Diet of the Stars: Mass Accretion and Mass Loss
Abstract
Stars gain and lose material as they evolve - affecting their evolution, circumstellar environments, and interstellar composition. This talk will highlight, compare and contrast selected results from spectroscopic studies in many wavebands - radio, infrared, optical, ultraviolet and X-ray - that inform our understanding of mass accretion and mass loss from cool stars. Spectroscopy reveals the accretion process in young stars, and can detect the presence of winds and mass loss in young and old stars too. New results from ground and space disclose convective hot spots in supergiants encouraging mass loss, puzzling stellar rotation rates, and winds from exoplanet atmospheres.
- Publication:
-
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020
- Bibcode:
- 2020AAS...23540001D