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Radial and vertical angular momentum transport in protostellar discs

Salmeron, Raquel; Konigl, Arieh; Wardle, Mark


Angular momentum in protostellar discs can be transported either radially, through turbulence induced by the magnetorotational instability (MRI), or vertically, through the torque exerted by a large-scale magnetic field. We present a model of steady-state discs where these two mechanisms operate at the same radius and derive approximate criteria for their occurrence in an ambipolar diffusion dominated disc. We obtain "weak field" solutions-which we associate with the MRI channel modes in a...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Astrophysics and Space Science
DOI: 10.1007/s10509-007-9563-z


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