CHIANTI

An Atomic Database for Spectroscopic Diagnostics of Astrophysical Plasmas.


Si IV - 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]=4.90, where the ion fraction peaks in ionization equilibrium. Only lines brighter than 0.001 the strongest line (at all densities) are retained.


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)

327.1370 1.01e-02 1.54e+08 8.41e-05 8.41e-05 8.78e-05 9.79e-03 3s 2S1/2 6p 2P3/2 1 24 0 305682.28
327.1810 5.11e-03 1.56e+08 4.26e-05 4.26e-05 4.45e-05 4.96e-03 3s 2S1/2 6p 2P1/2 1 23 0 305641.09
361.5600 1.90e-02 2.38e+08 3.03e-04 3.03e-04 3.34e-04 2.32e-02 3s 2S1/2 5p 2P3/2 1 15 0 276579.03
361.6590 9.72e-03 2.42e+08 1.52e-04 1.52e-04 1.69e-04 1.18e-02 3s 2S1/2 5p 2P1/2 1 14 0 276503.66
412.1550 8.87e-03 8.55e+07 3.97e-05 3.96e-05 2.80e-05 3.72e-03 3p 2P1/2 6d 2D3/2 2 25 71287.539 313914.91
412.9390 1.78e-02 1.14e+08 7.55e-05 7.55e-05 5.60e-05 7.42e-03 3p 2P3/2 6d 2D5/2 3 26 71748.641 313914.91
437.8490 1.28e-02 2.17e+08 5.57e-05 5.57e-05 5.58e-05 5.75e-03 3p 2P1/2 6s 2S1/2 2 22 71287.539 299676.94
438.7340 2.59e-02 4.39e+08 1.13e-04 1.13e-04 1.13e-04 1.16e-02 3p 2P3/2 6s 2S1/2 3 22 71748.641 299676.94
454.1120 1.32e-02 1.04e+08 7.93e-05 7.93e-05 5.87e-05 6.16e-03 3p 2P1/2 5d 2D3/2 2 16 71287.539 291497.5
455.0650 2.76e-03 2.18e+07 1.66e-05 1.66e-05 1.23e-05 1.29e-03 3p 2P3/2 5d 2D3/2 3 16 71748.641 291497.5
455.0650 2.48e-02 1.30e+08 1.48e-04 1.48e-04 1.10e-04 1.15e-02 3p 2P3/2 5d 2D5/2 3 17 71748.641 291497.59
457.8150 4.12e-02 3.20e+08 2.35e-03 2.35e-03 3.30e-03 7.06e-02 3s 2S1/2 4p 2P3/2 1 8 0 218428.67
458.1550 2.12e-02 3.29e+08 1.20e-03 1.20e-03 1.70e-03 3.64e-02 3s 2S1/2 4p 2P1/2 1 7 0 218266.86
515.1180 3.55e-02 4.36e+08 2.31e-04 2.31e-04 2.88e-04 1.83e-02 3p 2P1/2 5s 2S1/2 2 13 71287.539 265417.94
516.3440 7.16e-02 8.76e+08 4.63e-04 4.63e-04 5.78e-04 3.66e-02 3p 2P3/2 5s 2S1/2 3 13 71748.641 265417.94
559.5330 7.17e-03 3.75e+07 7.43e-05 7.43e-05 8.18e-05 3.82e-03 3p 2P1/2 4d 2D3/2 2 9 71287.539 250008.14
560.9800 1.39e-02 4.83e+07 1.45e-04 1.45e-04 1.58e-04 7.37e-03 3p 2P3/2 4d 2D5/2 3 10 71748.641 250008.02
645.7620 3.48e-01 6.80e+08 6.59e-05 6.59e-05 2.59e-04 3.69e-02 3d 2D5/2 6f 2F7/2 5 28 160374.41 315230.28
645.7620 1.74e-02 4.53e+07 3.29e-06 3.29e-06 1.30e-05 1.84e-03 3d 2D5/2 6f 2F5/2 5 27 160374.41 315230.28
645.7670 2.43e-01 6.35e+08 4.62e-05 4.62e-05 1.82e-04 2.58e-02 3d 2D3/2 6f 2F5/2 4 27 160375.59 315230.28
688.1940 2.22e-02 7.63e+07 1.98e-05 1.98e-05 2.07e-05 2.31e-03 3d 2D5/2 6p 2P3/2 5 24 160374.41 305682.28
688.3950 1.22e-02 8.41e+07 1.09e-05 1.09e-05 1.14e-05 1.27e-03 3d 2D3/2 6p 2P1/2 4 23 160375.59 305641.09
749.9370 4.77e-02 9.19e+07 8.34e-06 8.34e-06 3.68e-05 4.75e-03 3d 2D5/2 5f 2F5/2 5 18 160374.41 293719
749.9370 9.53e-01 1.38e+09 1.67e-04 1.67e-04 7.37e-04 9.51e-02 3d 2D5/2 5f 2F7/2 5 19 160374.41 293719
749.9430 6.69e-01 1.29e+09 1.17e-04 1.17e-04 5.16e-04 6.67e-02 3d 2D3/2 5f 2F5/2 4 18 160375.59 293719
815.0530 2.32e-01 1.13e+09 4.06e-03 4.06e-03 5.34e-03 1.09e-01 3p 2P1/2 4s 2S1/2 2 6 71287.539 193978.89
818.1280 4.68e-01 2.28e+09 8.15e-03 8.15e-03 1.07e-02 2.19e-01 3p 2P3/2 4s 2S1/2 3 6 71748.641 193978.89
860.5510 7.06e-02 1.55e+08 8.29e-05 8.29e-05 9.15e-05 6.35e-03 3d 2D5/2 5p 2P3/2 5 15 160374.41 276579.03
861.1180 3.92e-02 1.72e+08 4.53e-05 4.53e-05 5.06e-05 3.52e-03 3d 2D3/2 5p 2P1/2 4 14 160375.59 276503.66
1066.6140 5.33e+00 3.77e+09 7.95e-04 7.96e-04 3.80e-03 3.74e-01 3d 2D5/2 4f 2F7/2 5 12 160374.41 254129.03
1066.6360 2.66e-01 2.51e+08 3.97e-05 3.97e-05 1.89e-04 1.87e-02 3d 2D5/2 4f 2F5/2 5 11 160374.41 254127.08
1066.6500 3.73e+00 3.52e+09 5.57e-04 5.57e-04 2.66e-03 2.62e-01 3d 2D3/2 4f 2F5/2 4 11 160375.59 254127.08
1122.4850 1.68e+00 2.19e+09 1.93e-02 1.93e-02 4.33e-02 5.64e-01 3p 2P1/2 3d 2D3/2 2 4 71287.539 160375.59
1128.3250 3.36e-01 4.33e+08 3.80e-03 3.80e-03 8.52e-03 1.11e-01 3p 2P3/2 3d 2D3/2 3 4 71748.641 160375.59
1128.3400 3.03e+00 2.60e+09 3.44e-02 3.44e-02 7.70e-02 1.00e+00 3p 2P3/2 3d 2D5/2 3 5 71748.641 160374.41
1228.3490 6.09e-02 1.32e+08 1.21e-05 1.21e-05 1.21e-05 1.25e-03 4p 2P1/2 6s 2S1/2 7 22 218266.86 299676.94
1230.7950 1.23e-01 2.66e+08 2.43e-05 2.43e-05 2.43e-05 2.51e-03 4p 2P3/2 6s 2S1/2 8 22 218428.67 299676.94
1393.7550 1.08e+00 9.06e+08 1.00e+00 1.00e+00 1.00e+00 9.37e-01 3s 2S1/2 3p 2P3/2 1 3 0 71748.641
1402.7700 5.38e-01 8.91e+08 5.00e-01 5.00e-01 4.99e-01 4.61e-01 3s 2S1/2 3p 2P1/2 1 2 0 71287.539
1533.2190 1.02e+00 3.53e+08 1.44e-05 1.44e-05 5.67e-05 8.06e-03 4d 2D5/2 6f 2F7/2 10 28 250008.02 315230.28
1533.2220 7.12e-01 3.29e+08 1.01e-05 1.01e-05 3.96e-05 5.63e-03 4d 2D3/2 6f 2F5/2 9 27 250008.14 315230.28
1634.5690 1.10e+00 3.40e+08 7.57e-06 7.57e-06 5.04e-05 7.27e-03 4f 2F5/2 6g 2G7/2 11 29 254127.08 315305.28
1634.6210 1.42e+00 3.53e+08 9.81e-06 9.81e-06 6.55e-05 9.44e-03 4f 2F7/2 6g 2G9/2 12 30 254129.03 315305.28
1722.5260 8.78e-01 4.77e+08 9.30e-04 9.30e-04 1.31e-03 2.80e-02 3d 2D5/2 4p 2P3/2 5 8 160374.41 218428.67
1722.5620 9.74e-02 5.30e+07 1.03e-04 1.03e-04 1.45e-04 3.11e-03 3d 2D3/2 4p 2P3/2 4 8 160375.59 218428.67
1727.3760 4.89e-01 5.29e+08 5.11e-04 5.11e-04 7.23e-04 1.55e-02 3d 2D3/2 4p 2P1/2 4 7 160375.59 218266.86
2120.8420 4.13e-01 3.00e+08 3.86e-05 3.86e-05 4.82e-05 3.05e-03 4p 2P1/2 5s 2S1/2 7 13 218266.86 265417.94
2128.1460 8.32e-01 6.02e+08 7.72e-05 7.72e-05 9.64e-05 6.10e-03 4p 2P3/2 5s 2S1/2 8 13 218428.67 265417.94
2287.7539 4.14e+00 6.39e+08 2.54e-05 2.54e-05 1.12e-04 1.44e-02 4d 2D5/2 5f 2F7/2 10 19 250008.02 293719
2287.7610 2.89e+00 5.97e+08 1.78e-05 1.78e-05 7.83e-05 1.01e-02 4d 2D3/2 5f 2F5/2 9 18 250008.14 293719
2518.2051 8.06e+00 1.05e+09 1.91e-05 1.91e-05 1.62e-04 2.15e-02 4f 2F5/2 5g 2G7/2 11 20 254127.08 293837.91
2518.3291 1.05e+01 1.09e+09 2.49e-05 2.49e-05 2.10e-04 2.79e-02 4f 2F7/2 5g 2G9/2 12 21 254129.03 293837.91
3150.4709 2.43e+00 4.04e+08 1.42e-04 1.42e-04 1.57e-04 7.31e-03 4p 2P1/2 4d 2D3/2 7 9 218266.86 250008.14
3166.6140 4.84e-01 7.99e+07 2.80e-05 2.80e-05 3.08e-05 1.44e-03 4p 2P3/2 4d 2D3/2 8 9 218428.67 250008.14
3166.6270 4.36e+00 4.80e+08 2.56e-04 2.56e-04 2.78e-04 1.30e-02 4p 2P3/2 4d 2D5/2 8 10 218428.67 250008.02
3763.4990 1.79e+00 2.05e+08 2.51e-05 2.51e-05 2.77e-05 1.92e-03 4d 2D5/2 5p 2P3/2 10 15 250008.02 276579.03
3774.2241 9.95e-01 2.28e+08 1.37e-05 1.37e-05 1.53e-05 1.07e-03 4d 2D3/2 5p 2P1/2 9 14 250008.14 276503.66
4090.0161 1.58e+00 1.55e+08 1.27e-04 1.27e-04 1.79e-04 3.83e-03 4s 2S1/2 4p 2P3/2 6 8 193978.89 218428.67
4117.2651 7.86e-01 1.53e+08 6.20e-05 6.20e-05 8.77e-05 1.88e-03 4s 2S1/2 4p 2P1/2 6 7 193978.89 218266.86
4213.5981 3.61e+00 1.65e+08 2.45e-06 2.45e-06 9.64e-06 1.37e-03 5d 2D5/2 6f 2F7/2 17 28 291497.59 315230.28
4632.5718 7.11e+00 2.73e+08 2.14e-06 2.14e-06 1.43e-05 2.06e-03 5f 2F5/2 6g 2G7/2 18 29 293719 315305.28
4632.5718 9.16e+00 2.83e+08 2.78e-06 2.78e-06 1.85e-05 2.67e-03 5f 2F7/2 6g 2G9/2 19 30 293719 315305.28
4655.6089 1.65e+01 4.21e+08 8.55e-07 8.57e-07 3.26e-05 4.74e-03 5g 2G9/2 6h 2H11/2 21 32 293837.91 315317.38
4655.6089 1.34e+01 4.12e+08 6.96e-07 6.98e-07 2.66e-05 3.87e-03 5g 2G7/2 6h 2H9/2 20 31 293837.91 315317.38

Created by Giulio Del Zanna on Wed Apr 16 17:44:26 2025