Abstract

We present a new library of synthetic spectra based on the stellar atmosphere code PHOENIX. It covers the wavelength range from 500Å to 55 000Å with a resolution of R=500000 in the optical and near IR, R=100 000 in the IR and Δλ =0.1Å in the UV. The parameter space covers 2300K ≤ T_eff ≤ 8000K, 0.0 ≤ log(g) ≤ +6.0, -4.0 ≤ [Fe=H] ≤ +1.0 and -0.3 ≤ [α/Fe] ≤ +0.8. The library is work-in-progress and going to be extended to at least T_eff = 25000K. We use a new self-consistent way of describing the microturbulence for our model atmospheres. The entire library of synthetic spectra will be available for download. Furthermore we present a method for fitting spectra, especially designed to work with the new 2nd generation VLT instrument MUSE. We show that we can determine stellar parameters (T_eff, log(g), [Fe/H] and [α/Fe]) and even single element abundances.