EAS Publications Series
Volume 41, 2010Physics and Astrophysics of Planetary Systems
|Page(s)||171 - 175|
|Published online||08 January 2010|
T. Montmerle, D. Ehrenreich and A.-M. Lagrange (eds)
EAS Publications Series, 41 (2010) 171-175
Dispersal of protoplanetary disks by wind stripping
Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC, USA
Corresponding author: firstname.lastname@example.org
We present a model for the dispersal of protoplanetary disks by winds from either the central star or the inner disk. These winds obliquely strike the flaring disk surface and strip away disk material by entraining it in an outward radial-moving flow at the disk-wind interface. This interface lies several disk scale heights above the mid plane. The disk dispersal time depends on the velocity at which disk material flows into the mixing layer. If this velocity is ~10% of the sound speed, the disk dispersal time at ~1–10 AU is ~5 Myr for a 0.01 M๏ disk around a solar mass star, with a spherical wind launched from the inner disk or central star with a typical mass loss rate of 10-8 M๏yr-1 and terminal velocity of vw = 100 kms-1. We conclude that wind stripping is not a dominant disk dispersal mechanism compared with viscous accretion and photoevaporation. Nevertheless, wind stripping may affect the evolution of the intermediate disk regions.
© EAS, EDP Sciences, 2010
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.