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Indirect forces in disc-planet interaction
Roman R. Rafikov, Nicolas P. Cimerman, Callum W. Fairbairn +1
Gravitational coupling between a protoplanetary disc and an embedded planet is often studied in a frame attached to a central star. This frame is non-inertial because of the stella…
Pushing the limits of eccentricity in planet-disc interactions
Callum W. Fairbairn, Alexander J. Dittmann
Modelling the gravitational interaction between an eccentric perturber and a differentially shearing gas disc is a longstanding problem with various astrophysical applications, ran…
On the Terminal Spins of Accreting Stars and Planets: Boundary Layers
Alexander J. Dittmann
The origin of the spins of giant planets is an open question in astrophysics. As planets and stars accrete from discs, if the specific angular momentum accreted corresponds to that…
Modified Hermite Integrators of Arbitrary Order
Alexander J. Dittmann
We present a family of modified Hermite integrators of arbitrary order possessing superior behaviour for the integration of Keplerian and near-Keplerian orbits. After recounting th…