CHIANTI

An Atomic Database for Spectroscopic Diagnostics of Astrophysical Plasmas.


Fe XXI - VERSION 4.2


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)

180.8518 2.24e-03 1.52e+08 1.06e-03 1.06e-03 2.75e-03 9.93e-04 2s2.2p2 1S0/2 2s.2p3 3P2/2 5 11 371980 924920
187.6954 1.07e-03 4.05e+07 7.81e-05 8.01e-05 2.38e-03 5.66e-04 2s2.2p2 1D4/2 2s.2p3 3D4/2 4 8 244561 777340
187.9247 2.99e-03 1.88e+08 1.10e-02 1.10e-02 5.63e-03 1.53e-03 2s2.2p2 1D4/2 2s.2p3 3D2/2 4 7 244561 776690
242.0732 1.52e-03 3.47e+07 7.47e-03 7.51e-03 2.98e-02 6.08e-04 2s2.2p2 3P2/2 2s.2p3 5S4/2 2 6 73851 486950
247.0910 1.15e-03 4.19e+07 1.87e-03 1.87e-03 9.54e-04 2.59e-04 2s2.2p2 1S0/2 2s.2p3 3D2/2 5 7 371980 776690
270.5662 1.84e-03 3.36e+07 6.47e-03 6.51e-03 2.58e-02 5.27e-04 2s2.2p2 3P4/2 2s.2p3 5S4/2 3 6 117354 486950
335.4259 0.00e+00 1.37e+05 1.29e-02 1.30e-02 1.20e-02 1.89e-07 2s2.2p2 3P2/2 2s2.2p2 1S0/2 2 5 73851 371980
* 471.3388 4.41e-01 1.47e+09 1.11e-04 1.16e-04 4.37e-03 2.58e-03 2s2.2p3p 3D6/2 2s2.2p3d 3F8/2 30 43 8020172 8232334
585.7898 0.00e+00 1.55e+04 1.00e-02 1.02e-02 6.28e-03 7.55e-08 2s2.2p2 3P2/2 2s2.2p2 1D4/2 2 4 73851 244561
786.1217 0.00e+00 1.48e+04 7.13e-03 7.23e-03 4.47e-03 5.37e-08 2s2.2p2 3P4/2 2s2.2p2 1D4/2 3 4 117354 244561
1354.0803 0.00e+00 6.55e+03 1.13e-01 1.13e-01 1.33e-03 1.08e-08 2s2.2p2 3P0/2 2s2.2p2 3P2/2 1 2 0 73851
2298.6963 0.00e+00 8.54e+02 3.20e-02 3.19e-02 1.52e-04 1.31e-09 2s2.2p2 3P2/2 2s2.2p2 3P4/2 2 3 73851 117354

Created by Giulio Del Zanna on Fri Aug 5 13:55:04 2005