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]=6.00, 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)

543.5020

4.57e-01

2.06e+09

2.69e-04

4.91e-04

1.79e-03

3.64e-03

3s 3d

3D1

3p 3d

3F2

11

15

499858

683850

544.3980

1.07e-01

4.80e+08

6.26e-05

1.14e-04

4.17e-04

8.48e-04

3s 3d

3D2

3p 3d

3F2

12

15

500161

683850

551.3560

2.33e-10

1.02e+00

1.15e-02

4.07e-04

1.05e-08

3.81e-12

3s2

1S0

3s 3p

3P2

1

4

0

181371

569.0000

1.22e-03

8.32e+06

5.10e-02

5.52e-02

3.76e-02

1.82e-05

3s2

1S0

3s 3p

3P1

1

3

0

175747

618.4480

4.28e-02

1.50e+08

3.65e-05

4.08e-04

1.23e-03

3.49e-04

3s 3p

1P1

3p2

3P2

5

9

258972

420667

667.0760

3.30e-01

9.91e+08

8.93e-03

1.04e-02

1.46e-02

2.17e-03

3s 3p

1P1

3p2

1D2

5

6

258972

408880

768.4680

1.82e-01

4.08e+08

1.47e-05

2.01e-05

3.93e-05

4.99e-04

3s 3d

1D2

3p 3d

1D2

14

18

564613

694742

* 886.1760

3.98e+00

3.75e+09

2.32e-06

9.74e-06

2.34e-05

1.58e-03

3p 4p

3D3

3p 4d

3F4

57

70

1352524.8

1465369.2

* 943.7600

2.13e+00

2.27e+09

4.35e-06

7.87e-06

1.49e-05

9.82e-04

3s 4p

3P2

3s 4d

3D3

40

44

1136855.1

1242814.2

Created by Giulio Del Zanna on Wed Apr 16 17:44:33 2025