New project "TEDI"
Funded by the Nat. Science Foundation beginning Sept 05

EDI to go to Mt. Palomar 200 inch telescope to perform an interferometric
Doppler planet search in the near infrared for planets around cool stars

A collaboration between UC Berkeley - Cornell - LLNL

NSF awards AST-0504874 and AST-0505366

Photo of comet Hyakutake at Mt. Palomar by Don Bartletti, 12:30 am March 25, 1996.

In a three year project, an externally dispersed interferometer (EDI) constructed by Jerry Edelstein and David Erskine at UC Berkeley / LLNL will be placed in series with the "Triplespec" near infrared spectrograph already under construction by Terry Herter and James Lloyd of Cornell University. Hence the acronym TEDI. This new spectrograph will soon be placed in the Cassegrain focus of the 200 inch Mt. Palomar telescope. The interferometer will add fringes to the spectrum which will greatly increase the sensitivity to Doppler shifts caused by a planet tugging on the star. The infrared (0.8 - 2.5 micron) sensitivity of Triplespec will allow detections of planets around small cool stars that emit too little visible light to be included in current Doppler searches.


SPIE proceedings describing TEDI project [Ref. 9]

Team TEDI page

First light! of TEDI at Mt. Palomar, photos, Jan 2008



             Contact info:
Jerry Edelstein      jerrye@ssl.berkeley.edu  
David Erskine         erskine1@llnl.gov
James Lloyd          jpl@astro.cornell.edu  
Terry Herter         herter@astro.cornell.edu

www.SpectralFringe.org site maintained by
David Erskine
erskine1@llnl.gov

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