Abstract
An atlas of high resolution (R = 60 000) CCD-spectra in the wavelength range 3500–5000 A is presented for four objects in metallicity range −3.0<[Fe/H]<−0.6, temperature range 4750<Teff<5900 K, and surface gravity range 1.6<lg g<5.0. We describe the calibration of the stellar atmospheric parameters using Alonso's formula based on the method of infrared flux and outline the determination of the abundances of a total number of 25 chemical elements. An analysis of the abundance determination errors for different chemical elements is carried out, and a method is provided for the observations and reduction of spectral material. Properties of the method of producing an atlas of spectra and line identifications are described.
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