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SUMMARY:The observable consequences of dynamos in black hole accretion dis
 ks  - Prof. Christopher Reynolds
DTSTART:20180219T140000Z
DTEND:20180219T150000Z
UID:TALK100015@talks.cam.ac.uk
CONTACT:Dr William Béthune
DESCRIPTION:Black hole accretion is well know to be mediated by MHD turbul
 ence. Many numerical studies of these systems also find evidence for dynam
 o action\, often seen as quasi-periodic buoyant expulsions of toroidal flu
 x from the disk plane.  Using a recent set of high-resolution numerical gl
 obal models\, I will show that the dynamo may be imprint itself on the gro
 ss aspects of the observed time variability and\, indeed\, it may be very 
 hard to gain an even qualitative understanding of the observations without
  understanding the dynamo in more depth. 
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
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