Effective collision strengths for excitation and de-excitation of nebular [O III] optical and infrared lines with kappa distributed electron energies

Abstract

We present effective collision strengths for electron excitation and de-excitation of the ten forbidden transitions between the five lowest energy levels of the astronomically abundant doubly-ionised oxygen ion, O^{2+}. The raw collision strength data were obtained from an R-matrix intermediate coupling calculation using the Breit-Pauli relativistic approximation published previously by the authors. The effective collision strengths were calculated with kappa-distributed electron energies and are tabulated as a function of the electron temperature and kappa.

arXiv comment7 pages, 4 figures, 4 tables

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Cited by in corpus (8)

• Recombination coefficients for O II lines in nebular conditions
• Very Large Telescope deep echelle spectroscopy of Galactic planetary nebulae NGC 6153, M 1-42 and Hf 2-2
• R-matrix electron-impact excitation data for the C-like iso-electronic sequence
• SOFIA FIFI-LS Observations of Sgr B1: Ionization Structure and Sources of Excitation
• On the non-thermal kappa-distributed electrons in planetary nebulae and HII regions: the kappa index and its correlations with other nebular properties
• Physical and chemical properties of Wolf-Rayet planetary nebulae
• Can the Kappa-distributed electron energies account for the intensity ratios of O II lines in photoionized gaseous nebulae?
• Multi-diagnostic convergence: a single measurement in weakly collisional plasmas