SPADES: a Stellar PArameters DEtermination Software
  With the large amounts of spectroscopic data available today and the very
large surveys to come (e.g. Gaia), the need for automatic data analysis
software is unquestionable. We thus developed an automatic spectra analysis
program for the determination of stellar parameters: radial velocity, effective
temperature, surface gravity, micro-turbulence, metallicity and the elemental
abundances of the elements present in the spectral range. Target stars for this
software should include all types of stars. The analysis method relies on a
line by line comparison of the spectrum of a target star to a library of
synthetic spectra. The idea is built on the experience acquired in developing
the TGMET (Katz et al. 1998 and Soubiran et al. 2003) ETOILE (Katz 2001) and
Abbo (Bonifacio & Caffau 2003) softwares. The method is presented and the
performances are illustrated with GIRAFFE-like simulated spectra with high
resolution (R = 25000), with high and low signal to noise ratios (down to SNR=
30). These spectra should be close to what could be targeted by the Gaia-ESO
Survey (GCDS).
