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SUMMARY:The K2 Satellite: Planets\, Stars and Systematics - David Armstron
 g (Warwick)
DTSTART:20160608T150000Z
DTEND:20160608T160000Z
UID:TALK65071@talks.cam.ac.uk
CONTACT:Dr B.-O. Demory
DESCRIPTION:K2 is the repurposed Kepler satellite\, and has been active fo
 r nearly 2 years. In this time\, it has surveyed many more bright stars th
 an were available in the additional mission\, and discovered some 200 plan
 et candidates. ~100 of these have been confirmed or validated\, including 
 a range of unusual and exciting systems\, many of which are amenable to fu
 rther study. These include planetary systems with strong TTVs\, new bright
  Neptune mass planets and even the first detection of planetesimals orbiti
 ng a white dwarf. I will introduce the mission and its discoveries\, then 
 describe some of the work being performed at Warwick to find both new plan
 ets and variable stars in the data. This involved the development of novel
  machine learning techniques\, in particular Self-Organising Maps and Rand
 om Forests. Their use has applications not only to the classification of v
 ariable stars but also to the selection and prioritisation of transiting p
 lanetary candidates.
LOCATION:Martin Ryle Seminar Room\, Kavli Institute
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