CHIANTI

An Atomic Database for Spectroscopic Diagnostics of Astrophysical Plasmas.


Fe XX - VERSION 5.1


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)

* 371.7183 3.83e-01 2.31e+09 6.43e-04 6.44e-04 1.95e-03 1.87e-03 2s2.2p2(3P).3p 4P5/2 2s2.2p2(3P).3d 4D7/2 29 51 7475090.9 7744112.3
384.2097 0.00e+00 3.01e+04 2.15e-02 2.15e-02 1.14e-02 1.10e-07 2s2.2p3 4S3/2 2s2.2p3 2P1/2 1 4 0 260275
* 392.2221 6.90e-01 2.99e+09 9.00e-05 9.22e-05 2.71e-03 2.50e-03 2s2.2p2(1D).3p 2F7/2 2s2.2p2(1D).3d 2G9/2 40 68 7640024.8 7894982.8
* 402.4035 6.44e-01 2.65e+09 2.02e-03 2.02e-03 5.19e-03 4.54e-03 2s2.2p2(3P).3p 4D7/2 2s2.2p2(3P).3d 4F9/2 31 52 7497837.5 7746344.7
404.6575 6.34e-01 3.01e+09 1.16e-03 1.16e-03 2.55e-03 2.32e-03 2s2.2p2(3P).3s 4P5/2 2s2.2p2(3P).3p 4D7/2 19 31 7256583 7503706
541.3375 0.00e+00 4.31e+04 1.03e-02 1.04e-02 2.12e-02 2.33e-07 2s2.2p3 2D3/2 2s2.2p3 2P3/2 2 5 138589 323317
567.8666 0.00e+00 1.15e+03 6.23e-02 6.21e-02 6.02e-04 6.28e-09 2s2.2p3 4S3/2 2s2.2p3 2D5/2 1 3 0 176098
679.2614 0.00e+00 1.22e+04 2.32e-03 2.34e-03 4.77e-03 5.24e-08 2s2.2p3 2D5/2 2s2.2p3 2P3/2 3 5 176098 323317
721.5593 0.00e+00 1.47e+04 8.61e-02 8.61e-02 4.06e-03 3.99e-08 2s2.2p3 4S3/2 2s2.2p3 2D3/2 1 2 0 138589
821.7887 0.00e+00 5.92e+03 1.97e-03 1.98e-03 1.05e-03 1.01e-08 2s2.2p3 2D3/2 2s2.2p3 2P1/2 2 4 138589 260275
2666.0317 0.00e+00 4.24e+02 4.89e-03 4.87e-03 4.73e-05 4.93e-10 2s2.2p3 2D3/2 2s2.2p3 2D5/2 2 3 138589 176098

Created by Giulio Del Zanna on Wed Sep 14 15:45:34 2005