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SUMMARY:Dynamics of warped discs - Dr. Christopher Nixon (Leicester)
DTSTART:20180521T130000Z
DTEND:20180521T140000Z
UID:TALK104839@talks.cam.ac.uk
CONTACT:Dr William Béthune
DESCRIPTION:Astrophysical discs are often warped\, that is\, their orbital
  planes change with radius. Discs can be warped by e.g. Lense-Thirring pre
 cession induced by a misaligned spinning black hole\, or the gravitational
  pull of a misaligned companion. I will discuss the dynamics of warped dis
 cs\, provide my thoughts on the role of `viscosity' in their evolution\, a
 nd present simulations of tilt oscillations\, Kozai-Lidov oscillations and
  disc tearing. Finally I will present the results of a stability analysis 
 of the warped disc equations to derive the criteria for the warp to be uns
 table and the disc to separate into distinct planes.
LOCATION:MR15\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
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