Abundance analysis of the chemically peculiar star HD 74169 (A0IVp) .
2005
We present the results of the abundance analysis of the chemically peculiar star HD 74169 based on the echelle spectrum obtained with the spectrograph UVES. This high resolution and high signal-to-noise observations are compared with a synthetic spectrum computed with the SYNTHE code. As an input atmosphere model for SYNTHE we used an ATLAS 9 model with effective temperature Teff = 10000 K and surface gravity log g = 4.0 dex. The iterative procedure used to derive stellar individual abundances allows us to take into account even blended lines. The best fit to the observed spectral line profiles was obtained with a rotational velocity Ve sin i = 20 km s−1and turbulence Vturb = 2.1 km s−1. The average abundances of HD 74169 are typical for an Ap star of Cr type: C is deficient, Cr and Fe are strongly overabundant. The analyzed heavy and rare-earth elements are also overabundant.
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