Identifying Likely Planet-Bearing Stars with Low-Resolution Spectroscopy

Details Identifying Likely Planet-Bearing Stars with Low-Resolution Spectroscopy Identifying Likely Planet-Bearing Stars with Low-Resolution Spectroscopy

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.3904r&link_type=abstract

American Astronomical Society Meeting 205, #39.04; Bulletin of the American Astronomical Society, Vol. 36, p.1406

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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.

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