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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 709722.0, MPI für Astronomie / Publikationen_mpia
Transport and accretion in planet-forming disks
Authors:Turner, N. J.; Fromang, S.; Gammie, C.; Klahr, H.; Lesur, G.; Wardle, M.; Bai, X. -. N.
Place of Publication:Tucson, Ariz.
Publisher:University of Arizona Press
Date of Publication (YYYY-MM-DD):2014
Title of Book:Protostars and Planets VI
Start Page:411
End Page:432
Full Name of Book-Editor(s):Beuther, Henrik; Klessen, Ralf S.; Dullemond, Cornelis P.; Henning, Thomas
Audience:Not Specified
Abstract / Description:Planets appear to form in environments shaped by the gas flowing through protostellar disks to the central young stars. The flows in turn are governed by orbital angular momentum transfer. In this chapter we summarize current understanding of the transfer processes best able to account for the flows, including magneto-rotational turbulence, magnetically launched winds, self-gravitational instability, and vortices driven by hydrodynamical instabilities. For each, in turn, we outline the major achievements of the past few years and the outstanding questions. We underscore the requirements for operation, especially ionization for the magnetic processes and heating and cooling for the others. We describe the distribution and strength of the resulting flows and compare them with the long-used phenomenological a-picture, highlighting issues where the fuller physical picture yields substantially different answers. We also discuss the links between magnetized turbulence and magnetically launched outflows, and between magnetized turbulence and hydrodynamical vortices. We end with a summary of the status of efforts to detect specific signatures of the flows.
External Publication Status:published
Document Type:InBook
Communicated by:N. N.
Affiliations:MPI für Astronomie
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