Details Planets opening dust gaps in gas disks Planets opening dust gaps in gas disks

2004-08-11

arxiv.org/abs/astro-ph/0408202v1

Astron.Astrophys. 425 (2004) L9-L18

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, accepted for publication in A&A Letters

Scientific paper

10.1051/0004-6361:200400053

We investigate the interaction of gas and dust in a protoplanetary disk in the presence of a massive planet using a new two-fluid hydrodynamics code. In view of future observations of planet-forming disks we focus on the condition for gap formation in the dust fluid. While only planets more massive than 1 Jupiter mass (MJ) open up a gap in the gas disk, we find that a planet of 0.1 MJ already creates a gap in the dust disk. This makes it easier to find lower-mass planets orbiting in their protoplanetary disk if there is a significant population of mm-sized particles.

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