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SUMMARY:Exploring the Vertical Shear Instability in starlight-heated proto
 planetary disks - David Melon-Fuksman [MPIA Heidelberg]
DTSTART:20250527T130000Z
DTEND:20250527T140000Z
UID:TALK231364@talks.cam.ac.uk
CONTACT:Loren E. Held
DESCRIPTION:In weakly ionized regions of protoplanetary disks\, hydrodynam
 ic instabilities likely play a key role in the development of turbulence\,
  the formation of structures\, and the transport of angular momentum. Amon
 g these\, the vertical shear instability (VSI) stands out as a robust mech
 anism\, requiring only baroclinic stratification and short thermal relaxat
 ion timescales to operate. In this talk\, I will present results from axis
 ymmetric radiation-hydrodynamical simulations of the VSI in passive\, irra
 diated T Tauri disks\, focusing on angular momentum redistribution\, the e
 mergence of secondary instabilities\, and their role in VSI saturation. I 
 will also discuss how dust and molecular cooling shape the regions where t
 he VSI can operate\, and compare these results with current observations o
 f protoplanetary disks.
LOCATION:MR4 DAMTP and online
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