Professor Suoqing Ji：Microphysical and non-thermal processes in the circumgalactic medium: turbulence, magnetic fields and cosmic rays
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars
Speaker:
Professor Suoqing Ji, Shanghai Astronomical Observatory, Chinese Academy of Sciences
Inviter:
Associate Professor Bin Shi
Title:
Microphysical and non-thermal processes in the circumgalactic medium: turbulence, magnetic fields and cosmic rays
Language:
Chinese
Time & Venue:
2023.03.13 14:00-15:00 Z311
Abstract:
Multiphase gas structure is ubiquitous in our universe. Recent observations suggest that large quantities of cool (10^4 K) gas are detected in the circumgalactic medium (CGM) of galaxy halos, which extends up to a few times of galactic virial radius. In addition, warm gas at a few 10^5 K is found to be tightly associated with the star-forming galaxies, but not the quenched ones. However, the origin and fate of such multiphase gas remain unclear. In this talk, I will discuss how magnetic fields, turbulent mixing layers and cosmic rays can play a crucial role in the formation and stability of the multiphase CGM.
