Astronomy & Astrophysics Supplement Series · 1993 · 45 citations · 0 references
Natural SciencesAstronomyPhysicsAstrophysicsSolar AstronomySpectroscopySolar PhysicsSolar ProminencesSolar SpectroscopySpectral Line AstronomyHydrogen Atom SpectrumHydrogen Line DiagnosticsPartial Frequency RedistributionProminence SpectroscopySolar Prominence Models
The emission of hydrogen lines and continua from solar prominences is investigated using a set of 140 simple models, covering the range of physical conditions usually assumed for these objects. These models are plane-parallel, isobaric and isothermal. The computations have been carried out using a 20 level plus continuum hydrogen atom, and taking into account the effects of partial frequency redistribution in the Lyman-α and β lines. The aim of these computations is twofold: Firstly, to describe the variations of hydrogen lines and continua emitted by prominences when physical conditions vary. Secondly, to provide observers with some diagnostic tool to interpret data such as intensity ratios, line widths, etc.