Andrew Collier Cameron University of St Andrews. Are we alone in the Universe? The plurality of worlds.
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Andrew Collier Cameron
University of St Andrews
Proto-planetary discs in the Orion Nebula (NASA/STScI)
& Didier Queloz
Numerical simulation by Pawel Artymowicz,
Left panel: Core accretion+migration simulation by Ida & Lin (2004), showing gas giants,ice giants,rocky planets.
Right panel: Radial-velocity discoveries so far.
Small planets ejected
Numerical simulation by Ken Rice,
University of St Andrews.
Only one planetary object remains after N-body evolution for 21 Myr.
aperture photometry, calibration/de-trending
Current Observing fields
Data processed so far
(stellar density plot)
(+ XO-2b, HAT-P-2b, HAT-P-3b, TrES-3, TrES-4, CoRoT-EXO-1b, Gl 436b since 2007 May 1)
~100 Doppler wobble planets
Courtesy Dave Bennett and
OGLE/PLANET/MOA team members
Spitzer/IRAC 4.5, 8.0 micron
Direct detection of infrared light from planet
-> effective temperature
TrES-1: Charbonneau et al. 2005
HD 209458: Deming et al. 2005
Tinetti et al 2007, Nature 448, 163
Time before present (billions of years)
NASA/JPL/University of Arizona