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Table 2

Examples of cross-matched transitions for which the electronic configurations are inconsistently reported.

Ion λ (Å) Ei (eV) Ek (eV) Ji Jk Configuration: lower–upper References
(a) Fe I 4200.087 3.884 6.835 3 3 3p63d6(5D)4s4p(3P°) z3D°–3p63d7(4F)4d f3F K07a
Fe I 4200.087 3.884 6.835 3 3 3d6(5D)4s4p(3P°) z3D°–3d7(4F)4d f3F K14a
(b) W I 4200.028 2.037 4.988 4 4 5d46s2 a3G–° CBb
W I 4200.020 2.037 4.988 4 4 5d46s2 3G–° L153c
(c) Ca II 4206.176 7.505 10.452 1/2 1/2 3p6(1S)5p 2P°–3p6(1S)8s 2S K99a
Ca II 4206.180 7.505 10.452 1/2 1/2 3p65p 2P°–3p68s 2S L7323d
(d) Fe I 4202.335 2.588 5.538 3 2 3p63d64s2 b3F–3p63d6(a3F)4s4p(3P°) v5D° K07a
Fe I 4202.330 2.588 5.538 3 2 3d64s2 b3F2–3d6(3F2)4s4p(3P°) v5D° L11631e

Notes. (a)–(d) show four pairs of transitions, each pair has one or more differences in configuration notation, (a) difference in sub-shells, (b) difference in term notation, (c) difference in term positions within configuration, and (d) shows differences in seniority of term and differences in sub-shell.

References. (a) Kurucz (1999–2014), (b) Corliss & Bozman (1962), (c) Kramida & Shirai (2006), (d) Sugar & Corliss (1985), and (e) Nave & Johansson (2013).

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