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SUMMARY:GravityCam: detecting larger numbers of Earth size planets using g
 ravitational microlensing - Craig Mackay
DTSTART:20171011T124500Z
DTEND:20171011T131500Z
UID:TALK87981@talks.cam.ac.uk
CONTACT:Dr Giovanni Rosotti
DESCRIPTION:GravityCam is a new concept of ground-based imaging instrument
  capable of delivering significantly sharper images from the ground than i
 s normally possible without adaptive optics. Advances in optical and near 
 infrared imaging technologies allow images to be acquired at high speed wi
 thout significant noise penalty. Aligning these images before they are com
 bined can yield a 3-5 fold improvement in image resolution. By using array
 s of such detectors\, survey fields may be as wide as the telescope optics
  allows. We describe the instrument and detail its application to accelera
 te greatly the rate of detection of Earth size planets by gravitational mi
 crolensing.\n\nGravityCam will improve substantially the quality of weak s
 hear studies of dark matter distribution in distant clusters of galaxies. 
 An extensive microlensing survey will also provide a vast dataset for aste
 roseismology studies\, and GravityCam promises to generate a unique data s
 et on the population of the Kuiper belt and possibly the Oort cloud.
LOCATION:Sackler Lecture Theatre\, IoA
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