Fig. 1
Line-spread function for 10 stars of the MILES library chosen arbitrarily (actually 10 of the first 12), using the interpolated ELODIE spectra for reference. The top panel shows the residual shift of the spectra, illustrating the precision of the wavelength calibration and of the rest-frame reduction. The bottom panel presents the FWHM resolution. The mean formal error on each LSF point is 0.5 km s-1 on the residual shift and 0.025 Å on the FWHM resolution.
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