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On the Nature of Magnetic Turbulence in Rotating, Shearing Flows
Justin Walker, Geoffroy Lesur, Stanislav Boldyrev
The local properties of turbulence driven by the magnetorotational instability (MRI) in rotating, shearing flows are studied in the framework of a shearing-box model. Based on nume…
Spiral-driven accretion in protoplanetary discs - I. 2D models
Geoffroy Lesur, Patrick Hennebelle, Sébastien Fromang
We numerically investigate the dynamics of a 2D non-magnetised protoplanetary disc surrounded by an inflow coming from an external envelope. We find that the accretion shock betwee…
Magnetically driven accretion in protoplanetary discs
Jacob B. Simon, Geoffroy Lesur, Matthew W. Kunz +1
We characterize magnetically driven accretion at radii between 1 au and 100 au in protoplanetary discs, using a series of local non-ideal magnetohydrodynamic (MHD) simulations. The…