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SUMMARY:Probing the Physical State of Warm Gas in NGC 4696: Infrared Diagn
 ostics for the JWST Era
DTSTART;VALUE=DATE-TIME:20261028T181800Z
DTEND;VALUE=DATE-TIME:20261028T181900Z
DTSTAMP;VALUE=DATE-TIME:20261025T100839Z
UID:indico-contribution-3687@nyx.physics.mcgill.ca
DESCRIPTION:Speakers: Olivia Pereira (Université de Montréal)\nHow do su
 permassive black holes (SMBHs) regulate the growth of the most massive gal
 axies? The cycle of gas cooling and AGN feedback is central to this questi
 on\, yet the physical state of the "warm" multiphase gas often remains elu
 sive. In this talk\, I present JWST/NIRSpec IFU observations of the inner 
 640 pc of NGC 4696\, the prototypical BCG of the Centaurus cluster. These 
 data reveal dozens of atomic and molecular emission lines\, including a ri
 ch set of H₂ rovibrational transitions that trace spatial variations in 
 excitation mechanisms at unprecedented resolution. Using Cloudy simulation
 s\, I develop new infrared diagnostics\, analogous to optical BPT diagrams
 \, optimized for JWST observations.\nThese results provide new insights in
 to the physical state and excitation of warm gas in massive galaxies and d
 emonstrate the broader potential of JWST spectroscopy for probing feedback
 \, cooling\, and star–black hole coupling across different environments.
  This work highlights Canada’s significant role in JWST science and its 
 contribution to advancing infrared galaxy evolution research\, fostering p
 ride in our scientific community.\n\nhttps://nyx.physics.mcgill.ca/event/5
 87/contributions/3687/
LOCATION:Online 
URL:https://nyx.physics.mcgill.ca/event/587/contributions/3687/
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