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]=5.80, 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)

959.0760

1.92e-01

2.76e+08

1.28e-05

1.62e-05

4.47e-05

6.53e-04

3s 3d

1D2

3p 3d

1D2

14

18

467633

571900

* 1052.7920

3.16e+00

2.12e+09

4.72e-09

1.50e-08

7.95e-08

1.25e-03

3d 4p

3D3

3d 4d

3F4

117

183

1249881

1344866.5

* 1062.9930

6.04e+00

3.96e+09

3.33e-08

5.45e-08

2.08e-07

2.24e-03

3d 4p

1F3

3d 4d

1G4

124

188

1265053

1359127

* 1069.9240

1.73e+00

2.02e+09

7.24e-07

1.50e-06

7.87e-06

1.16e-03

3p 4p

3D1

3p 4d

3F2

55

74

1002258.9

1095723.5

* 1078.6110

1.84e+00

1.51e+09

4.56e-07

9.26e-07

4.03e-06

1.21e-03

3p 4p

3D2

3p 4d

3F3

56

75

1003546.8

1096258.6

* 1087.0861

4.59e+00

2.87e+09

2.67e-06

8.28e-06

3.33e-05

2.91e-03

3p 4p

3D3

3p 4d

3F4

57

76

1006737.4

1098726.4

1116.0710

1.63e+00

1.64e+09

3.77e-05

3.95e-05

5.23e-05

1.36e-03

3s 4p

1P1

3s 4d

1D2

32

45

832314

921914

* 1143.6260

1.25e+00

1.28e+09

4.44e-06

5.78e-06

1.77e-05

1.04e-03

3s 4p

3P1

3s 4d

3D2

30

43

827836.1

915277.3

* 1156.9120

2.52e+00

1.79e+09

8.21e-06

1.28e-05

3.51e-05

2.02e-03

3s 4p

3P2

3s 4d

3D3

31

44

829066.9

915503.9

Created by Giulio Del Zanna on Wed Apr 16 17:42:35 2025