Talk detail

Participant	Alic, Daniela
Institution	Max Planck Institute for Gravitational Physics - Am Muehlenberg 1 - Potsdam-Golm - - Germany

Session	AN4	Accepted	Yes	Order	2	Time	17' + 3'
Talk	Oral abstract	Title	Accurate simulations of binary black hole mergers in force-free electrodynamics
Co-authors
Abstract	I will present a recent study of the electromagnetic emission produced during the inspiral and merger of supermassive black holes immersed in a force-free plasma threaded by a uniform magnetic field. Our results show that although a dual-jet structure is present, the associated luminosity is ~ 100 times smaller than the total one, which is predominantly quadrupolar. I will discuss the details of our implementation of the equations in which the force-free condition is not implemented at a discrete level, but rather obtained via a damping scheme which drives the solution to satisfy the correct condition. The resulting three-dimensional charge distribution produced as a consequence of the inspiral possesses a complex but ordered structure which traces the motion of the two black holes. I will provide quantitative estimates of the scaling of the electromagnetic emission with frequency, with the diffused part having a dependence that is the same as the gravitational-wave one, and discuss the impact of these results on the potential detectability of dual jets from supermassive black holes and the steps necessary for more accurate estimates.