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Observed Energy Distribution of α Lyra and β Cen at 2000–3800 Å


THE space astrophysical observatory Orion, installed in the orbital station Salyut, has provided several slitless spectrograms of α Lyra and β Cen between wavelengths 2000 and 3800 Å. The spectrograms were obtained in June 1971 with the help of a mirror telescope of the Mersenn system and a spectrograph of the Wadsworth system using film sensitive in the far ultraviolet. The dispersion of the spectrograph is 32 Å/mm, while the resolution of the spectrograms derived is about 5 Å on 2600 Å. A detailed description of the Orion apparatus and the method of obtaining the spectrograms have been given elsewhere1–3.


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GURZADYAN, G., OHANESYAN, J. Observed Energy Distribution of α Lyra and β Cen at 2000–3800 Å. Nature 239, 90 (1972).

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