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SUMMARY:The Physics of Cold-Hot Interfaces in the Multiphase Circumgalacti
 c Medium
DTSTART:20260916T060000Z
DTEND:20260916T070000Z
DTSTAMP:20260923T102200Z
UID:indico-event-5285@indico-tdli.sjtu.edu.cn
DESCRIPTION:Speakers: Suoqing（索清） Ji（季）\n\nHost: Mengtao Tan
 gJoin Tencent Meeting：https://meeting.tencent.com/dm/TS2Z37Se9rTiMeeting
  ID: 578268390 (no password)\nAbstract：The circumgalactic medium (CGM) i
 s a dynamic\, multiphase environment where cool gas\, hot plasma\, and gal
 actic outflows interact across a wide range of scales. The interfaces betw
 een these phases play a central role in regulating mass\, momentum\, and e
 nergy exchange\, and therefore provide a key link between small-scale gas 
 physics and galaxy-scale feedback. I will first give a brief overview of t
 he multiphase CGM and its connection to galactic feedback. I will then dis
 cuss the physics of turbulent mixing layers\, with particular emphasis on 
 charge exchange as a potential probe of otherwise difficult-to-observe col
 d-hot interfaces. Finally\, I will introduce the conditional nonlinear opt
 imal perturbation method as a new approach to identifying the perturbation
 s that produce the strongest nonlinear growth at cold-hot interfaces\, wit
 h broader implications for understanding nonlinear instabilities in astrop
 hysical systems.\nBiography:Dr. Suoqing Ji is an assistant professor at th
 e Center for Astronomy & Astrophysics and the Physics Department\, Fudan U
 niversity. He obtained his Ph.D. in physics from University of California 
 Santa Barbara in 2018\, and then worked at Caltech as a Sherman Fairchild 
 Prize Fellow in theoretical astrophysics from 2018 to 2021. His research i
 nterests include magnetohydrodynamics\, turbulence\, hydrodynamic and ther
 mal instabilities\, cosmic rays\, etc.\, and their application in galactic
  and stellar physics.\n\n \n\nhttps://indico-tdli.sjtu.edu.cn/event/5285/
LOCATION:Tsung-Dao Lee Institute/S4F-SW - Open Area (Tsung-Dao Lee Institu
 te)
URL:https://indico-tdli.sjtu.edu.cn/event/5285/
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