Speaker
Motseothata Tisang
Description
Blazars, radio-loud active galactic nuclei with relativistic jets pointing toward us, exhibit features such as polarized emission and non-thermal, double-peak spectral energy distributions (SEDs). Various parameters, including the magnetic field orientation relative to the jet direction, influence these features.
We developed a polarization-dependent synchrotron and synchrotron self-Compton (SSC) blazar model accounting for the observer's line of sight and different magnetic field orientations relative to the jet axis. Using this model, we simulate perpendicular and oblique (and toroidal) magnetic-field orientations relative to the jet axis and analyze their effects on the SED and linear polarization degree (PD) of a typical blazar.
Our results show that an oblique magnetic field strongly impacts the synchrotron SED component, while the SSC component remains largely unaffected. Interestingly, the PD of the SSC process shows a more pronounced dependence on the field polar angle compared to that of the synchrotron process.
