Year: 2021
Type: article
Abstract: We here present a new version of the publicly available general relativistic magnetohydrodynamic (GRMHD) code Spritz , which now includes an approximate neutrino leakage scheme able to handle neutrino cooling and heating. The leakage scheme is based on the publicly available ZelmaniLeak code, with a few modifications in order to properly work with Spritz . 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 Spritz code of high-order methods for a more accurate evolution of hydrodynamical quantities.
Source: Classical and Quantum Gravity
Authors: F Cipolletta, J V Kalinani, E Giangrandi, B Giacomazzo, R Ciolfi, L Sala, B Giudici
Institutions: Rochester Institute of Technology, University of Trento, Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications, University of Padua, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, University of Milano-Bicocca, Brera Astronomical Observatory, Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca, Osservatorio Astronomico di Padova
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Award: G2778756634
OpenAlex ID: W3113453068