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SUMMARY:Constraining Galaxy Formation Physics with Digital Twins of Galaxy
  Clusters
DTSTART:20260505T090000Z
DTEND:20260505T100000Z
DTSTAMP:20260515T051800Z
UID:indico-event-136@indico.iap.fr
DESCRIPTION:Speakers: Olivia Mostow (Stockholm University / Princeton Univ
 ersity)\n\nGalaxy clusters\, as the most massive gravitationally bound sys
 tems in the Universe\, are key probes of both cosmology and galaxy formati
 on physics. While modern cosmological simulations successfully reproduce o
 bserved cluster scaling relations at the population level\, these statisti
 cal agreements mask significant degeneracies in the modeling of unresolved
  baryonic processes\, in particular feedback from active galactic nuclei (
 AGN).Breaking these degeneracies requires moving beyond population statist
 ics toward predictions at the level of individual objects. This is challen
 ging in traditional cosmological simulations due to cosmic variance\, but 
 can be overcome using constrained simulations that reproduce the observed 
 large-scale structure of the Local Universe.Using the FLAMINGO–Manticore
  simulations\, we construct digital twins of individual galaxy clusters an
 d assess the ability of current galaxy formation models to reproduce their
  observed properties. We highlight both successes and systematic discrepan
 cies\, and discuss how object-level comparisons provide new constraints on
  baryonic physics. This approach opens a pathway toward more physically ac
 curate models of galaxy formation by directly confronting simulations with
  the detailed properties of observed clusters.\n\nhttps://indico.iap.fr/ev
 ent/136/
LOCATION:Salle des séminaires
URL:https://indico.iap.fr/event/136/
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