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SUMMARY: Aspects of Dust and Planets in Discs - Colin McNally (Queen Mary)
DTSTART:20170130T160000Z
DTEND:20170130T170000Z
UID:TALK69571@talks.cam.ac.uk
CONTACT:Jean Teyssandier
DESCRIPTION:Recent work has shown that accretion heating in the inner regi
 ons of protoplanetary disks can lead to a particle trap\, driven by a modi
 fication of the drag force due to temperature gradients referred to as ‘
 photophoresis’. I will discuss this and the underlying aspects of diffus
 e gas aerodynamics of solid particles in application to protoplanetary dis
 ks. These models also highlight several areas where the state of the art c
 ould be significantly improved. I will then present preliminary work on lo
 w mass planet migration torques in non-ideal MHD disc models\, were result
 s suggest the torques in the ‘dead-zone’ may still be significantly mo
 dified by magnetic fields\, even when the magnetic diffusivity is very lar
 ge.
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
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