Speaker
Description
The exact plasma composition of astrophysical jets remains an open question to date. Jets originate near compact objects, protostars, and active galactic nuclei. Hence, the composition of the jets depends upon the environment in which they form, and it is expected that the composition should affect the dynamics and morphology of the jets. In this work, we aim to investigate the effect of plasma composition on the dynamics of the jets using exact solutions and numerical simulations. We have addressed various aspects, like the formation of reverse shock in the jet, the effect of an expanding cross-section of the jet head on the structure of the jet, and the effect of fluid composition on the evolution of jets. To probe this problem through simulations, we considered various jet models. These models were characterized by the same injection parameters, the same jet kinetic luminosity, and the same Mach numbers but different plasma compositions. The evolution of these models showed that the plasma composition affects the jet head propagation speed, the structure of the jet head, and the morphology despite fixing the initial parameters. We conclude that the electron-proton jets are the slowest and show more pronounced turbulent structures in comparison to other plasma compositions.
