Nebulosities and jets from outbursting evolved stars
Tiina Liimets

TL;DR
This thesis investigates the complex shapes and real-time evolution of nebulae and jets from outbursting evolved stars, combining multi-epoch imaging and spectral data to understand stellar outbursts in late stellar evolution.
Contribution
It presents a comprehensive analysis of stellar outbursts' nebulae and jets, utilizing multi-epoch imaging and spectra to model their 3D dynamical evolution.
Findings
Real-time observation of nebula expansion
3D models of outflow dynamics
Correlation between nebula shapes and stellar outbursts
Abstract
In this PhD Thesis we study the occurrence of powerful stellar outbursts in the late phases of evolution of stars like the Sun. This is one of the most controversial topics in the field, as the extraordinary variety of shapes revealed by observations are not expected to be the result of the evolution of stars that are basically spherical all over their lives. The stellar ejecta that we study occur and develop on time-scales of years, even months. This allows us to study their evolution in real-time. A very rare opportunity in Astrophysics! To this aim, we have gathered over the years a unique collection of multi epoch images, from which we produce "movies" that reveal the expansion of the nebulae as projected in the plane of the sky. Images are complemented by spectra that measure the line-of-sight velocities, also required to build 3D models of the dynamical evolution of the outflows,…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsGalaxies: Formation, Evolution, Phenomena · Stellar, planetary, and galactic studies · Astrophysics and Star Formation Studies
