Speaker
Description
X-ray observations by Chandra reveal the presence of bright spherical regions within the kilo parsec-scale jet of Centaurus A. While several models have attempted to explain such high-energy emissions at this distance, a promising scenario involves interactions between the jet and AGB stars.
I will present my recent work on jet-star interactions using 2D/3D RHD and RMHD simulations. Our numerical set up focuses on the interaction between the relativistic jet in Centaurus A and an AGB star stellar wind. From the results of these simulations, we estimate the radiative
output with a radiative transfert code and compare our results with Chandra observations. In the second part of my talk I will present our first simulations of a supernova explosion taking place inside a relativistic jet and discuss its dynamical and radiative implications.
Recents works suggest that triggered supernovae can occur inside a jet.
Even though this event would be rare, it could the inset of a very important radiative output, in term of neutrino production and gamma-rays emission.
