The Astrophysical Journal · 1973 · 27 citations · 0 references
Natural SciencesAstronomyPhysicsMolecular PhysicsSolar AstronomySpectroscopyFluorescence SpectroscopySolar SpectroscopyUltraviolet SpectroscopyExtreme Ultraviolet EmissionExtreme Ultraviolet Solar ObservationsHydrogen FuelHydrogen Fuel CellsHydrogen Fuel SystemsSolar Ultraviolet Radiation EffectsUltraviolet Absorption LinesUltraviolet Solar Radiation
The ultraviolet fluorescence spectrum of R2 excited by solar extreme-ultraviolet radiation was observed by the Apollo 17 Ultraviolet Spectrometer during a purge of the hydrogen fuel cells. Absorption of L and L in the nearly resonant (6, 0) and (11,0) Lyman bands completely accounts for the observed spectrum. Subject headings: molecules - spectra, ultraviolet