2 papers
astro-ph.IM2026
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…
astro-ph.HE2025
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…