ABSTRACT

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ABSTRACT: Recent progress in model atmospheres for hot stars will be presented. A new generation of NLTE wind blanketed models, together with high S/N spectra of the hot star population in the central parsec which are being obtained will yield metal abundance determinations (Fe, Si, Mg, Na, etc). These results will provide major constraints not only on the theory of evolution of massive stars but also to solve the puzzle of the central parsecs of the Galaxy.