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Electron impact excitation of N iii: fine-structure collision strengths and Maxwellian-averaged rate coefficients
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1994
Year
EngineeringAstrostatisticsElectron DiffractionCollision StrengthsRate CoefficientsElectron PhysicElectron SpectroscopyNumerical SimulationElectron Impact ExcitationAstrophysical SimulationPhysicsAtomic PhysicsProtoplanetary DiskAstroinformaticsAstrophysicsFine-structure Collision StrengthsNatural SciencesStellar StructureApplied PhysicsN Iii
The R-matrix method is used to calculate collision strengths and Maxwellian-averaged rate coefficients for some fine-structure transitions in N iii. Analytic fits are given for the rate coefficients for the range of temperatures |$5000-200\ 000\ {\rm K}$|, so that they may be readily applied to solar/late-type star and planetary nebula investigations. The present data have significant differences from earlier calculations.