The structure of jets launched from post-AGB binary systems

Understand

We focus on post-asymptotic giant branch (post-AGB) binaries and study the interaction between the different components of these complex systems.

• These components comprise the post-AGB primary, a main sequence secondary, a circumbinary disk, as well as a fast bipolar outflow (jet) launched by the companion.
• We obtained well-sampled time series of high resolution optical spectra over the last decade and these spectra provide the basis of our study.
• The jet is detected in absorption, at superior conjunction, when the line of sight towards the primary goes through the bipolar cone.