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SUMMARY:Diffraction limited imaging in the visible on large ground-based t
 elescopes - Craig Mackay
DTSTART:20110608T121500Z
DTEND:20110608T124500Z
UID:TALK30411@talks.cam.ac.uk
CONTACT:Mark Gieles
DESCRIPTION:Lucky Imaging techniques are able routinely to deliver Hubble 
 resolution on Hubble size telescopes on the ground.  Diffraction limited i
 maging in the visible has already been demonstrated on a 5 m telescope by 
 combining Lucky Imaging with low order adaptive optics wavefront correctio
 n .  However traditional (Shack-Hartmann) adaptive optics wavefront sensor
 s require bright reference stars greatly limiting the applicability of the
  technique.  A new approach to building wavefront sensors will allow refer
 ence stars as faint as I=18.5 to be used on 8-10 m class telescopes to giv
 e angular resolutions in the visible of 15-20 milliarcseconds or 6-8 times
  that of Hubble.  A new instrument (AOLI) is now been developed initially 
 for use on the WHT 4.2 m telescope and also for the GTC 10.5 m telescope o
 n la Palma.  The development involves a consortium including the IAC (La L
 aguna)\, the ING\, Universities of Cartagena\, Cologne and Cambridge.
LOCATION:Sackler Lecture Theatre\, IoA
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