CHIANTI

An Atomic Database for Spectroscopic Diagnostics of Astrophysical Plasmas.


Fe XX - VERSION 11.0.1


Here you find various information on the brightest lines, ordered in wavelength:
Wavelengths (Angstroms); weighted oscillator strengths (gf); transition probabilities (A); intensities (normalised) at 106 , 1010, 1015, 1020 cm-3; together with:
Configuration; Term; Index of the level (1=ground); Energy (observed if available - otherwise theoretical); of the lower (l) and upper levels (u)
Note that intensities have been calculated at log T[K]=7.00, where the ion fraction peaks in ionization equilibrium. Only lines brighter than 0.001 the strongest line (at all densities) are retained. Lines flagged with a "*" before their wavelengths only have theoretical energy levels. Please note that their wavelengths are not very accurate.


Wavelength

gf

Aul

R

R

R

R

Cl

Tl

Cu

Tu

Il

Iu

El

Eu

(A)

(s-1)

(106)

(1010)

(1015)

(1020)

(cm-1)

(cm-1)

* 34.4210 0.00e+00 4.34e+11 3.98e-04 3.99e-04 2.18e-03 2.59e-03 2s2.2p2(3P).3s 4P1/2 2s2.2p2(3P).4f 2F7/2 16 276 7177135 10082341
* 34.5589 2.13e-05 3.11e+11 3.84e-06 3.98e-06 1.42e-03 1.89e-03 2s2.2p2(3P).3s 2P1/2 2s2.2p2(1S).4p 2P1/2 18 284 7274312 10167920
* 34.6312 5.47e-06 4.39e+11 2.38e-05 2.39e-05 2.92e-03 4.21e-03 2s2.2p2(3P).3s 4P5/2 2s2.2p2(1S).4p 2P3/2 19 288 7286815 10174388
* 34.6773 0.00e+00 3.30e+11 5.62e-05 5.66e-05 1.43e-03 1.93e-03 2s2.2p2(3P).3s 2P3/2 2s2.2p2(1D).4f 2F7/2 20 292 7319937 10203670
* 34.6787 0.00e+00 3.34e+11 4.02e-04 4.04e-04 7.89e-03 1.10e-02 2s2.2p2(3P).3s 4P5/2 2s2.2p2(1D).4d 2P3/2 19 287 7286815 10170431
* 34.6992 1.13e-03 3.27e+11 1.84e-05 1.89e-05 1.01e-03 1.25e-03 2s2.2p2(3P).3s 2P3/2 2s2.2p2(1D).4f 2F5/2 20 291 7319937 10201849
* 34.7103 0.00e+00 4.00e+11 1.73e-05 1.80e-05 1.19e-03 1.47e-03 2s2.2p2(3P).3s 2P3/2 2s2.2p2(1D).4f 2G9/2 20 290 7319937 10200924
* 34.7206 0.00e+00 2.65e+11 4.10e-05 4.16e-05 2.41e-03 2.94e-03 2s2.2p2(3P).3s 2P1/2 2s2.2p2(1D).4d 2P1/2 18 283 7274312 10154447
* 34.7590 0.00e+00 1.07e+11 6.76e-05 6.86e-05 2.79e-03 3.32e-03 2s2.2p2(3P).3s 2P1/2 2s2.2p2(1D).4d 2D3/2 18 281 7274312 10151268
* 34.7601 0.00e+00 1.08e+11 1.21e-04 1.24e-04 4.42e-03 5.28e-03 2s2.2p2(3P).3s 2P1/2 2s2.2p2(1D).4d 2D5/2 18 280 7274312 10151172
* 35.0816 0.00e+00 1.13e+11 1.35e-04 1.35e-04 2.64e-03 3.69e-03 2s2.2p2(3P).3s 2P3/2 2s2.2p2(1D).4d 2P3/2 20 287 7319937 10170431
* 35.3203 0.00e+00 3.58e+10 3.95e-05 4.04e-05 1.44e-03 1.72e-03 2s2.2p2(3P).3s 2P3/2 2s2.2p2(1D).4d 2D5/2 20 280 7319937 10151172
* 35.6672 5.01e-05 6.23e+11 2.18e-06 2.25e-06 1.53e-03 2.05e-03 2s2.2p2(3P).3p 4P3/2 2s2.2p2(1S).4d 2D3/2 26 300 7470263 10273962
* 35.8003 8.14e-06 1.03e+12 1.44e-05 1.47e-05 6.16e-03 8.90e-03 2s2.2p2(3P).3p 4D5/2 2s2.2p2(1S).4d 2D5/2 27 299 7478586 10271862
* 35.8470 0.00e+00 8.75e+11 2.64e-04 2.65e-04 1.05e-02 1.47e-02 2s2.2p2(3P).3p 4D1/2 2s2.2p2(1D).4d 2F5/2 21 285 7378289 10167925
* 36.3939 1.38e-04 9.79e+11 1.08e-04 1.08e-04 1.30e-03 1.72e-03 2s2.2p2(3P).3p 4D3/2 2s2.2p2(1D).4d 2S1/2 22 286 7421381 10169096
* 36.4094 9.76e-04 1.53e+11 4.54e-05 4.56e-05 1.81e-03 2.53e-03 2s2.2p2(3P).3p 4D3/2 2s2.2p2(1D).4d 2F5/2 22 285 7421381 10167925
* 38.2081 1.96e-03 2.04e+11 1.41e-05 1.51e-05 1.45e-03 1.79e-03 2s2.2p2(3P).3p 4D7/2 2s2.2p2(1D).4d 2F7/2 31 278 7522633 10139881
* 39.2397 3.16e-05 2.11e+12 2.89e-05 2.92e-05 8.50e-04 1.03e-03 2s2.2p2(3P).3d 4F3/2 2s2.2p2(1D).4f 2D3/2 39 295 7658670 10207111
* 39.5762 1.49e-03 1.90e+12 6.54e-05 6.57e-05 1.20e-03 1.63e-03 2s2.2p2(3P).3d 4F5/2 2s2.2p2(1D).4f 2D5/2 42 296 7682657 10209425
* 41.3117 0.00e+00 6.44e+10 2.66e-05 2.89e-05 2.62e-03 3.15e-03 2s2.2p2(3P).3d 4F7/2 2s2.2p2(1D).4d 2G7/2 46 282 7733595 10154219
* 41.3352 0.00e+00 5.35e+10 5.04e-05 5.16e-05 1.84e-03 2.20e-03 2s2.2p2(3P).3d 2P3/2 2s2.2p2(1D).4d 2D5/2 45 280 7731924 10151172
* 41.4535 0.00e+00 3.40e+10 3.20e-05 3.27e-05 1.17e-03 1.39e-03 2s2.2p2(3P).3d 4D1/2 2s2.2p2(1D).4d 2D5/2 47 280 7738832 10151172
* 41.5054 0.00e+00 4.55e+10 2.41e-05 2.44e-05 9.95e-04 1.18e-03 2s2.2p2(3P).3d 4D5/2 2s2.2p2(1D).4d 2D3/2 48 281 7741944 10151268
* 41.6661 0.00e+00 4.41e+10 4.42e-05 4.43e-05 8.67e-04 1.21e-03 2s2.2p2(3P).3d 4D7/2 2s2.2p2(1D).4d 2P3/2 51 287 7770401 10170431
* 63.3670 2.16e-05 2.58e+10 4.76e-04 4.76e-04 1.14e-03 1.26e-03 2s.2p3(3D).3d 4F3/2 2s2.2p2(3P).4d 4D3/2 132 244 8410378 9988482
* 64.1940 2.86e-04 2.24e+10 1.73e-03 1.73e-03 1.57e-03 1.45e-03 2s.2p3(3D).3d 4F5/2 2s2.2p2(3P).4d 4F5/2 135 243 8418763 9976540
* 64.7300 0.00e+00 5.56e+09 3.16e-04 3.16e-04 1.02e-03 1.10e-03 2s.2p3(3D).3d 4G9/2 2s2.2p2(3P).4d 2F5/2 139 245 8445444 9990314
* 64.9400 1.72e-03 6.12e+09 1.27e-04 1.29e-04 1.96e-03 2.27e-03 2s.2p3(3D).3d 2G9/2 2s2.2p2(3P).4d 2F7/2 152 260 8503605 10043492
* 65.3330 0.00e+00 8.02e+09 4.51e-04 4.51e-04 1.46e-03 1.58e-03 2s.2p3(3D).3d 4F9/2 2s2.2p2(3P).4d 2F5/2 142 245 8459697 9990314
* 65.7670 0.00e+00 3.31e+10 1.85e-03 1.85e-03 5.97e-03 6.47e-03 2s.2p3(3D).3d 4G11/2 2s2.2p2(3P).4d 2F5/2 145 245 8469805 9990314
* 73.3500 8.23e-05 4.17e+09 7.68e-05 7.79e-05 1.18e-03 1.37e-03 2s.2p3(3P).3d 2F7/2 2s2.2p2(3P).4d 2F7/2 186 260 8680159 10043492
80.4890 1.58e-02 4.18e+09 4.36e-03 4.39e-03 4.86e-02 3.81e-02 2s2.2p3 4S3/2 2s.2p4 2P3/2 1 12 0 1242413
* 81.4180 6.72e-05 2.03e+10 3.37e-04 3.42e-04 5.18e-03 6.00e-03 2s.2p3(1D).3d 2G7/2 2s2.2p2(3P).4d 2F7/2 202 260 8815269 10043492
* 82.7860 1.89e-05 3.99e+09 6.51e-05 6.60e-05 1.00e-03 1.16e-03 2s.2p3(1D).3d 2F7/2 2s2.2p2(3P).4d 2F7/2 203 260 8835554 10043492
83.2100 1.19e-02 2.95e+09 1.03e-03 1.03e-03 2.12e-03 2.79e-03 2s.2p4 4P5/2 2p5 2P3/2 6 14 752784 1954559
83.2330 5.59e-02 2.76e+10 5.29e-03 5.30e-03 1.20e-01 1.06e-01 2s2.2p3 2D3/2 2s.2p4 2P1/2 2 13 138589 1340042
83.6690 3.41e-03 1.66e+09 8.10e-04 8.12e-04 1.13e-02 8.16e-03 2s2.2p3 4S3/2 2s.2p4 2S1/2 1 11 0 1195191
88.1960 6.94e-03 1.54e+09 5.08e-04 5.08e-04 1.04e-03 1.37e-03 2s.2p4 4P3/2 2p5 2P3/2 7 14 820718 1954559
90.5940 6.82e-02 1.42e+10 1.32e-02 1.33e-02 1.47e-01 1.15e-01 2s2.2p3 2D3/2 2s.2p4 2P3/2 2 12 138589 1242413
92.6130 9.56e-03 3.81e+09 6.56e-04 6.57e-04 1.49e-02 1.31e-02 2s2.2p3 2P1/2 2s.2p4 2P1/2 4 13 260275 1340042
93.7810 5.07e-01 9.76e+10 8.74e-02 8.80e-02 9.75e-01 7.63e-01 2s2.2p3 2D5/2 2s.2p4 2P3/2 3 12 176098 1242413
94.6430 1.16e-01 4.39e+10 1.89e-02 1.90e-02 2.63e-01 1.91e-01 2s2.2p3 2D3/2 2s.2p4 2S1/2 2 11 138589 1195191
95.9210 8.63e-03 1.60e+09 2.82e-03 2.83e-03 3.34e-02 1.95e-02 2s2.2p3 4S3/2 2s.2p4 2D3/2 1 9 0 1042530
98.0730 1.21e-01 4.32e+10 5.43e-03 5.44e-03 1.32e-02 1.95e-02 2s.2p4 2D3/2 2p5 2P1/2 9 15 1042530 2062175
98.3550 2.65e-01 9.33e+10 1.51e-02 1.52e-02 3.44e-01 3.03e-01 2s2.2p3 2P3/2 2s.2p4 2P1/2 5 13 323317 1340042
101.8190 5.39e-02 8.88e+09 7.32e-03 7.38e-03 8.17e-02 6.40e-02 2s2.2p3 2P1/2 2s.2p4 2P3/2 4 12 260275 1242413
106.9610 1.22e-01 3.62e+10 1.38e-02 1.38e-02 1.92e-01 1.39e-01 2s2.2p3 2P1/2 2s.2p4 2S1/2 4 11 260275 1195191
108.8030 6.57e-02 9.46e+09 7.30e-03 7.35e-03 8.14e-02 6.38e-02 2s2.2p3 2P3/2 2s.2p4 2P3/2 5 12 323317 1242413
109.6460 1.17e-01 1.66e+10 4.40e-03 4.41e-03 9.05e-03 1.19e-02 2s.2p4 2D3/2 2p5 2P3/2 9 14 1042530 1954559
* 109.7610 3.94e-01 2.73e+10 1.38e-04 1.39e-04 2.31e-03 2.86e-03 2s2.2p2(1D).3d 2G7/2 2s.2p3(1D).3d 2G7/2 67 202 7904202 8815269
110.6270 2.93e-01 4.07e+10 6.23e-02 6.25e-02 7.37e-01 4.29e-01 2s2.2p3 2D3/2 2s.2p4 2D3/2 2 9 138589 1042530
111.5790 2.99e-01 4.08e+10 1.06e-02 1.06e-02 2.19e-02 2.87e-02 2s.2p4 2D5/2 2p5 2P3/2 10 14 1058331 1954559
* 111.9590 7.59e-01 4.04e+10 4.45e-05 4.74e-05 3.60e-03 4.33e-03 2s2.2p2(1D).3d 2G9/2 2s.2p3(1D).3d 2G9/2 68 201 7920675 8813858
113.3490 3.51e-01 3.08e+10 4.20e-02 4.26e-02 8.62e-01 4.74e-01 2s2.2p3 2D5/2 2s.2p4 2D5/2 3 10 176098 1058331
114.6950 8.65e-03 2.23e+09 7.94e-04 7.95e-04 1.10e-02 8.00e-03 2s2.2p3 2P3/2 2s.2p4 2S1/2 5 11 323317 1195191
115.3420 1.02e-02 2.65e+09 2.83e-04 2.84e-04 6.91e-04 1.02e-03 2s.2p4 2S1/2 2p5 2P1/2 11 15 1195191 2062175
118.6800 8.18e-02 1.96e+10 4.07e-01 4.07e-01 3.67e-01 1.46e-01 2s2.2p3 4S3/2 2s.2p4 4P1/2 1 8 0 842603
* 120.5320 2.65e-01 1.22e+10 1.66e-04 1.67e-04 2.14e-03 2.59e-03 2s2.2p2(3P).3d 4F9/2 2s.2p3(3P).3d 4F9/2 53 174 7773692 8603346
121.8450 1.54e-01 1.75e+10 7.80e-01 7.80e-01 7.17e-01 2.73e-01 2s2.2p3 4S3/2 2s.2p4 4P3/2 1 7 0 820718
121.9870 1.50e-01 3.44e+10 3.48e-03 3.48e-03 8.48e-03 1.25e-02 2s.2p4 2P3/2 2p5 2P1/2 12 15 1242413 2062175
127.8360 2.68e-02 2.79e+09 3.70e-03 3.71e-03 4.37e-02 2.54e-02 2s2.2p3 2P1/2 2s.2p4 2D3/2 4 9 260275 1042530
131.6880 8.89e-02 8.80e+09 1.94e-03 1.95e-03 3.99e-03 5.25e-03 2s.2p4 2S1/2 2p5 2P3/2 11 14 1195191 1954559
132.8400 1.95e-01 1.25e+10 1.00e+00 1.00e+00 1.00e+00 3.40e-01 2s2.2p3 4S3/2 2s.2p4 4P5/2 1 6 0 752784
136.0520 9.37e-02 5.75e+09 6.53e-03 6.63e-03 1.34e-01 7.38e-02 2s2.2p3 2P3/2 2s.2p4 2D5/2 5 10 323317 1058331
138.4790 1.68e-01 2.99e+10 2.66e-03 2.67e-03 6.49e-03 9.56e-03 2s.2p4 2P1/2 2p5 2P1/2 13 15 1340042 2062175
139.0410 6.20e-03 5.44e+08 6.63e-04 6.64e-04 7.84e-03 4.56e-03 2s2.2p3 2P3/2 2s.2p4 2D3/2 5 9 323317 1042530
140.4210 3.29e-01 2.85e+10 5.91e-03 5.91e-03 1.21e-02 1.59e-02 2s.2p4 2P3/2 2p5 2P3/2 12 14 1242413 1954559
* 140.4790 1.37e-01 4.63e+09 2.14e-04 2.15e-04 1.18e-03 1.33e-03 2s2.2p2(3P).3d 4F7/2 2s.2p3(3D).3d 4G9/2 46 139 7733595 8445444
* 141.0800 1.83e-01 6.11e+09 2.17e-04 2.18e-04 1.25e-03 1.40e-03 2s2.2p2(3P).3p 4D7/2 2s.2p3(3D).3p 4F9/2 31 107 7522633 8231451
142.0430 1.66e-03 2.73e+08 4.73e-03 4.73e-03 4.27e-03 1.70e-03 2s2.2p3 2D3/2 2s.2p4 4P1/2 2 8 138589 842603
* 143.6550 1.50e-01 4.04e+09 4.98e-04 4.99e-04 2.27e-03 2.51e-03 2s2.2p2(3P).3d 4F9/2 2s.2p3(3D).3d 4G11/2 53 145 7773692 8469805
146.6000 1.05e-03 8.18e+07 3.03e-03 3.03e-03 2.79e-03 1.06e-03 2s2.2p3 2D3/2 2s.2p4 4P3/2 2 7 138589 820718
155.1300 7.10e-04 4.87e+07 1.71e-03 1.71e-03 1.57e-03 5.97e-04 2s2.2p3 2D5/2 2s.2p4 4P3/2 3 7 176098 820718
162.8150 1.31e-02 5.53e+08 3.61e-02 3.61e-02 3.61e-02 1.23e-02 2s2.2p3 2D3/2 2s.2p4 4P5/2 2 6 138589 752784
171.7250 1.99e-03 2.26e+08 3.24e-03 3.24e-03 2.93e-03 1.16e-03 2s2.2p3 2P1/2 2s.2p4 4P1/2 4 8 260275 842603
173.4050 6.67e-03 2.44e+08 1.50e-02 1.50e-02 1.50e-02 5.08e-03 2s2.2p3 2D5/2 2s.2p4 4P5/2 3 6 176098 752784
201.0450 3.92e-03 1.60e+08 4.32e-03 4.32e-03 3.97e-03 1.51e-03 2s2.2p3 2P3/2 2s.2p4 4P3/2 5 7 323317 820718
232.8470 1.12e-03 2.29e+07 1.05e-03 1.05e-03 1.05e-03 3.55e-04 2s2.2p3 2P3/2 2s.2p4 4P5/2 5 6 323317 752784
309.2940 0.00e+00 3.13e+04 1.52e-02 1.53e-02 1.18e-02 1.76e-07 2s2.2p3 4S3/2 2s2.2p3 2P3/2 1 5 0 323317
* 370.8500 3.93e-01 2.38e+09 8.81e-04 8.82e-04 2.49e-03 2.28e-03 2s2.2p2(3P).3p 4P5/2 2s2.2p2(3P).3d 4D7/2 29 51 7500750 7770401
384.2090 0.00e+00 3.27e+04 2.34e-02 2.35e-02 6.06e-03 8.18e-08 2s2.2p3 4S3/2 2s2.2p3 2P1/2 1 4 0 260275
* 388.5050 7.04e-01 3.12e+09 1.20e-04 1.22e-04 3.15e-03 3.28e-03 2s2.2p2(1D).3p 2F7/2 2s2.2p2(1D).3d 2G9/2 40 68 7663278 7920675
* 398.3130 6.58e-01 2.77e+09 2.02e-03 2.02e-03 5.31e-03 4.69e-03 2s2.2p2(3P).3p 4D7/2 2s2.2p2(3P).3d 4F9/2 31 53 7522633 7773692
404.6570 5.70e-01 2.64e+09 1.04e-03 1.04e-03 2.36e-03 2.12e-03 2s2.2p2(3P).3s 4P5/2 2s2.2p2(3P).3p 4D7/2 19 31 7256583 7503706
541.3360 0.00e+00 4.57e+04 1.27e-02 1.27e-02 9.81e-03 1.47e-07 2s2.2p3 2D3/2 2s2.2p3 2P3/2 2 5 138589 323317
567.8660 0.00e+00 1.34e+03 6.18e-02 6.16e-02 6.29e-04 7.88e-09 2s2.2p3 4S3/2 2s2.2p3 2D5/2 1 3 0 176098
679.2600 0.00e+00 1.20e+04 2.65e-03 2.67e-03 2.05e-03 3.08e-08 2s2.2p3 2D5/2 2s2.2p3 2P3/2 3 5 176098 323317
721.5580 0.00e+00 1.63e+04 9.55e-02 9.55e-02 4.34e-03 5.27e-08 2s2.2p3 4S3/2 2s2.2p3 2D3/2 1 2 0 138589
821.7870 0.00e+00 6.03e+03 2.02e-03 2.03e-03 5.23e-04 7.05e-09 2s2.2p3 2D3/2 2s2.2p3 2P1/2 2 4 138589 260275
2666.0271 0.00e+00 5.84e+02 5.74e-03 5.72e-03 5.84e-05 7.31e-10 2s2.2p3 2D3/2 2s2.2p3 2D5/2 2 3 138589 176098

Created by Giulio Del Zanna on Wed Apr 16 17:43:00 2025