MHD jet propagation. The case of DG-Tau

The aim of the work is to perform numerical simulations of stellar jets in propagation region with consistent nozzle conditions from launching simulations. This novel approach provides a global picture of jet and highlight the launching as well as its interaction with the ambient medium. The flow parameters observed at a distance of few AU from the protostellar jet DG Tau have been eventually used to settle the jet inflow conditions values whereas the profiles of different quantities are obtained from steady state launching simulation, and a new simulation has been run on typical stellar jets time and length scales. We also investigate the effects of cooling in these jets. We find evidence of density knots in our adiabatic simulations whereas the cooling flow have much lesser and weaker knots. 1. Introduction