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ArticlesCopyright © 1995 by American Association for the Advancement of Science
Water on the sun
Kitt Peak National Observatory, National Optical Astronomy Observatories, Tucson, AZ 85726, USA.
High-resolution infrared spectra of sunspot umbrae have been recorded with the 1-meter Fourier transform spectrometer on Kitt Peak. The spectra contain a very large number of water absorption features originating on the sun. These lines have been assigned to the pure rotation and the vibration-rotation transitions of hot water by comparison with high-temperature laboratory emission spectra.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)