NOAO >   Observing Info >   Approved Programs >   2008B-0295

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Proposal Information for 2008B-0295


PI: Jian Ge, The University of Florida, jge@astro.ufl.edu
Address: Astronomy Department, 211 Bryant Space Science Center, Gainesville, FL 32611, U.S.A.

CoI: Scott W. Fleming, The University of Florida
CoI: Pencheng Guo, The University of Florida
CoI: Brian Lee, The University of Florida
CoI: Ji Wang, The University of Florida
CoI: Peng Jiang, The University of Florida
CoI: Suvrath Mahadevan, The University of Florida

Title: Exoplanet Tracker Major Upgrade and Instrument Performance Measurements

Abstract: We propose to have two T&E runs in September and October 2008 to have a major upgrade of the KPNO ET instrument hardware, implement a new instrument control system and measure its on-sky performance. We will replace the entire interferometer system, the fiber feeding system and calibration system with new ones. We will replace the instrument control system with a cloned system for the Multi-object APO Radial Velocity Exoplanet Large-area Survey (MARVELS). With these major upgrades, we expect to reach 1-2 m/s long-term Doppler precision. The early lab measurements show that two separated beams trace each other with a Doppler precision of ~0.7 m/s when the interferometer temperature was stabilized to within 0.01^\circC. This upgraded ET instrument will be used for following up many planet candidates to be identified from the MARVELS survey and for public access to high precision RV measurements.


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