Abstract
Predicted allowed and forbidden EUV line intensities of Fe xv and Ni xvii are presented in explicit graphical form, clarifying and extending the earlier treatment of Bely and Blaha (1968). In the case of the former ion a detailed comparison with available observations leads to questioning or rejection of some presently accepted line identifications (323.57 Å, 317.61 Å), and on the other hand suggests that a quiet Sun line at 304.853 Å is due to Fe xv. For the little known ion Ni xvii estimates of level structure and line wavelengths are given and a preliminary comparison is made with recent flare observations.
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Bhatia, A.K., Kastner, S.O. The coronal spectra of Fe xv and Ni xvii . Sol Phys 65, 181–196 (1980). https://doi.org/10.1007/BF00151392
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DOI: https://doi.org/10.1007/BF00151392