Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pbeio..22..107c&link_type=abstract
Publications of the Beijing Astronomical Observatory, No. 22, p. 107 - 112
Astronomy and Astrophysics
Astronomy
Spectrometers: Radial Velocities
Scientific paper
This paper introduces a mask which is the key component of the radial-velocity spectrometer at the 85 cm reflector of Beijing Observatory. Its total transparency is equal to 19 percent. The mask is made on a chromium-coated flat glate plate. This paper gives the transparency of the glass plate and shows the picture of the mask, the maximum curve of the hallow cathode lamp and the minimum curves of the sky light and two stars.
Cao, Du, Bai Gao, Linzhgu, Uang Linzhgu Uang
Pyu
Wang Xihe
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