Spritz: General Relativistic Magnetohydrodynamics with Neutrinos
arXiv:2012.10174 · doi:10.1088/1361-6382/abebb7
Abstract
We here present a new version of the publicly available general relativistic magnetohydrodynamic (GRMHD) code , which now includes an approximate neutrino leakage scheme able to handle neutrino cooling and heating. The leakage scheme is based on the publicly available code, with a few modifications in order to properly work with . We discuss the involved equations, physical assumptions, and implemented numerical methods, along with a large battery of general relativistic tests performed with and without magnetic fields. Our tests demonstrate the correct implementation of the neutrino leakage scheme, paving the way for further improvements of our neutrino treatment and the first application to magnetized binary neutron star mergers. We also discuss the implementation in the code of high-order methods for a more accurate evolution of hydrodynamical quantities.
34 pages, 16 figures. The code is available on Zenodo as version 1.1.0 at https://doi.org/10.5281/zenodo.3689751. Initial data and equation of state used in this paper can be downloaded from https://drive.google.com/drive/folders/1kGBRW_AhKjHrOi76uXXPRyaCc1BfgqQN?usp=sharing
References in corpus (17)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Multi-messenger Observations of a Binary Neutron Star Merger
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- Origin of the heavy elements in binary neutron-star mergers from a gravitational wave event
- Spectroscopic identification of r-process nucleosynthesis in a double neutron star merger
- A kilonova as the electromagnetic counterpart to a gravitational-wave source
- The X-ray counterpart to the gravitational wave event GW 170817
- A Radio Counterpart to a Neutron Star Merger
- The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. V. Rising X-ray Emission from an Off-Axis Jet
- The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. VI. Radio Constraints on a Relativistic Jet and Predictions for Late-Time Emission from the Kilonova Ejecta
- ECHO: an Eulerian Conservative High Order scheme for general relativistic magnetohydrodynamics and magnetodynamics
- Accurate evolutions of inspiralling and magnetized neutron-stars: equal-mass binaries
- WhiskyMHD: a new numerical code for general relativistic magnetohydrodynamics
- Impact of an improved neutrino energy estimate on outflows in neutron star merger simulations
- Neutron star-black hole mergers with a nuclear equation of state and neutrino cooling: Dependence in the binary parameters
- Stellar core collapse in full general relativity with microphysics - Formulation and Spherical collapse test -
- The role of weak interactions in dynamic ejecta from binary neutron star mergers