The absorption spectrum of atmospheric water vapor in the vicinity of the He 10830 Å triplet |
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Authors: | James B Breckinridge Donald N B Hall |
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Institution: | (1) Kitt Peak National Observatory, Tucson, Ariz., U.S.A. |
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Abstract: | Wavelengths of clean atmospheric water lines, and some solar lines, in the wavelength interval 10750 Å to 10900 Å have been measured to an accuracy approaching ± 1 mÅ. Strengths and wavelengths have been measured for all atmospheric water lines with absorption coefficients > 5 × 10–4 cm–1 gm–1 cm–2 at 280K, that lie within 15 Å of the He I 10830 Å featur of the stronger He component is affected by a weak water line which reduces atmospheric transmission by nearly 1 % with 10 mm precipitable water in the line of sight.Operated by the Association of Universities for Research in Astronomy, Inc., under contract with the National Science Foundation. |
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