Spectrum interpolator for the ELODIE library

We present a service, registered in the Virtual Observatory, to produce spectra at any desired effective temperature, surface gravity and metallicity using a library of spectra observed with the ELODIE spectrograph. This interpolator is noticeably used to generate grids for stellar population synthesis with the PEGASE.HR code Le Borgne et al. (2004). It can also be used to determine the atmospheric parameters of stars.