281 citations · 625 across the 8 of their papers we have counts for
8 papers
Particle hydrodynamics with accurate gradients: a comparison of different formulations
S. Rosswog
We compare here several modern versions of SPH with a particular focus on the impact of gradient accuracy. We examine specifically an approximation to the "linearly exact" gradient…
Cautionary tales on heating-rate prescriptions in kilonovae
Nikhil Sarin, Stephan Rosswog
A major ingredient for kilonova lightcurves is the radioactive heating rate and its dependence on the electron fraction and velocity of the ejecta and, in principle, on the nuclear…
A simple, entropy-based dissipation trigger for SPH
Stephan Rosswog
Smoothed Particle Hydrodynamics (SPH) schemes need to be enhanced by dissipation mechanisms to handle shocks. Most SPH formulations rely on artificial viscosity and while this is w…
Boosting the accuracy of SPH techniques: Newtonian and special-relativistic tests
S. Rosswog
We study the impact of different discretization choices on the accuracy of SPH and we explore them in a large number of Newtonian and special-relativistic benchmark tests. As a fir…
The Electromagnetic Signals of Compact Binary Mergers
T. Piran, E. Nakar, S. Rosswog
Compact binary mergers are prime sources of gravitational waves, targeted by current and next generation detectors. The question "what is the observable electromagnetic (EM) signat…
The multi-messenger picture of compact object encounters: binary mergers versus dynamical collisions
S. Rosswog, T. Piran, E. Nakar
We explore the multi-messenger signatures of encounters between two neutron stars and between a neutron star and a stellar-mass black hole. We focus on the differences between grav…
Special-relativistic Smoothed Particle Hydrodynamics: a benchmark suite
S. Rosswog
In this paper we test a special-relativistic formulation of Smoothed Particle Hydrodynamics (SPH) that has been derived from the Lagrangian of an ideal fluid. Apart from its symmet…
Enhancing SPH using moving least-squares and radial basis functions
R. A. Brownlee, P. Houston, J. Levesley +1
In this paper we consider two sources of enhancement for the meshfree Lagrangian particle method smoothed particle hydrodynamics (SPH) by improving the accuracy of the particle app…