NOAO >   Observing Info >   Approved Programs >   2007A-0551

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Proposal Information for 2007A-0551


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

CoI: Julian van Eyken, University of Florida
CoI: Suvrath Mahadevan, University of Florida
CoI: Scott Fleming, University of Florida
CoI: Pengcheng Guo, University of Florida
CoI: Justin Crepp, University of Florida
CoI: Mari Cruz Galvez, University of Florida

Title: Radial Velocity Follow-ups of Planet Candidates with the KPNO ET Instrument

Abstract: We propose to follow up 29 short period (P < 1 month) planet candidates around F, G and K stars with V=7.4-11.2 using the high throughput Exoplanet Tracker (ET) Doppler instrument at the KPNO 2.1m telescope. We will continue to support public users to use ET for their independent high precision RV measurements. All of these candidates show radial velocity variations with an amplitude less than 700 m/s within 15 days. 23 of the planet candidates around V=7.4-9 bright stars were identified during an earlier planet survey of a total of 150 F, G and K dwarfs and subdwarfs using the Coude Feed 0.9 m/2.1m telescopes and ET in Dec. 04 to Jul. 06. The 6 candidates around V=10.1-11.2 relatively faint stars were identified from a trial planet survey using the newly commissioned multi-object Keck ET instrument at the Sloan 2.5m telescope. Our goal is to detect 5-10 short period planets and 1 transiting planet over the next observation year. We will continue monitoring 2 known planets with intermediate period (P~200-300 days) and 2 RV stable stars to measure the instrument long term stability, preparing us to support future detection of long period planets at Kitt Peak.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2007A-0551

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