Parent stars of extrasolar planets III: rho^1 CANCRI Revisited

Details Parent stars of extrasolar planets III: rho^1 CANCRI Revisited Parent stars of extrasolar planets III: rho^1 CANCRI Revisited

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...339l..29g&link_type=abstract

Astronomy and Astrophysics, v.339, p.L29-L32 (1998)

Astronomy and Astrophysics

Astrophysics

75

Stars: Abundances, Planetary Systems

Scientific paper

New values of the atmospheric parameters of rho () 1 Cnc are derived. From spectroscopic analysis of very high S/N, high resolution spectra, we obtain: T_eff = 5250 +/- 70 K, log g = 4.40 +/- 0.15 (cgs), xi_t = 0.80 +/- 0.09 km s(-1) , and [Fe/H] = 0.45 +/- 0.05. 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 log epsilon = 0.50 +/- 0.15. From an analysis of the CN bands near 8000 Angstroms, we set a lower limit on the (12) C/(13) C ratio of 30.

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