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J.J. Drake and J.M. Laming
We present a review of the status of current knowledge of the atmospheric parameters and elemental abundances of the nearby F5 IV star Procyon. Based on the available evidence, our adopted values for these quantities are
Effective temperature, T_eff = 6650 +/- 100 K Surface gravity, log g = 4.0 +/- 0.1 Microturbulence, xi = 2.0 +/- 0.2 km/s Metallicity, [M/H] = 0.0 +/- 0.1
There is no evidence for deviation of any of Procyon's photospheric element abundance from the solar photospheric mixture. Procyon's coronal abundances appear to be identical to the photospheric abundances; unlike the Sun, Procyon does not appear to exhibit a "FIP effect".
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