Gas Flow Across Gaps in Protoplanetary Disks

Details Gas Flow Across Gaps in Protoplanetary Disks Gas Flow Across Gaps in Protoplanetary Disks

2005-12-12

arxiv.org/abs/astro-ph/0512292v1

Astrophys.J. 641 (2006) 526-533

Astronomy and Astrophysics

Astrophysics

10 pages, 3 figures, 1 table. To appear in The Astrophysical Journal

Scientific paper

10.1086/500356

We analyze the gas accretion flow through a planet-produced gap in a protoplanetary disk. We adopt the alpha disk model and ignore effects of planetary migration. We develop a semi-analytic, one-dimensional model that accounts for the effects of the planet as a mass sink and also carry out two-dimensional hydrodynamical simulations of a planet embedded in a disk. The predictions of the mass flow rate through the gap based on the semi-analytic model generally agree with the hydrodynamical simulations at the 25% level. Through these models, we are able to explore steady state disk structures and over large spatial ranges. The presence of an accreting Jupiter-mass planet significantly lowers the density of the disk within a region of several times the planet's orbital radius. The mass flow rate across the gap (and onto the central star) is typically 10% to 25% of the mass accretion rate outside the orbit of the planet, for planet-to-star mass ratios that range from 5e-5 to 1e-3.

Affiliated with

Also associated with

No associations

Rating

Gas Flow Across Gaps in Protoplanetary Disks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gas Flow Across Gaps in Protoplanetary Disks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas Flow Across Gaps in Protoplanetary Disks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-502067