Electron impact excitation of N III - Fine-structure collision strengths and Maxwellian-averaged rate coefficients

Astronomy and Astrophysics – Astronomy

Scientific paper

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Nitrogen Ions, Fine Structure, Atomic Spectra, Electron Impact, Solar Spectra, Stellar Spectra, Planetary Nebulae, Chebyshev Approximation, Tables (Data)

Scientific paper

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 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.

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