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Astron. Astrophys. 339, L29-L32 (1998)

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Letter to the Editor

Parent stars of extrasolar planets III: [FORMULA] 1 Cancri Revisited

Guillermo Gonzalez 1 and Andrew D. Vanture 1, 2

1 Astronomy Department, University of Washington, Box 351580, Seattle, WA 98195, USA
2 Science Division, Everett Community College, 801 Wetmore Ave., Everett, WA 98201, USA

Received 31 August 1998 / Accepted 21 September 1998


New values of the atmospheric parameters of [FORMULA] Cnc are derived. From spectroscopic analysis of very high S/N, high resolution spectra, we obtain: [FORMULA] K, [FORMULA] (cgs), [FORMULA] km s-1, and [Fe/H] [FORMULA]. This temperature estimate is consistent with other recent determinations by Gonzalez and Fuhrmann et al.

We have also derived CNO abundances and set a new upper limit on the lithium abundance of [FORMULA]. From an analysis of the CN bands near 8000 Å, we set a lower limit on the 12C/13C ratio of 30.

Key words: stars: abundances – planetary systems

Send offprint requests to: G. Gonzalez (e-mail: gonzalez@astro.washington.edu)

© European Southern Observatory (ESO) 1998

Online publication: September 30, 1998