Issue |
EPJ Web of Conferences
Volume 46, 2013
Instabilities and Structures in Proto-Planetary Disks
|
|
---|---|---|
Article Number | 05001 | |
Number of page(s) | 4 | |
Section | Migration and Stability | |
DOI | https://doi.org/10.1051/epjconf/20134605001 | |
Published online | 11 April 2013 |
https://doi.org/10.1051/epjconf/20134605001
Vortex migration in protoplanetary discs
1 DAMTP, University of
Cambridge, Wilberforce
Road, Cambridge
CB3 0WA, United
Kingdom
2 UJF-Grenoble 1 / CNRS-INSU, Institut
de Planetologie et d’Astrophysique de Grenoble (IPAG) UMR 5274,
Grenoble, F-38041,
France
a e-mail: S.Paardekooper@damtp.cam.ac.uk
Vortices embedded in protoplanetary discs can act as obstacles to the unperturbed disc flow. The resulting velocity perturbations propagate away from the vortex in the form of density waves that transport angular momentum. Any asymmetry between the inner and the outer density wave means that the region around the vortex has to change its angular momentum. We find that this leads to orbital migration of the vortex. Asymmetric waves always arise except in the case of a disc with constant pressure, for isothermal as well as non-isothermal discs. Depending on the size and strength of the vortex, the resulting migration time scales can be as short as a few thousand orbits.
© Owned by the authors, published by EDP Sciences, 2013
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.