Spectroscopic parameters for 451 stars in the HARPS GTO planet search program: Stellar [Fe∕H] and the frequency of exo-Neptunes
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author: Eric Stempels Didier Queloz Luca Casagrande S. G. Sousa Francesco Pepe Stéphane Udry Nuno C. Santos Michel Mayor Manuel Monteiro |
| Publication date | 2009 |
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