The Metallicity dependence of the Cepheid Period-Luminosity relation: methodology and results
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We present the results of an observational campaign undertaken to assess the influence of the iron content on the Cepheid Period-Luminosity relation. Our data indicate that this dependence is not well represented by a simple linear relation. Rather, the behaviour is markedly non monotonic, with the correction peaking at about solar metallicity and declining for higher and lower values of [Fe/H].
2 pages, 1 figure, to appear in the proceedings of the ESO-Arcetri workshop "Chemical Abundances and Mixing in Stars in the Milky Way and its satellites", 13-17 September, Castiglione della Pescaia, Italy
2 pages, 1 figure, to appear in the proceedings of the ESO-Arcetri workshop "Chemical Abundances and Mixing in Stars in the Milky Way and its satellites", 13-17 September, Castiglione della Pescaia, Italy