Dynamics of relativistic magnetized jets
Abstract
We investigate the propagation of relativistic magnetized jets in a stratified ambent medium. We find that the possible growth of different kind of instabilities brings to different morphological and dynamical properties of the jets. In particular, we find that lower power jets with strong magnetization are susceptibles to current-driven kink instabilities, that result in substantial bending of the jet head. In simulations with lower magnetization, velocity shear driven Kelvin-Helmholtz instabilities lead to a higher level of turbulence, with a substantial deceleration of the jet head advance velocity. Higher power jets are instead more stable, with more elongated cocoon morphologies.
- Publication:
-
Memorie della Societa Astronomica Italiana
- Pub Date:
- 2020
- Bibcode:
- 2020MmSAI..91..273B