Work

General-relativistic resistive-magnetohydrodynamic code to study the effect of resistivity in neutron star dynamics

Year: 2025

Type: article

Abstract: Electrical resistivity plays a fundamental role in many astrophysical systems, influencing the evolution of the magnetic field and energy dissipation processes. During the coalescence of two neutron stars, resistive effects can significantly affect the dynamics and gravitational and electromagnetic signatures associated with these events, such as gamma-ray bursts and kilonova emission. Here, we present our new code, named MIR. Developed within the EinsteinToolkit framework, MIR solves the general relativistic magnetohydrodynamic equations in 3D Cartesian coordinates and on a dynamical spacetime using the 3+1 Eulerian formalism, in both the ideal and resistive regimes, filling a crucial gap in the toolkit's capabilities.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/w6zv-slpj

Authors: Kevin Franceschetti, Roberto De Pietri

Institutions: University of Parma, Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Parma

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4410767252

FWCI:

Cites: 75

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Related to: 10