FRONTIERS IN COMPUTATIONAL ASTROPHYSICS

Particle and Flames in Radiative and Magnetic Flows

October 11-15, 2010
Lyon, France

Contribution of Matthias Gonzalez

Title

Radiation-hydrodynamics effects in stellar jets-ISM interaction

Topics

"Stellar structure and evolution"

Keywords

methods

Abstract

The stellar jets simulations often use a cooling function approximation to treat the radiative transfer. However, in the case where the jet is still embedded in the optically thick molecular cloud, the photons may have a short mean free path needing a detailed radiative transfer treatment. We emphasize here the differences obtained in this latter case, carrying out radiation-hydrodynamics simulations performed with the 3D HERACLES code. We present simulations of the propagation of a jet in an interstellar medium at rest. The results show that the jet is collimated due to purely radiative effects and that a secundary jet can be created.

Talk