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SUMMARY:Probing Planetary Formation at the Angular Resolution Frontier - M
 ike Ireland (ANU)
DTSTART:20141203T143000Z
DTEND:20141203T153000Z
UID:TALK56253@talks.cam.ac.uk
CONTACT:Dr B.-O. Demory
DESCRIPTION:Direct detection of the infrared radiation from exoplanets and
  their environment falls in an angular resolution niche: solar system scal
 es for both typical Kepler targets and the nearest star forming regions fa
 lls right at the diffraction-limit of the world’s largest telescopes. I 
 will outline techniques of kernel-phase and aperture-mask interferometry t
 hat are currently the world-leaders in infrared imaging at the diffraction
 -limit for typical Strehl ratios\, and will show how they can be used to d
 etermine which environments are most suitable for planetary formation from
  terrestrial through to giant planet sizes. By following-up Kepler “obje
 ct of interests” at high angular resolution\, I will show that multiple 
 star formation at solar-system scales strongly suppresses terrestrial plan
 et formation\, with the curious exception of stellar twins. At the younges
 t ages\, I will show how radiation from planetary systems in the process o
 f formation can be directly imaged\, focusing on multi-epoch monitoring of
  the resolved emission seen within the disk gap of LkCa 15. Based on new d
 ata between 1.5 and 5 microns\, I will present a model for the central sou
 rce as thermal emission powered by the formation of one or several exoplan
 ets.  
LOCATION:Martin Ryle Seminar Room\, Kavli Institute
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