A Toy Model for the Electromagnetic Output of Neutron-star Merger Prompt Collapse to a Black Hole: Magnetized Neutron-star Collisions

Understand

We present a systematic study of magnetised neutron star head on collisions.

• We investigate the resulting magnetic field geometries as the two neutron stars merge.
• Furthermore, we analyze the luminosity produced in these collisions and monitor the evolution of the magnetic fields from the time of merger until the subsequent production of a black hole.
• At the time of black hole formation the luminosity peaks and rings-down following the decay of the electromagnetic fields.