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]=6.70, 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)

3.9813

9.31e-01

9.80e+13

7.26e-04

7.26e-04

7.31e-04

5.81e-04

1s2.2s

2S1/2

1s.2s(3S).2p

2P3/2

1

69

0

25117400

3.9898

5.44e-01

5.70e+13

2.28e-03

2.28e-03

2.28e-03

1.39e-03

1s2.2p

2P1/2

1s.2p2(1D)

2D3/2

2

75

257026

25320900

3.9938

7.18e-01

5.00e+13

3.16e-03

3.16e-03

3.16e-03

1.91e-03

1s2.2p

2P3/2

1s.2p2(1D)

2D5/2

3

76

282603

25321400

15.9326

5.04e-02

3.31e+11

8.42e-03

8.42e-03

8.44e-03

1.68e-02

1s2.2s

2S1/2

1s2.5p

2P3/2

1

18

0

6276440

15.9367

2.52e-02

3.31e+11

4.21e-03

4.21e-03

4.22e-03

8.15e-03

1s2.2s

2S1/2

1s2.5p

2P1/2

1

17

0

6274820

16.5970

9.06e-02

5.49e+11

4.70e-03

4.70e-03

4.72e-03

2.13e-02

1s2.2p

2P1/2

1s2.5d

2D3/2

2

19

257026

6282200

16.6597

3.31e-03

3.97e+10

1.61e-03

1.61e-03

1.61e-03

1.44e-03

1s2.2p

2P1/2

1s2.5s

2S1/2

2

16

257026

6259530

16.6666

1.62e-01

6.50e+11

8.47e-03

8.47e-03

8.50e-03

3.79e-02

1s2.2p

2P3/2

1s2.5d

2D5/2

3

20

282603

6282630

16.6678

1.80e-02

1.08e+11

9.20e-04

9.20e-04

9.25e-04

4.18e-03

1s2.2p

2P3/2

1s2.5d

2D3/2

3

19

282603

6282200

16.7310

6.59e-03

7.85e+10

3.17e-03

3.17e-03

3.17e-03

2.84e-03

1s2.2p

2P3/2

1s2.5s

2S1/2

3

16

282603

6259530

17.7371

1.21e-01

6.41e+11

2.63e-02

2.63e-02

2.64e-02

5.72e-02

1s2.2s

2S1/2

1s2.4p

2P3/2

1

11

0

5637900

17.7469

6.04e-02

6.40e+11

1.32e-02

1.32e-02

1.32e-02

2.82e-02

1s2.2s

2S1/2

1s2.4p

2P1/2

1

10

0

5634800

18.5463

2.46e-01

1.19e+12

1.59e-02

1.59e-02

1.60e-02

7.12e-02

1s2.2p

2P1/2

1s2.4d

2D3/2

2

12

257026

5648940

18.6324

4.40e-01

1.41e+12

2.86e-02

2.86e-02

2.88e-02

1.27e-01

1s2.2p

2P3/2

1s2.4d

2D5/2

3

13

282603

5649610

18.6347

4.89e-02

2.35e+11

3.13e-03

3.13e-03

3.15e-03

1.40e-02

1s2.2p

2P3/2

1s2.4d

2D3/2

3

12

282603

5648940

18.6962

8.34e-03

7.95e+10

6.06e-03

6.06e-03

6.07e-03

5.86e-03

1s2.2p

2P1/2

1s2.4s

2S1/2

2

9

257026

5605700

18.7861

1.66e-02

1.57e+11

1.19e-02

1.19e-02

1.19e-02

1.15e-02

1s2.2p

2P3/2

1s2.4s

2S1/2

3

9

282603

5605700

23.5063

4.77e-01

1.44e+12

1.59e-01

1.59e-01

1.60e-01

3.97e-01

1s2.2s

2S1/2

1s2.3p

2P3/2

1

6

0

4254180

23.5463

2.38e-01

1.43e+12

8.05e-02

8.05e-02

8.08e-02

1.98e-01

1s2.2s

2S1/2

1s2.3p

2P1/2

1

5

0

4246950

24.8509

1.36e+00

3.66e+12

1.27e-01

1.27e-01

1.28e-01

5.57e-01

1s2.2p

2P1/2

1s2.3d

2D3/2

2

7

257026

4281030

24.9940

2.43e+00

4.32e+12

2.29e-01

2.29e-01

2.30e-01

1.00e+00

1s2.2p

2P3/2

1s2.3d

2D5/2

3

8

282603

4283560

25.0098

2.69e-01

7.18e+11

2.48e-02

2.48e-02

2.49e-02

1.09e-01

1s2.2p

2P3/2

1s2.3d

2D3/2

3

7

282603

4281030

25.5167

3.90e-02

2.00e+11

5.89e-02

5.89e-02

5.89e-02

5.46e-02

1s2.2p

2P1/2

1s2.3s

2S1/2

2

4

257026

4176030

25.6843

7.75e-02

3.92e+11

1.15e-01

1.15e-01

1.15e-01

1.06e-01

1s2.2p

2P3/2

1s2.3s

2S1/2

3

4

282603

4176030

47.6098

1.39e-01

1.03e+11

8.77e-04

8.77e-04

8.79e-04

1.75e-03

1s2.3s

2S1/2

1s2.5p

2P3/2

4

18

4176030

6276440

47.6465

6.96e-02

1.02e+11

4.34e-04

4.34e-04

4.35e-04

8.40e-04

1s2.3s

2S1/2

1s2.5p

2P1/2

4

17

4176030

6274820

49.1340

2.74e-01

1.89e+11

5.46e-04

5.46e-04

5.49e-04

2.48e-03

1s2.3p

2P1/2

1s2.5d

2D3/2

5

19

4246950

6282200

49.2987

4.91e-01

2.24e+11

9.86e-04

9.86e-04

9.91e-04

4.42e-03

1s2.3p

2P3/2

1s2.5d

2D5/2

6

20

4254180

6282630

49.8666

3.90e-02

5.23e+10

7.08e-04

7.08e-04

7.09e-04

6.35e-04

1s2.3p

2P3/2

1s2.5s

2S1/2

6

16

4254180

6259530

* 49.9594

6.27e-01

2.79e+11

1.26e-03

1.26e-03

1.26e-03

2.70e-03

1s2.3d

2D3/2

1s2.5f

2F5/2

7

21

4281327.4

6282954

* 50.0190

8.94e-01

2.98e+11

1.81e-03

1.81e-03

1.81e-03

3.91e-03

1s2.3d

2D5/2

1s2.5f

2F7/2

8

23

4284015.1

6283241.9

68.4060

5.19e-01

1.85e+11

1.97e-03

1.97e-03

1.97e-03

4.28e-03

1s2.3s

2S1/2

1s2.4p

2P3/2

4

11

4176030

5637900

68.5510

2.59e-01

1.84e+11

9.79e-04

9.79e-04

9.82e-04

2.10e-03

1s2.3s

2S1/2

1s2.4p

2P1/2

4

10

4176030

5634800

71.3270

1.18e+00

3.86e+11

1.34e-03

1.34e-03

1.35e-03

6.01e-03

1s2.3p

2P1/2

1s2.4d

2D3/2

5

12

4246950

5648940

71.6620

2.10e+00

4.55e+11

2.40e-03

2.40e-03

2.41e-03

1.06e-02

1s2.3p

2P3/2

1s2.4d

2D5/2

6

13

4254180

5649610

71.6970

2.34e-01

7.57e+10

2.62e-04

2.62e-04

2.63e-04

1.17e-03

1s2.3p

2P3/2

1s2.4d

2D3/2

6

12

4254180

5648940

* 73.0300

4.06e+00

8.47e+11

3.29e-03

3.29e-03

3.30e-03

7.60e-03

1s2.3d

2D3/2

1s2.4f

2F5/2

7

14

4281327.4

5650635.7

* 73.1430

5.79e+00

9.03e+11

4.76e-03

4.76e-03

4.77e-03

1.10e-02

1s2.3d

2D5/2

1s2.4f

2F7/2

8

15

4284015.1

5651197.7

73.5970

8.95e-02

5.51e+10

1.07e-03

1.07e-03

1.07e-03

1.03e-03

1s2.3p

2P1/2

1s2.4s

2S1/2

5

9

4246950

5605700

73.9910

1.78e-01

1.08e+11

2.08e-03

2.08e-03

2.08e-03

2.01e-03

1s2.3p

2P3/2

1s2.4s

2S1/2

6

9

4254180

5605700

353.8530

1.15e-01

1.53e+09

1.00e+00

1.00e+00

1.00e+00

9.84e-03

1s2.2s

2S1/2

1s2.2p

2P3/2

1

3

0

282603

389.0660

5.24e-02

1.15e+09

4.63e-01

4.63e-01

4.62e-01

3.40e-03

1s2.2s

2S1/2

1s2.2p

2P1/2

1

2

0

257026

Created by Giulio Del Zanna on Wed Apr 16 17:42:11 2025