130 citations · 131 across the 6 of their papers we have counts for
4 papers · 1 filter
Self-gravity in thin protoplanetary discs: 1. The smoothing-length approximation versus the exact self-gravity kernel
S. Rendon Restrepo, T. Rometsch, U. Ziegler +1
Planet-forming discs often contain structures like spiral arms, typically linked to the disc's gravitational forces. In 2D models, an ad hoc softening prescription is commonly used…
Gravito-turbulent bi-fluid protoplanetary discs: 1. An analytical perspective to stratification
S. Rendon Restrepo, U. Ziegler, M. Villenave +1
Context. In Class 0/I and the outskirts of Class II circumstellar discs, the self-gravity of gas significantly affects the disc's vertical hydrostatic equilibrium. The contribution…
Toward an efficient second-order method for computing the surface gravitational potential on spherical-polar meshes
Oliver Gressel, Udo Ziegler
Astrophysical accretion discs that carry a significant mass compared with their central object are subject to the effect of self-gravity. In the context of circumstellar discs, thi…
Global hydromagnetic simulations of a planet embedded in a dead zone: gap opening, gas accretion and formation of a protoplanetary jet
Oliver Gressel, Richard P. Nelson, Neal J. Turner +1
We present global hydrodynamic and magnetohydrodynamic (MHD) simulations with mesh refinement of accreting planets embedded in protoplanetary disks (PPDs). The magnetized disk incl…