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SUMMARY:Massive Planets (and Other Bodies) in Steady-State Accretion Disks
  - Prof. Yoram Lithwick (Northwestern)
DTSTART:20200310T130000Z
DTEND:20200310T140000Z
UID:TALK130189@talks.cam.ac.uk
CONTACT:Chris Hamilton
DESCRIPTION:We describe how massive planets (and binary stars and supermas
 sive black hole binaries)\n interact with viscous accretion disks.\nFor a 
 sufficiently massive planet (or binary star or SMBH binary)\,\nthe planet 
 acts as a leaky dam to the accreting material.\nWe quantify the strength\n
 of the dam as a function of planet mass\, and show how the pileup of mater
 ial\nbehind the dam could explain transitional disks.\nWe then investigate
  a massive planet's migration rate\, and explain\nwhy the old  paradigm (i
 .e.\, Type-II) was fundamentally flawed.  We also show that\nplanets more 
 massive than a few Jupiter masses (as well as binary stars and SMBH binari
 es) migrate outwards\nin viscous accretion disks\, a result which could ha
 ve a range of observational implications.
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
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