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SUMMARY:Accretion dIscs in not-so-compact binaries - Koji Mukai (Goddard S
 pace Flight Centre)
DTSTART:20180411T124500Z
DTEND:20180411T131500Z
UID:TALK102991@talks.cam.ac.uk
CONTACT:Dr Nick Bate
DESCRIPTION:The properties of accretion discs around white dwarfs are well
  studied in cataclysmic variables (CVs)\nwith orbital periods in the 1-10 
 hr range. Roche-geometry dictates that these discs have outer radii\nof le
 ss than about 1 million km.  Discs in symbiotic systems (red giant-white d
 warf binaries)\nare physically much larger\, up to AU scales\, but are muc
 h less well studied due to the glare of\nthe red giant. There are also int
 ermediate scale discs in CV-like systems with orbital periods in\nthe 1-5 
 day range. I will present selected observational results that illustrate t
 he differences among\ndiscs of different sizes\, and consider the possible
  implications of the disc size from the obvious\n(luminosity\, stored mass
 ) to the speculative (how disc instability manifests itself).
LOCATION:Sackler Lecture Theatre\, IoA
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