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SUMMARY:The Laplace Surface of a Circumplanetary Disk - Steve Lubow (Space
  Science Telescope Institute\, USA)
DTSTART:20241021T130000Z
DTEND:20241021T140000Z
UID:TALK222913@talks.cam.ac.uk
CONTACT:Loren E. Held
DESCRIPTION:The Laplace surface is the location of satellite orbits around
  a planet that do not\nundergo nodal precession. For a planet with some sp
 in and obliquity\, this\nwarped surface coincides with the equator of the 
 tilted planet close to the planet\nand coincides with the orbital plane of
  the planet well away from the planet. The orbits of\nregular satellites i
 n the solar system generally lie close to their Laplace surfaces.\nGordon 
 Ogilvie and I have been exploring the shape of the Laplace surface of a ci
 rcumplanetary\ndisk that has gas pressure.  We find that for typical param
 eters\, the\ncircumjovian Laplace surface is quite flat and differs consid
 erably\nfrom the classic Laplace surface that is based on satellite orbits
 . The results have\nimplications for how satellites evolved from their nat
 al circumplanetary disks.
LOCATION:MR14 DAMTP and online
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