Contributed Talk - Splinter Stellar

Friday, 25 September 2020, 11:56   (virtual room M)

Massive star feedback in the Magellanic Clouds and the Bridge

Varsha Ramachandran
University of Potsdam

Massive stars have far-reaching feedback effects that alter the surrounding environment on local, global, and cosmic scales. Spectral analyses of massive stars with adequate stellar-atmosphere models are important to study massive star feedback in detail. At low metallicities, we lack feedback studies of massive stars and the associated large scale ISM structures. We observe low metallicity massive stars associated with large bubbles/shells in the Magellanic Clouds and the Bridge. We will provide estimates of ionizing and stellar wind feedback from spectroscopic analyses of massive stars and comparisons with the observed energetics of the ISM. We will show how key feedback agents change with the physical conditions of the ISM how this affects further starformation.