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PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-9573
DTSTART:20260226T213000Z
DTEND:20260226T223000Z
DTSTAMP:20260413T102611Z
LAST-MODIFIED:20260128T181424Z
LOCATION:4421 Sterling Hall
SUMMARY:Uncovering the Nature of Active Galactic Nuclei Accretion Disk
 s with Radiation Magnetohydrodynamic Simulations\, Machine Learning\, 
 and Laboratory Experiments\, Astronomy Colloquium\, Dr. Amy Secunda\, 
 Flatiron Institute/CCA
DESCRIPTION:Active galactic nuclei (AGN) accretion disks fuel powerful
  AGN feedback and are important laboratories for studying accretion ph
 ysics. Because AGN are generally too distant to resolve spatially\, mo
 st of what we can learn about their accretion disks comes from studyin
 g the variability in AGN light curves. However\, many mysteries remain
  about the source of variability in AGN light curves and what this var
 iability can reveal about the structure\, internal physics\, and accre
 tion rates of AGN disks. I will show how I use radiation magnetohydrod
 ynamic simulations\, long baseline AGN light curves\, and machine lear
 ning tools to improve our understanding of AGN variability and model t
 he structure of AGN disks. I will also briefly discuss my work using l
 aboratory experiments to understand accretion more broadly.
URL:https://www.physics.wisc.edu/events/?id=9573
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