623 citations · 1.4k across the 17 of their papers we have counts for
8 papers · 1 filter
Hot Jupiters and Central Cavities of Protoplanetary Discs
Szymon Starczewski, Artur J. Gawryszczak, Richard Wunsch +1
We investigate numerically the orbital evolution of massive extrasolar planets within central cavities of their parent protoplanetary discs. Assuming that they arrive at the inner…
Protoplanetary disk fragmentation with varying radiative physics, initial conditions and numerical techniques
Lucio Mayer, Artur Gawryszczak
We review recent results of SPH simulations of gravitational instability in gaseous protoplanetary disks,emphasizing the role of thermodynamics in both isolated and binary systems.…
On gas drag in a circular binary system
P. Ciecielag, S. Ida, A. Gawryszczak +1
We investigate both analytically and numerically the motion of massless particles orbiting primary star in a close circular binary system with particular focus on the gas drag effe…
Fundamental differences between SPH and grid methods
Oscar Agertz, Ben Moore, Joachim Stadel +17
We have carried out a hydrodynamical code comparison study of interacting multiphase fluids. The two commonly used techniques of grid and smoothed particle hydrodynamics (SPH) show…
A comparative study of disc-planet interaction
M. de Val-Borro, R. G. Edgar, P. Artymowicz +20
We perform numerical simulations of a disc-planet system using various grid-based and smoothed particle hydrodynamics (SPH) codes. The tests are run for a simple setup where Jupite…
Two-dimensional models of layered protoplanetary discs - II. The effect of a residual viscosity in the dead zone
R. Wunsch, A. Gawryszczak, H. Klahr +1
We study axisymmetric models of layered protoplanetary discs taking radiative transfer effects into account, and allowing for a residual viscosity in the dead zone. We also explore…
Doppler Tomograms from Hydrodynamical Models of Dwarf Nova Disks
A. J. Gawryszczak, M. Rozyczka
We present three-dimensional models of accretion disks in U Gem - like systems and calculate their Doppler tomograms. The tomograms are based on two different assumptions concernin…
HII regions in symbiotic binaries and their radio emission
A. J. Gawryszczak, J. Mikolajewska, M. Rozyczka
The slow and dense wind from a symbiotic red giant can be significantly deflected toward the orbital plane by the gravitational pull of the companion star. In such an environment,…