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Low mass planet migration in magnetically torqued dead zones - I. Static migration torque
Colin P. McNally, Richard P. Nelson, Sijme-Jan Paardekooper +2
Motivated by models suggesting that the inner planet forming regions of protoplanetary discs are predominantly lacking in viscosity-inducing turbulence, and are possibly threaded b…
Gravito-turbulence and the excitation of small-scale parametric instability in astrophysical discs
A. Riols, H. Latter, S-J. Paardekooper
Young protoplanetary discs and the outer radii of active galactic nucleii may be subject to gravitational instability and, as a consequence, fall into a `gravitoturbulent' state. W…
The role of gap edge instabilities in setting the depth of planet gaps in protoplanetary discs
Paul Hallam, Sijme-Jan Paardekooper
It is known that an embedded massive planet will open a gap in a protoplanetary disc via angular momentum exchange with the disc material. The resulting surface density profile of…
Multidimensional upwind hydrodynamics on unstructured meshes using Graphics Processing Units I. Two-dimensional uniform meshes
Sijme-Jan Paardekooper
We present a new method for numerical hydrodynamics which uses a multidimensional generalisation of the Roe solver and operates on an unstructured triangular mesh. The main advanta…