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[39.04] Identifying Likely Planet-Bearing Stars with Low-Resolution Spectroscopy

S. Robinson, J. Strader, M. Ammons, G. Laughlin (UCO/Lick Observatory), D. Fischer (San Francisco State University)

The goal of the N2K collaboration is to identify the next 2000 closest, brightest metal-rich stars that are not on current target lists for radial velocity surveys aimed at detecting Hot Jupiters. Using the knowledge that stars with [Fe/H] > 0.2 have five times the probability of harboring detectable short-period planets as stars with Solar metallicity, we have developed a planet-search screening technique based on Lick/IDS indices in low-resolution spectra that measures stellar metallicity with a precision of ±0.08 dex. We present atmospheric parameters for ~1000 stars observed with the KPNO 2.1m telescope and discuss the efficiency of our ongoing low-resolution spectroscopic survey at identifying likely planet-bearing stars.

This work was supported by the NASA TPF Precursor Science Program and the NSF Graduate Research Fellowship program.

The author(s) of this abstract have provided an email address for comments about the abstract: ser@astro.ucsc.edu

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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.