NOAO >   Observing Info >   Approved Programs >   2006A-0478

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Proposal Information for 2006A-0478


PI: John Gizis, University of Delaware, gizis@udel.edu
Address: Physics Department, 223 Sharp Lab, Newark, DE 19716, USA

CoI: Basmah Riaz, University of Delaware
CoI: John Shaw, University of Delaware

Title: Parallaxes of Three Young Brown Dwarfs and a Planet

Abstract: We propose to use the CTIO 0.9m telescope and CCD camera to measure the parallaxes of the three young brown dwarfs in the TW Hya Association. The Association has significant depth and thus we cannot assume that all members have the same distance (55 pc) as TW Hya itself. We need distances be able to reliably place these objects on the H-R diagram. Since 2M1207 is known to have a planetary mass companion, we would also obtain a distance to a five jupiter mass, 10 million year old planet. This 2M1207B is observable, this is will enable strong tests of planetary models.


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NOAO >   Observing Info >   Approved Programs >   2006A-0478

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