Synergies between VLTI/MATISSE and ALMA: the ATOMIUM large program
Abstract
Cool evolved stars are important contributors to the chemical enrichment of the interstellar medium. Within their important stellar winds (10^{-8} to 10^{-4} M_⊙ yr^{-1}), complex molecules and dust grains are build that represents pristine building blocks for future stellar and planetary systems. The mechanisms behind the mass loss are only partially understood, yielding to the overall mass loss process being modeled as an empirical prescription in most evolutionary models. We are engaged in a multi-wavelength approach aiming at providing a consistent view of the circumstellar environment of cool evolved stars. The accepted ALMA large program ATOMIUM is at the center of this project. It is supported by optical observations, particularly with the new VLTI/MATISSE instrument. We present here the synergies between the radio and mid-infrared interferometric observations.
- Publication:
-
SF2A-2019: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
- Pub Date:
- December 2019
- Bibcode:
- 2019sf2a.conf..173M
- Keywords:
-
- stars: AGB and post-AGB;
- supergiants;
- stars: mass loss;
- circumstellar matter;
- techniques: high angular resolution;
- techniques: interferometric