Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991kfnt....7...78v&link_type=abstract
Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 7, Jan.-Feb. 1991, p. 78-85. In Russian.
Astronomy and Astrophysics
Astronomy
Gratings (Spectra), Mirrors, Spectral Resolution, Spectrometers, Telescopes, Astronomical Photometry, Atmospheric Attenuation, Numerical Control, Spectral Bands
Scientific paper
A medium-resolution spectrometer for a 1.5-m telescope is described. In order to maximize the efficiency and wavelength coverage, the light is divided into two spectral regions by a dichroic filter behind the collimator. The first and second channels operate independently in the 300-780-nm and 760-1110-nm wavelength regions, respectively. The third photometric chanel is used to monitor atmospheric extinction. All the channels use photomultipliers in the pulse-counting regime; the diaphragm unit allows image scanning if an extended object is observed.
Gaisin S. M.
Lukichev A. G.
Mosina S. A.
Vdovichenko V. D.
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