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Table 7

Examples of singlet (a) and multiplet (b) cross-matches between TOPbase and BRASS.

Ion λ (Å) Ei (eV) Ek (eV) Ji Jk Configuration Term loggf Δloggf
(a) O III 5291.416 39.156 41.508 0 1 3p–3d 1S–1P° − 0.326 − 0.033
O III 5268.301 38.907 41.260 0 1 2s22p(2P°)3p–2s22p(2P°)3d 1S–1P° − 0.359
(a) Mg I 4391.381 4.422 7.255 1 2 3p–6d 1P°1D − 0.583 0.000
Mg I 4351.906 4.346 7.194 1 2 3s3p–3s6d 1P°1D − 0.583
(a) Si I 6361.851 5.131 7.086 1 1 4s–5p 1P°1P − 2.712 0.895
Si I 6331.956 5.082 7.040 1 1 3s23p4s–3s23p5p 1P°1P − 1.817

(b) Al I 6752.439 3.110 4.952 1/2 5/2 4s–5p 2S–2P° − 1.396 0.003
Al I 6696.023 3.143 4.994 1/2 3/2 3s24s–3s25p 2S–2P° − 1.569
Al I 6698.673 3.143 4.993 1/2 1/2 3s24s–3s25p 2S–2P° − 1.870
(b) S II 5012.721 14.012 16.494 11/2 11/2 4s–4p 4P–4P° 0.614 0.007
S II 4924.110 13.618 16.135 3/2 5/2 3s23p2(3P)4s–3s23p2(3P)4p 4P–4P° − 0.059
S II 4925.343 13.584 16.101 1/2 3/2 3s23p2(3P)4s–3s23p2(3P)4p 4P–4P° − 0.235
S II 5009.567 13.618 16.092 3/2 1/2 3s23p2(3P)4s–3s23p2(3P)4p 4P–4P° − 0.094
S II 5032.434 13.672 16.135 5/2 5/2 3s23p2(3P)4s–3s23p2(3P)4p 4P–4P° 0.282
(b) Ca II 4300.578 7.459 10.352 5/2 1/2 5p–8s 2P°2S − 1.128 − 0.605
Ca II 4206.176 7.505 10.452 1/2 1/2 3p6(1S)5p–3p6(1S)8s 2P°2S − 2.210
Ca II 4220.071 7.515 10.452 3/2 1/2 3p6(1S)5p–3p6(1S)8s 2P°2S − 1.910

Notes. The first transition in each set of matches corresponds to the TOPbase singlet or multiplet transition and all subsequent transitions are fine structure transitions present in BRASS.

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