Back to Volume
Paper: Magnetic Field Structure of Relativistic Jets in AGNs
Volume: 386, Extragalactic Jets: Theory and Observation from Radio to Gamma Ray
Page: 488
Authors: Roca-Sogorb, M.; Perucho, M.; Gómez, J.L.; Martí, J.M.; Antón, L.; Aloy, M.A.; Agudo, I.
Abstract: We present numerical relativistic magnetohydrodynamic and emission simulations aimed to study the role played by the magnetic field in the emission and dynamics of relativistic jets in Active Galactic Nuclei (AGN). We have considered relativistic overpressured jets carrying helical magnetic fields, analyzing the influence of the magnetization parameter and pitch angle of the magnetic field. The helical structure of the magnetic field leads to an asymmetry in the emission across the jet width, depending on the relative orientation of the line of sight and the pitch angle of the magnetic field, with the electric vector position angles (EVPA) oriented either paralel or penpendicular to the jet axis. We study the formation and evolution downstream of a strong plane perpendicular shock produced by an increase of the magnetization parameter at the jet inlet. EVPAs rotate from their initial oblique configuration to a perpendicular distribution as the shock evolves from conical to plane perpendicular.
Back to Volume