BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-1688
DTSTART:20091117T213000Z
DTEND:20091117T230000Z
DTSTAMP:20260506T172215Z
LAST-MODIFIED:20091111T140957Z
LOCATION:3425 Sterling Hall
SUMMARY:The subtle Physics of Black Hole Accrection"\, Astronomy Collo
 quium\, Chris Reynolds\, University of Maryland
DESCRIPTION:For almost the past 20 years\, the paradigm for black hole
  accretion has highlighted the central role of magnetohydrodynamic (MH
 D) turbulence. However\, only in recent years have high-resolution sim
 ulations started to explore the subtle nature of MHD turbulent disks. 
 I will discuss results from a series of simulations focusing on geomet
 rically-thin accretion disks. I shall focus on the dynamics of the dis
 k and the transition to the plunging flow close to the black hole\, an
 d explain why the low density "corona" of the disk plays a previously 
 unrecognized and important role in shaping the dynamics of the disk. I
  shall also present a study of the temporal properties of the accretio
 n flow. I shall end by connecting this theoretical work with a new XMM
 -Newton observation of the Seyfert galaxy 1H0707-495.<br>
\n
URL:https://www.physics.wisc.edu/events/?id=1688
END:VEVENT
END:VCALENDAR