The Astrophysical Journal · 1997 · 34 citations · 22 references
Natural SciencesAstronomyPhysicsAstrophysicsPlasma PhysicsSpectroscopyAstrophysical PlasmasEmission SpectroscopyElectron Excitation ProcessesElectron-impact ExcitationEmission Line SpectroscopyLine Emission SpectraNebular Electron DensityOptical Absorption SpectraOptical Emission SpectraPlanetary Nebulae
Recent R-matrix calculations of electron impact excitation rates in Ar IV are used to calculate the emission-line ratio : ratio diagrams and where (R
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Interstellar extinction in the UV
M. J. Seaton · Monthly Notices of the Royal Astronomical Society · 1979 · 998 citations
Natural Sciences, Astronomy, Physics +13