Electron Density Diagnostics for Gaseous Nebulae Involving the O IV Intercombination Lines near 1400 Angstrom
Feibelman, W. A.; Keenan, F. P.; Conlon, E. S.; Pradhan, A. K.; Bowden, D. A.
United Kingdom, United States
Abstract
The Bloom and Pradhan (1992) results on the excitation rates for transitions in O IV matrix are used to derive emission-line ratios near 1400 A, applicable to gaseous nebulae. The results are compared with the values measured from high-resolution spectra obtained by the IUE satellite.