Date: Wednesday 06-Jul-2022
Time: 1:00-2:00 pm
Location: PSC 1136
Speaker: Kartick Sarkar (HUJI)
Title: "Non-equilibrium ionization in galactic bubbles and winds"
Supernovae-driven bubbles and winds form a major part of the feedback mechanism that controls the flow of baryonic matter in galaxies. Observational estimates of the momentum deposition by supernovae, and mass and energy outflow in galactic winds depend on theoretical modeling of the emission/absorption properties of these systems. Such emission/absorption properties are highly dependent on the ionization state of the plasma which is often assumed to be in equilibrium. The assumption, however, becomes invalid for rapidly evolving plasma. In the talk, I will describe our recent efforts to model some of these systems by considering a self-consistent non-equilibrium ionization network and frequency-dependent radiative transport physics. I will show how the addition of the new physics changes our basic understanding of these systems and what it implies for the observations.
Guidelines and format for the CTC Lunch seminars.
Past CTC Lunch seminars.
For other questions, contact the CTC Lunch host: Shmuel Bialy
SPECIAL ACCOMMODATIONS:
Special accommodations for individuals with disabilities can be made by calling (301) 405-3001. It would be appreciated if we are notified at least one week in advance.
