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SUMMARY:Portraits of other worlds on a red background: Characterising tran
 siting exoplanets in the presence of stellar activity and correlated noise
  - Suzanne Aigrain (Oxford)
DTSTART:20120614T153000Z
DTEND:20120614T163000Z
UID:TALK36622@talks.cam.ac.uk
CONTACT:Mark Gieles
DESCRIPTION:Transiting exoplanets are extremely valuable because the trans
 it geometry enables very detailed physical characterisation of the planets
  and host stars. However\, the planetary signals of interest are often dwa
 rfed by the host star's intrinsic variability and by instrumental effects\
 , both of which are stochastic and usually have a "red" power spectrum. In
  my talk I will introduce novel statistical methods imported from the mach
 ine learning literature\, which enable us to learn the properties of the n
 oise from the data. I will describe two applications: Hubble Space Telesco
 pe transmission spectroscopy of hot Jupiters and characterisation of stell
 ar variability in Kepler data.
LOCATION:Sackler Lecture Theatre\, IoA (tea at 4:00 pm)
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