ausblenden:
Schlagwörter:
General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
Zusammenfassung:
Binary neutron star mergers are among the most energetic events in our
Universe, with magnetic fields significantly impacting their dynamics,
particularly after the merger. While numerical-relativity simulations that
correctly describe the physics are essential to model their rich phenomenology,
the inclusion of magnetic fields is crucial for realistic simulations. For this
reason, we have extended the BAM code to enable general relativistic
magneto-hydrodynamic (GRMHD) simulations employing a hyperbolic `divergence
cleaning' scheme. We present a large set of standard GRMHD tests and compare
the BAM code to other GRMHD codes, SPRITZ, GRaM-X, and SACRA$_{\rm KK22}$,
which employ different schemes for the evolution of the magnetic fields.
Overall, we find that the BAM code shows a good performance in simple
special-relativistic tests. In addition, we find good agreement and consistent
results when comparing GRMHD simulation results between BAM and SACRA$_{\rm
KK22}$.
