The Astrophysical Journal · 1964 · 11 citations · 0 references
Natural SciencesAstronomyOptical AstronomySolar AstronomyUltraviolet AstronomySolar Active RegionsSolar ChromosphereSolar ObservationsSolar PhysicsSolar RadiationSolar SpectroscopyChromospheric Emission LinesLine Intensity AnalysisPhotoelectric EffectSolar Absorption LinesSolar Emission LinesSolar Physics ObservationsSolar Spectral Line Profiles
New, improved photoelectric observations of the mean solar Ha-line profile confirm the earlier observations reported by White (1962). The new measurement of the central line intensity at the center of the solar disk is 0.155 + 0.002 of the reference continuum.