Science · 1995 · 129 citations · 19 references
Natural SciencesAstronomySolar AstronomySpectroscopic AnalysisSpectroscopyInfrared InstrumentationInfrared SpectroscopyOptical SpectroscopySolar PhysicsSolar RadiationSolar SpectroscopyEmission SpectraInfrared Emission SpectraRotation-vibration SpectraSolar Infrared SpectroscopySunspot SpectroscopySunspot UmbraeVibration-rotation CouplingWater Absorption
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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Detection of Water in Interstellar Regions by its Microwave Radiation
Alvin Cheung, D. M. Rank, C. H. Townes et al. · Nature · 1969 · 402 citations
Natural Sciences, Astronomy, Physics +10