Abstract

Many observations point out the great difference in metallicities determined from broad band colors of various wavelength regimes. Our new model of chemically consistent spectrophotometric evolutionary synthesis takes into account stellar evolutionary tracks and color calibrations dependent on metallicity with Z = 10-4… 2·10-2. For each of the different metallicities we include a big library of stellar spectra from 9·10-3μm to 160μm computed by Kurucz (1992). Thereby we can quantitatively calculate the luminosity weighted stellar metallicities L U to L K and analyse as a function of wavelength the luminosity contributions of stellar populations with different metallicities.

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