NOAO >   Observing Info >   Approved Programs >   2007B-0420

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Proposal Information for 2007B-0420


PI: Jian Ge, Univ. of Florida, jge@astro.ufl.edu
Address: Astronomy Department, 211 Bryant Space Science Center, P.O. Box 112055, Gainesville, FL 32611-2055

CoI: Brian Lee, Univ. of Florida
CoI: Julian van Eyken, Univ. of Florida
CoI: Scott Fleming, Univ. of Florida
CoI: Pengcheng Guo, Univ. of Florida
CoI: Justin Crepp, Univ. of Florida
CoI: Ji Wang, Univ. of Florida

Title: Radial Velocity Follow-ups of Potential Planet Candidates in the SDSS Planet Survey

Abstract: We propose to follow up 36 potential short period (P < 1 month) planet candidates around F, G and K dwarfs and subdwarfs with V=8.5- 11.5 using the Exoplanet Tracker (ET) Doppler instrument at the KPNO 2.1m telescope (for 25 V<11.2 stars) and HRS on the HET telescope (for 11 V=11.2-11.5 stars). All of these candidates show radial velocity (RV) variations with an amplitude less than 1000 m/s within 15 days. All of the candidates were identified from a total of 750 survey stars from the on-going pilot planet survey using a multi-object instrument, Keck ET, at the 2.5m Sloan Digital Sky survey (SDSS) telescope from May 2006 to March 2007. Our goal is to confirm and characterize ~6 short period planets and ~1 transit planet over the next observation semester. The combination of the multi-object RV planet survey with single object instrument follow-ups will potentially increase the RV planet detection speed by an order of magnitude over current single object RV planet surveys. With a much larger target star sample (~40,000 stars) from the SDSS pilot survey plus its following full-scale planet survey in 2008-2014, we can study exoplanets in a diverse set of host stars (e.g., composition, evolutionary state) and discover rare systems that are poorly represented in smaller surveys.


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



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