1.3k citations · 11.4k across the 115 of their papers we have counts for
115 papers
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…
Modeling planet-induced gaps and rings in ALMA disks: the role of in-plane radiative diffusion
Alexandros Ziampras, Richard P. Nelson, Roman R. Rafikov
ALMA observations of protoplanetary disks in dust continuum emission reveal a variety of annular structures. Attributing the existence of such features to embedded planets is a pop…
Global N-body simulations of circumbinary planet formation around Kepler-16 and -34 analogues I: Exploring the pebble accretion scenario
Gavin A. L. Coleman, Richard P. Nelson, Amaury H. M. J. Triaud
Numerous circumbinary planets have been discovered in surveys of transiting planets. Often, these planets are found to orbit near to the zone of dynamical instability, close to the…
Radial-velocity discovery of a second planet in the TOI-1338/BEBOP-1 circumbinary system
Matthew R. Standing, Lalitha Sairam, David V. Martin +24
We report the detection of a gas-giant planet in orbit around both stars of an eclipsing binary star system that also contains the smaller, inner transiting planet TOI-1338b. The n…
Hydrodynamic turbulence in disks with embedded planets
Alexandros Ziampras, Wilhelm Kley, Richard P. Nelson
The vertical shear instability (VSI) is a source of hydrodynamic turbulence that can drive vigorous vertical mixing and moderate levels of accretion in protoplanetary disks, and it…