Table 2: The details of the most important configurations in Fe XXIII (only the most significant n=4 levels are shown; the full Table is available in electronic form). The percentage of level mixing (>10%) is indicated in second column. $E_{\rm best}$ indicates the best energies (cm-1) which we propose in this work. The uncertainties in the energies reflect the estimated errors in the wavelength measurements. Levels with uncertain identification are assigned an uncertainty of 5000 cm-1, an estimate based on the comparisons between the observed energies and the values computed ab initio. The other columns indicate the differences between our $E_{\rm best}$ and the energies from NIST $E_{\rm NIST}$, the collisional calculations $E_{\rm CC}$, and the adjusted SS values $E_{\rm SS}$. Levels are ordered according to the energies $E_{\rm CC}$ from the scattering calculations.

i		 Configuration (% purity) Term $E_{\rm best}$ $E_{\rm best}{-}E_{\rm NIST}$ $E_{\rm best}{-}E_{\rm CC}$ $E_{\rm best}{-}E_{\rm SS}$

1		 2s2(95%) 1S $_{0}^{\rm e}$ 0.0 $\pm $ 0 0 +0 0
2 2s 2p(99%) 3P $_{0}^{\rm o}$ 348 100.0 $\pm $ 800 -80 +2393 +230
3 2s 2p(97%) 3P $_{1}^{\rm o}$ 379 125.0 $\pm $ 10 -5 +1432 +164
4 2s 2p(99%) 3P $_{2}^{\rm o}$ 471 768.0 $\pm $ 10 -12 +2647 -146

5

 2s 2p(97%) 1P $_{1}^{\rm o}$ 752 410.0 $\pm $ 100 -430 -4029 -157
6 2p2(93%) 3P $_{0}^{\rm e}$ 956 100.0 $\pm $ 500 0 +2129 +836
7 2p2(99%) 3P $_{1}^{\rm e}$ 1 027 200.0 $\pm $ 500 0 +4005 +787
8 2p2(73%) $+9(26\%)$ 3P $_{2}^{\rm e}$ 1 071 700.0 $\pm $ 500 0 +31 +306
9 2p2(73%) $+8(26\%)$ 1D $_{2}^{\rm e}$ 1 204 200.0 $\pm $ 500 0 -936 -975
10 2p2(89%) 1S $_{0}^{\rm e}$ 1 422 600.0 $\pm $ 800 -400 -4489 -346
11 2s 3s(98%) 3S $_{1}^{\rm e}$ 8 913 200.0 $\pm $ 2000 19 200 -6191 -3
12 2s 3s(97%) 1S $_{0}^{\rm e}$ 8 975 300.0 $\pm $ 1000 - -15 841 -7
13 2s 3p(62%) $+15(33\%)$ 3P $_{1}^{\rm o}$ 9 076 060.0 $\pm $ 1000 60 -9648 +688
14 2s 3p(98%) 3P $_{0}^{\rm o}$ 9 075 227.0 $\pm $ 5000 - -10 572 0
15 2s 3p(57%) +13(35%) 1P $_{1}^{\rm o}$ 9 107 500.0 $\pm $ 1000 500 -8552 -128
16 2s 3p(98%) 3P $_{2}^{\rm o}$ 9 112 000.0 $\pm $ 2000 - -7424 +450
17 2s 3d(97%) 3D $_{1}^{\rm e}$ 9 198 400.0 $\pm $ 2000 -600 -10 950 +1031
18 2s 3d(98%) 3D $_{2}^{\rm e}$ 9 200 000.0 $\pm $ 3000 -9000 -14 241 -2453
19 2s 3d(99%) 3D $_{3}^{\rm e}$ 9 211 300.0 $\pm $ 2000 -700 -10 669 +695
20 2s 3d(97%) 1D $_{2}^{\rm e}$ 9 272 500.0 $\pm $ 2000 -500 -13 635 -28
21 2p 3s(98%) 3P $_{0}^{\rm o}$ 9 348 070.0 $\pm $ 5000 53 070 -10 861 0
22 2p 3s(82%) $+25(13\%)$ 3P $_{1}^{\rm o}$ 9 365 642.0 $\pm $ 5000 - -11 236 0
23 2p 3p(67%) $+27(28\%)$ 3D $_{1}^{\rm e}$ 9 458 199.0 $\pm $ 5000 3199 -8828 0
24 2p 3s(98%) 3P $_{2}^{\rm o}$ 9 476 500.0 $\pm $ 3000 - -3051 +3874
25 2p 3s(77%) $+22(16\%)$ 1P $_{1}^{\rm o}$ 9 518 800.0 $\pm $ 3000 48 800 -8653 -85
26 2p 3p(83%) 3D $_{2}^{\rm e}$ 9 524 000.0 $\pm $ 1000 0 -8026 -465
27 2p 3p(27%) $+23(19\%)$ +30(25%) +33(26%) 1P $_{1}^{\rm e}$ 9 525 633.0 $\pm $ 5000 - -7578 0
28 2p 3p(88%) $+44(10\%)$ 3P $_{0}^{\rm e}$ 9 544 996.0 $\pm $ 5000 - -11 834 0
29 2p 3d(77%) $+39(19\%)$ 3F $_{2}^{\rm o}$ 9 583 144.0 $\pm $ 5000 - -7710 0
30 2p 3p(46%) $+23(11\%)$ $+27(36\%)$ 3P $_{1}^{\rm e}$ 9 615 925.0 $\pm $ 5000 - -5665 0
31 2p 3p(99%) 3D $_{3}^{\rm e}$ 9 623 400.0 $\pm $ 1000 -600 -3804 +293
32 2p 3d(78%) $+40(13\%)$ 3F $_{3}^{\rm o}$ 9 624 600.0 $\pm $ 1000 -400 -9504 -2112
33 2p 3p(64%) $+30(27\%)$ 3S $_{1}^{\rm e}$ 9 640 640.0 $\pm $ 5000 - -5515 0
34 2p 3d(27%) $+39(33\%)$ +41(30%) 3D $_{2}^{\rm o}$ 9 637 500.0 $\pm $ 3000 -500 -9234 -2177
35 2p 3p(62%) $+26(14\%)$ +37(22%) 3P $_{2}^{\rm e}$ 9 643 700.0 $\pm $ 2000 -300 -6343 +463
36 2p 3d(69%) $+42(16\%)$ +46(13%) 3D $_{1}^{\rm o}$ 9 663 000.0 $\pm $ 3000 26 000 -3720 +4435
37 2p 3p(67%) $+35(30\%)$ 1D $_{2}^{\rm e}$ 9 708 000.0 $\pm $ 1000 -1000 -4806 +154
38 2p 3d(99%) 3F $_{4}^{\rm o}$ 9 719 900.0 $\pm $ 2000 - -1989 +1625
39 2p 3d(42%) $+29(14\%)$ $+34(32\%)$ 1D $_{2}^{\rm o}$ 9 728 150.0 $\pm $ 3000 150 -4037 +45
40 2p 3d(75%) $+32(18\%)$ 3D $_{3}^{\rm o}$ 9 753 000.0 $\pm $ 2000 4000 -4889 -840
41 2p 3d(56%) $+34(37\%)$ 3P $_{2}^{\rm o}$ 9 772 700.0 $\pm $ 2000 19 700 -4447 -861
42 2p 3d(75%) $+36(22\%)$ 3P $_{1}^{\rm o}$ 9 773 832.0 $\pm $ 5000 - -3995 0
43 2p 3d(98%) 3P $_{0}^{\rm o}$ 9 776 004.0 $\pm $ 5000 - -4118 0
44 2p 3p(86%) $+28(11\%)$ 1S $_{0}^{\rm e}$ 9 786 485.0 $\pm $ 5000 - -6166 0
45 2p 3d(86%) $+40(10\%)$ 1F $_{3}^{\rm o}$ 9 829 000.0 $\pm $ 4000 -1000 -11 612 -2041
46 2p 3d(84%) 1P $_{1}^{\rm o}$ 9 844 520.0 $\pm $ 5000 16 520 -5716 0
47 2s 4s(99%) 3S $_{1}^{\rm e}$ 11 955 378.0 $\pm $ 5000 - -17 747 0
48 2s 4s(98%) 1S $_{0}^{\rm e}$ 11 980 800.0 $\pm $ 2000 - -15 429 -7
49 2s 4p(99%) 3P $_{0}^{\rm o}$ 12 021 399.0 $\pm $ 5000 - -14 649 0
50 2s 4p(84%) +52(15%) 3P $_{1}^{\rm o}$ 12 026 500.0 $\pm $ 3000 - -11 253 +2971
51 2s 4p(99%) 3P $_{2}^{\rm o}$ 12 037 223.0 $\pm $ 5000 - -12 358 0
52 2s 4p(83%) +50(15%) 1P $_{1}^{\rm o}$ 12 044 000.0 $\pm $ 5000 0 -10 558 +312
53 2s 4d(99%) 3D $_{1}^{\rm e}$ 12 073 000.0 $\pm $ 2000 0 -14 052 -1307
54 2s 4d(98%) 3D $_{2}^{\rm e}$ 12 075 000.0 $\pm $ 2000 0 -13 720 -1147
55 2s 4d(99%) 3D $_{3}^{\rm e}$ 12 080 800.0 $\pm $ 2000 -200 -10 894 +1228
56 2s 4d(98%) 1D $_{2}^{\rm e}$ 12 098 000.0 $\pm $ 2000 0 -13606 -45

68

 2p 4d(28%) +86(19%) +71(c14 39%) 3P $_{2}^{\rm o}$ 12 480 600.0 $\pm $ 3000 -400 -10041 +1054
69 2p 4d(59%) +95(19%) +84(20%) 3F $_{3}^{\rm o}$ 12 483 300.0 $\pm $ 3000 -700 -12 052 -464
70 2p 4d(58%) +87(17%) +97(23%) 3D $_{1}^{\rm o}$ 12 487 500.0 $\pm $ 3000 -500 -13 429 -3926
71 2p 4s(59%) +86(c16 14%) +68(c16 14%) 3P $_{2}^{\rm o}$ 12 491 100.0 $\pm $ 3000 - -13 170 -1628

78

 2p 4p(99%) 3D $_{3}^{\rm e}$ 12 559 300.0 $\pm $ 3000 -700 -2910 +3016
79 2p 4p(24%) +65(36%) +81(39%) 1D $_{2}^{\rm e}$ 12 559 300.0 $\pm $ 3000 - -3208 +4276

83

 2p 4d(54%) +67(19%) +86(23%) 1D $_{2}^{\rm o}$ 12 597 000.0 $\pm $ 3000 0 -4381 +1317
84 2p 4d(58%) +69(35%) 3D $_{3}^{\rm o}$ 12 603 000.0 $\pm $ 3000 0 -6401 +211

86

 2p 4d(39%) +68(51%) 3D $_{2}^{\rm o}$ 12 614 000.0 $\pm $ 3000 0 -3081 +1881
87 2p 4d(70%) +70(27%) 3P $_{1}^{\rm o}$ 12 615 000.0 $\pm $ 3000 0 -2092 +3250

95

 2p 4d(73%) +84(21%) 1F $_{3}^{\rm o}$ 12 630 000.0 $\pm $ 3000 -1000 -7211 -987
96 2p 4f(99%) 3D $_{1}^{\rm e}$ 12 630 996.0 $\pm $ 5000 - -7341 0
97 2p 4d(75%) +70(13%) +87(11%) 1P $_{1}^{\rm o}$ 12 638 236.0 $\pm $ 5000 - -3686 0
98 2p 4f(43%) +91(54%) 3D $_{2}^{\rm e}$ 12 635 506.0 $\pm $ 5000 - -7186 0


Source LaTeX | All tables | In the text

Article Contents
1 Introduction
2 Laboratory, solar and astronomical data
3 The benchmark method
4 Results
5 Summary and conclusions
References
List of tables
List of figures