Talk abstract details

Shaping proto-Planetary Nebulae by binary systems
Angels Riera, Pablo Velazquez, Wolfgang Steffen, Alex Raga, Jorge Canto

Abstract

We present the results of 3D hydrodynamic simulations aimed to explore the binary scenario for shaping bipolar, point- and
mirror-symmetric proto-Planetary Nebulae. We consider a jet launched by the secondary star of a binary system, located at the center of the PPN, which propagates within a circumstellar medium swept previously
up by the wind of the giant companion. As a result of the presence of the companion star, the accretion disk around the jet source is likely to precess. We apply the combination of an orbital motion plus a precession to the well-known proto-PNe Red Rectangle and
CRL 618.