Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-04-22
Astronomy and Astrophysics
Astrophysics
10 pages, 5 figures. Accepted for publication in ApJ Letters. Additional color plots and movies are available at http://www.
Scientific paper
10.1086/589443
In this letter, we briefly describe the evolution of a variety of self-gravitating protoplanetary disk models that contain annular grooves (e.g. gaps) in their surface density. These grooves are inspired by the density gaps that are presumed to open in response to the formation of a giant planet. Our work provides an extension of the previously studied groove modes that are known in the context of stellar disks. The emergence of spiral gravitational instabilities (GI) is predicted via a generalized eigenvalue code that performs a linear analysis, and confirmed with hydrodynamical simulations. We find the presence of a groove drives a fast-growing two-armed mode in moderately massive disks, and extends the importance of self-gravitating instabilities down to lower disk masses than for which they would otherwise occur. We discuss the potential importance of this instability in the context of planet formation, e.g. the modification of the torques driving Type II migration.
Laughlin Gregory
Meschiari Stefano
No associations
LandOfFree
The potential impact of groove modes on Type II planetary migration 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 The potential impact of groove modes on Type II planetary migration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The potential impact of groove modes on Type II planetary migration will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-674495