Hydrodynamics of core-collapse supernovae and their progenitors

B Müller - Living Reviews in Computational Astrophysics, 2020 - Springer
Multi-dimensional fluid flow plays a paramount role in the explosions of massive stars as
core-collapse supernovae. In recent years, three-dimensional (3D) simulations of these …

The multi-messenger picture of compact binary mergers

S Rosswog - International Journal of Modern Physics D, 2015 - World Scientific
In the last decade, enormous progress has been achieved in the understanding of the
various facets of coalescing double neutron star and neutron black hole binary systems. One …

Neutrino-driven winds from neutron star merger remnants

A Perego, S Rosswog, RM Cabezón… - Monthly Notices of …, 2014 - academic.oup.com
We present a detailed, three-dimensional hydrodynamic study of the neutrino-driven winds
emerging from the remnant of a neutron star merger. Our simulations are performed with the …

Magnetorotationally driven supernovae as the origin of early galaxy r-process elements?

C Winteler, R Käppeli, A Perego… - The astrophysical …, 2012 - iopscience.iop.org
We examine magnetorotationally driven supernovae as sources of r-process elements in the
early Galaxy. On the basis of thermodynamic histories of tracer particles from a three …

Neutrino-driven winds in the aftermath of a neutron star merger: nucleosynthesis and electromagnetic transients

D Martin, A Perego, A Arcones… - The Astrophysical …, 2015 - iopscience.iop.org
We present a comprehensive nucleosynthesis study of the neutrino-driven wind in the
aftermath of a binary neutron star merger. Our focus is the initial remnant phase when a …

Construction of approximate entropy measure-valued solutions for hyperbolic systems of conservation laws

US Fjordholm, R Käppeli, S Mishra… - Foundations of …, 2017 - Springer
Entropy solutions have been widely accepted as the suitable solution framework for systems
of conservation laws in several space dimensions. However, recent results in De Lellis and …

On the computation of measure-valued solutions

US Fjordholm, S Mishra, E Tadmor - Acta numerica, 2016 - cambridge.org
A standard paradigm for the existence of solutions in fluid dynamics is based on the
construction of sequences of approximate solutions or approximate minimizers. This …

A well-balanced finite volume scheme for the Euler equations with gravitation-the exact preservation of hydrostatic equilibrium with arbitrary entropy stratification

R Käppeli, S Mishra - Astronomy & Astrophysics, 2016 - aanda.org
Context. Many problems in astrophysics feature flows which are close to hydrostatic
equilibrium. However, standard numerical schemes for compressible hydrodynamics may …

An advanced leakage scheme for neutrino treatment in astrophysical simulations

A Perego, RM Cabezón, R Käppeli - The Astrophysical Journal …, 2016 - iopscience.iop.org
ABSTRACT We present an Advanced Spectral Leakage (ASL) scheme to model neutrinos in
the context of core-collapse supernovae (CCSNe) and compact binary mergers. Based on …

Core-collapse supernovae in the hall of mirrors-A three-dimensional code-comparison project

RM Cabezón, KC Pan, M Liebendörfer… - Astronomy & …, 2018 - aanda.org
Context. Modeling core-collapse supernovae (SNe) with neutrino transport in three
dimensions (3D) requires tremendous computing resources and some level of …