Atmospheric Abundances of Light Elements in the F-Type Star Procyon

Details Atmospheric Abundances of Light Elements in the F-Type Star Procyon Atmospheric Abundances of Light Elements in the F-Type Star Procyon

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasj...48..601k&link_type=abstract

Publications of the Astronomical Society of Japan, v.48, p.601-606.

Astronomy and Astrophysics

Astronomy

9

Stars: Abundances, Stars: Atmospheres, Stars: Invidual (Procyon)

Scientific paper

High-dispersion spectra in the near-infrared region of the F-type star Procyon (alpha CMi, F5 IV--V) were obtained and the absorption lines of eight light elements, including phosphorus P and potassium K were analyzed with ATLAS9 model atmospheres. The LTE abundance was found to be solar for N, Mg, Al, Si, and P, which is consistent with previous studies in the visible region. However, two CI lines, triplet lines of OI at lambda 7771--5 Angstroms, and the resonance line of KI at lambda 7699 Angstroms are fairly strong; their estimated LTE abundances are greater than the solar values by more than 0.2 dex. These discrepancies are discussed in terms of non-LTE line formation.

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