Numerical Simulations of Young Stellar Jets: From One Tenth to Parsec Scales

Abstract

We here review the structure and evolution of young stellar Herbig-Haro(HH) jets with the help of fully 3-D hydrodynamical (HD) andmagneto-hydrodynamical (MHD) simulations of radiative cooling jets,giving particular emphasis to the study of giant HH flows, and theeffects of magnetic fields on the general jet structure. Also, we willdiscuss some relevant physical processes that arise from the interactionof these jets with the interestellar environment, like the entrainmentof ambient molecular gas in the jet flow, and some implications of thenumerical results on observed jet phenomena and the associated centralsources.