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VERSION:2.0
PRODID:-//Heidelberg University//HePhySTO//EN
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BEGIN:VEVENT
DTEND:20261126T111500Z
UID:1927bfd8ae9f43d735f5612575671c71@physik.uni-heidelberg.de
DTSTAMP:20261007T221215Z
LOCATION:ARI\, Moenchhofstrasse 12-14\, Seminarraum 1.OG
DESCRIPTION:Quenching mechanisms have been extensively studied over the pas
 t decade\, yet identifying which\nprocesses shut down star formation\, thei
 r relative importance\, and on what timescales\, remains a central\nproblem
  in galaxy evolution. In this talk\, I will present the first systematic ce
 nsus of quenching mechanisms using kinematic asymmetries in a large sample 
 (> 6700 galaxies) of spatially resolved galaxies\, providing a unified view
  of what halts star formation in the local Universe (z < 0.2). Our analysis
  reveals that the most effective quenching pathways leave minimal kinematic
  imprints by the time galaxies are fully quenched\, pointing to slow-acting
  processes (>3 Gyr) such as starvation and maintenance feedback. To compare
  these observations with theoretical predictions\, we use mock galaxies fro
 m IllustrisTNG to investigate satellite quenching pathways\, focusing on th
 e role of the circumgalactic medium (CGM). Using a merger-tree-based algori
 thm\, we reconstruct the baryonic\, dark-matter\, structural\, and chemical
  histories of about 7300 spatially\nresolved galaxies\, using time since in
 fall as the physical axis along which quenching unfolds. For the first time
 \, we present the coupled evolution of the hot and cool gas reservoirs afte
 r infall. Satellites lose about 90% of their hot CGM within about 4 Gyr\, w
 ith the depletion increasing with residence time and remaining largely inde
 pendent of stellar mass. The hot gas mass correlates strongly with SFR\, es
 tablishing the CGM as a long-term fuel reservoir. Despite losing little ste
 llar mass\, satellites experience gas depletion and tidal stripping of thei
 r dark matter and metal-poor stellar outskirts\, becoming more compact and 
 metal-rich than centrals at fixed mass. Our results suggest that the gradua
 l erosion of the hot CGM is a key link between infall and the slow shutdown
  of star formation.\n\nImported from https://www.physik.uni-heidelberg.de/h
 ephysto/ (no warranty for accuracy).
URL;VALUE=URI:https://www.physik.uni-heidelberg.de/hephysto/index.php?s=tal
 k&id=13011
SUMMARY:ARI Institute Colloquium: Natan de Isidio - The kinematic imprintin
 g of environmental quenching
DTSTART:20261126T101500Z
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