Solar identifications of Fe X-Fe XIV based on comparison with beam-foil, tokamak and laser-produced plasma spectra

Abstract

We report 42 new Fe X–Fe XIV lines identified from solar, beam-foil, tokamak and laser-produced plasma spectra. 19 of these have been found in solar spectra. We also report some new laboratory data confirming previous solar identifications. The lines are of |${3s}^{2}{3\text p}^{k}-{3\text s}^{2}{3\text p}^{k - 1}3\text d\enspace \text {and}\enspace {3\text s}^{2}{3\text p}^{k}-3\text s{3\text p}^{k + 1}$| types and lie between 169 and 510 Å. We also give a new value for the forbidden |${3\text p}^{3}(^{4}\text S_{3/2}-^{2}\text P_{1/2})$| transition of Fe XII. In all, we have determined 17 new energy levels in these ions with uncertainties of |$\pm 10 \text {cm}^{ - 1}$|⁠.