3D GRMHD simulations of
binary neutron star merger

The movies below present the results of the farthest
jet propagation in GRMHD simulations of BNS.

Jet launching and propagation in BNS ejecta

Following the merger of two neutron stars, an accretion disk forms around the newly formed black hole. The magnetic flux that falls onto the black hole generates through Blandford-Znajek mechanism (Blandford & Znajek 1977) Poynting flux dominated jets along the polar axes. In our simulations the metric is tilted to avoid numerical dissipation on the jet axis.

Meridional slice of the logarithmic mass density.
Meridional slice of the logarithmic magnetization.
Meridional slice of the logarithmic magnetic field.
Meridional slice of the logarithmic kinetic energy density.
Meridional slice of the logarithmic mass density near the BH (top) and moving with the jet (bottom).
Comparison of meridional slices of the logarithmic magnetization (top) and Lorentz factor (bottom).
Comparison of meridional slices of the logarithmic mass density (top) and logarithmic kinetic energy density (bottom).

The simulations have been conducted with the code H-AMR

For more videos of jets in various cosmic explosions,
including the double NS merger GW170817
click here