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DTSTAMP:20260413T085228
DTSTART:20160414T113000
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URL:https://murmitoyen.com/events/vanille/udem/detail/640384-a-new-look-at-
 agn-accretion-discs-and-black-hole-spin-daniel-capellupo-mcgill-university
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:A New Look at AGN Accretion Discs and Black Hole Spin - Daniel Cape
 llupo (McGill University)
DESCRIPTION:A New Look at AGN Accretion Discs and Black Hole Spin - Daniel
  Capellupo (McGill University)
\nAt the center of every active galactic nu
 cleus (AGN) is a supermassive accreting black hole (BH). The physics of ac
 tive BHs is governed by three key parameters: their mass\, spin\, and accr
 etion rate. We therefore observe a sample of z ~ 1.5 AGN\, selected to cov
 er a wide range in BH mass and accretion rate\, with X-shooter on the VLT.
  Using this unique dataset\, we test models of AGN accretion discs and fin
 d that most of the observed spectral energy distributions (SEDs) can be ex
 plained by thin accretion disc theory. With these models\, we derive const
 raints on the spin of the BHs. Such constraints have thus far been limited
  to AGN at much lower redshift\, and our results are consistent with the '
 spin-up' model of BH evolution.
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