Abstract

Contributed Talk - Splinter AGN   (MW-1250)

Dynamics and Spectra-Polarimetric Signatures of GRMHD Simulations with Multiple Magnetic Loops

Raoul Kinadeter
JMU Würzburg

Active Galactic Nuclei commonly produce relativistic outflows from the central engine in the form of jets. While objects like Blazars and Quasars launch powerful and persistent jets, some systems show variable transient jets. Even though it is not yet fully understood in detail how AGNs launch their jets, we know that magnetic fields, carried by the accreting plasma, play a crucial role in the jet launching mechanism. We present a general relativistic magneto hydrodynamic (GRMHD) simulation of a supermassive black hole that features an unstable initial magnetic field configuration, in the form of loops of alternating polarity, inside the surrounding plasma. This configuration leads to topology transitions of the magnetic field close to the black hole, which influence the ability of the system to transport angular momentum outwards and therefore introduces a highly variable jet structure and outflow behavior during the evolution of the simulation. In the talk I will also present spectro-polarimetric signatures from the radio to the gamma ray regime, as well as high resolution radio images of our model which can be compared to observations.