2 citations · 2 across the 4 of their papers we have counts for
4 papers
Buoyancy torques prevent low-mass planets from stalling in low-turbulence radiative disks
Alexandros Ziampras, Richard P. Nelson, Sijme-Jan Paardekooper
Low-mass planets migrating inwards in laminar protoplanetary disks (PPDs) experience a dynamical corotation torque, which is expected to slow down migration to a stall. However, ba…
Migration of low-mass planets in inviscid disks: the effect of radiation transport on the dynamical corotation torque
Alexandros Ziampras, Richard P. Nelson, Sijme-Jan Paardekooper
Low-mass planets migrate in the type-I regime. In the inviscid limit, the contrast between the vortensity trapped inside the planet's corotating region and the background disk vort…
Buoyancy response of a disk to an embedded planet: a cross-code comparison at high resolution
Alexandros Ziampras, Sijme-Jan Paardekooper, Richard P. Nelson
In radiatively inefficient, laminar protoplanetary disks, embedded planets can excite a buoyancy response as gas gets deflected vertically near the planet. This results in vertical…
Measuring the Numerical Viscosity in Simulations of Protoplanetary Disks in Cartesian Grids -- The Viscously Spreading Ring Revisited
Jibin Joseph, Alexandros Ziampras, Lucas Jordan +2
Hydrodynamical simulations solve the governing equations on a discrete grid of space and time. This discretization causes numerical diffusion similar to a physical viscous diffusio…