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December 21, 1997

On the problem of high spectral resolution observations of faint objects

V.E. Panchuk, I.D. Najdenov, V.G. Klochkova, A.B. Ivanchik, S.V. Yermakov, V.A. Murzin

December 8, 1997

Abstract:

Advantages are briefly discussed of gaining in spectral resolution, which is accompanied by losses in signal level, as compared with the attempts to improve the accuracy of measurement of line parameters by means of rising the S/N ratio alone with increasing the exposure time. To partially solve the problem of observations of faint objects at the BTA a new design echelle spectrometer is proposed. high resolution spectroscopy