Contributed Talk - Splinter Compact

Tuesday, 12 September 2023, 15:40   (H 2036)

Modelling the jet asymmetry in radio galaxies

Ainara Saiz-Pérez, Christian M. Fromm
Julius-Maximilians-Universität Würzburg

Very Long Baseline Interferometric (VLBI) observations of radio galaxies revealed asymmetries between the jet and counterjet at parsec scales. In order to investigate the nature of this asymmetry, we performed Special Relativistic Hydrodynamic simulations of relativistic jets and computed their radiative signature. We injected perturbations at the jet nozzle to mimic the observed variations in the jets and took the finite speed of light into account for the radiative transfer calculations i.e., slow-light approach. In order to compare with VLBI observations we generated realistic synthetic data by taking the properties of the VLBI array and the image reconstruction algorithm into account. The result of our developed end-to-end pipeline showed that perturbed jets together with slow-light radiative transfer calculations can reproduce the observed jet asymmetries.