CHIANTI

An Atomic Database for Spectroscopic Diagnostics of Astrophysical Plasmas.


Ar XVIII - VERSION 6.0


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]=7.50, where the ion fraction peaks in ionization equilibrium. Only lines brighter than 0.001 the strongest line (at all densities) are retained.


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)

2.9175 1.86e-02 3.64e+12 2.10e-02 2.10e-02 2.10e-02 2.35e-02 1s 2S1/2 5p 2P3/2 1 19 0 34275886
2.9177 9.28e-03 3.64e+12 1.05e-02 1.05e-02 1.05e-02 1.17e-02 1s 2S1/2 5p 2P1/2 1 18 0 34273401
2.9873 3.87e-02 7.23e+12 4.70e-02 4.70e-02 4.70e-02 5.56e-02 1s 2S1/2 4p 2P3/2 1 12 0 33474635
2.9878 1.93e-02 7.21e+12 2.35e-02 2.35e-02 2.35e-02 2.77e-02 1s 2S1/2 4p 2P1/2 1 11 0 33469780
3.1502 1.05e-01 1.77e+13 1.44e-01 1.44e-01 1.44e-01 2.02e-01 1s 2S1/2 3p 2P3/2 1 7 0 31743613
3.1514 5.27e-02 1.77e+13 7.20e-02 7.20e-02 7.20e-02 1.01e-01 1s 2S1/2 3p 2P1/2 1 6 0 31732101
3.7311 5.55e-01 6.65e+13 1.00e+00 1.00e+00 1.00e+00 1.00e+00 1s 2S1/2 2p 2P3/2 1 4 0 26801622
3.7364 0.00e+00 9.08e+06 7.51e-03 7.51e-03 7.50e-03 1.38e-04 1s 2S1/2 2s 2S1/2 1 2 0 26764083
3.7365 2.77e-01 6.62e+13 5.00e-01 5.00e-01 5.00e-01 5.00e-01 1s 2S1/2 2p 2P1/2 1 3 0 26762782
14.8991 2.44e-01 1.83e+12 6.41e-04 6.41e-04 6.41e-04 1.26e-03 2p 2P1/2 4d 2D3/2 3 13 26762782 33474626
14.9019 1.37e-01 1.03e+12 1.34e-03 1.34e-03 1.34e-03 1.59e-03 2s 2S1/2 4p 2P3/2 2 12 26764083 33474635
14.9822 4.38e-01 2.17e+12 1.15e-03 1.15e-03 1.15e-03 2.26e-03 2p 2P3/2 4d 2D5/2 4 14 26801622 33476233
14.9963 1.22e-02 1.81e+11 1.14e-03 1.14e-03 1.14e-03 1.50e-03 2p 2P3/2 4s 2S1/2 4 10 26801622 33469945
20.0771 1.39e+00 5.76e+12 1.59e-03 1.59e-03 1.59e-03 5.71e-03 2p 2P1/2 3d 2D3/2 3 8 26762782 31743593
20.0823 5.80e-01 2.40e+12 3.06e-03 3.06e-03 3.06e-03 4.28e-03 2s 2S1/2 3p 2P3/2 2 7 26764083 31743613
20.1219 2.72e-02 2.24e+11 2.39e-03 2.39e-03 2.40e-03 3.86e-03 2p 2P1/2 3s 2S1/2 3 5 26762782 31732491
20.1288 2.90e-01 2.39e+12 1.52e-03 1.52e-03 1.52e-03 2.13e-03 2s 2S1/2 3p 2P1/2 2 6 26764083 31732101
20.2193 2.51e+00 6.81e+12 2.83e-03 2.83e-03 2.83e-03 1.02e-02 2p 2P3/2 3d 2D5/2 4 9 26801622 31747400
20.2349 2.78e-01 1.13e+12 3.10e-04 3.10e-04 3.11e-04 1.12e-03 2p 2P3/2 3d 2D3/2 4 8 26801622 31743593
20.2804 5.44e-02 4.41e+11 4.68e-03 4.68e-03 4.68e-03 7.54e-03 2p 2P3/2 3s 2S1/2 4 5 26801622 31732491

Created by Giulio Del Zanna on Fri Sep 4 09:44:09 2009