A%20Giant%20Planet%20Candidate%20near%20a%20Young%20Brown%20Dwarf

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• A Giant Planet Candidate near a Young Brown Dwarf
• Chauvin et al. (2004) AA in press

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• 136 extrasolar planets (Sep 2004)

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Dynamical Effects

• Star rotates around the system center-of-mass
• Detected through
• Doppler shift
• Astrometry
• Pulsar timing

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Doppler shift
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Astrometrey
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Microlensing
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OCCULTATION
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Direct imaging
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TW Hydrae Association

• Small group of isolated young stars
• In the solar neighborhood, nearest such group
• Age, 10 million years, when planet formation
  believed to occur
• Popular location to search for planets

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NACO

• NAOS - Nasmyth Adaptive Optics System
• CONICA - Near-Infrared Imager and Spectrograph
• Dichroic Reflected light to the WFS
  Efficiency Transmitted light to CONICA
  Efficiency Conditions of use
• N90C10 V,R,I,J,K (0.45 - 2.55 microns) 90 V,
  R, I, J, H, K (0.45 - 2.55 microns) 10 WF
  sensing and observing in the infrared