Explore a 30-minute conference talk on multi-phase gas in young, star-forming molecular clouds presented by Stefanie Walch-Gassner at the Kavli Institute for Theoretical Physics. Delve into recent advances in observations, computer simulations, and analytical insights regarding the microphysics of fluid dynamics and instabilities in various astrophysical environments. Examine the challenges of understanding the origin, nature, and mixing of multiphase gas across different scales, from intergalactic media to galactic nuclei. Discover how thermal components, cosmic rays, and radiation shape the phase balance in astrophysical plasmas. Learn about the SILCC project, which investigates the multi-phase interstellar medium in star-forming galactic disks, and explore how stellar feedback processes influence ISM structure. Gain insights into the mass distribution of multi-phase ISM, the impact of supernova positions on ISM phase distribution, and the comparison between stellar winds and ionizing radiation for momentum input.
Multi-Phase Gas in and Around Young, Star-Forming Molecular Clouds - Stefanie Walch-Gassner
Kavli Institute for Theoretical Physics via YouTube
Overview
Syllabus
Intro
Multi-phase ISM and molecular cloud formation
Multi-phase model of the atomic ISM
A quick word on Cosmic Rays... Outflows become cooler and smoother
The SILCC project (www.astro.uni-koeln.de/silcc): Typical mass distribution in the multi-phase ISM in a star forming palactic disk
Position of Supernovae with respect to dense gas changes the ISM phase distribution!
Momentum input: Stellar winds vs. ionizing radiation
SILCC-Zoom: MHD simulation + star formation & radiative feedback
Feedback pushes gas into the thermally unstable regime
Stellar feedback processes determine the multi-phase ISM structure
Mass loading and energy loading of outflowing gas
Taught by
Kavli Institute for Theoretical Physics
