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Table 1.

Polarisation sensitivity indices sQ and sV (Landi Degl’Innocenti & Landolfi 2004) for a selection of spectral lines.

Atom λ [Å] log(gf) L1 L2 g1 g2 s d I(λ0) [AU] dc sQ sV
Fe I 5247.0501 −4.946 5D2 7D 1.50 1.75 2.00 18.00 −6.00 3.98 2808 0.719 1.509 3.152
Fe I 5250.2086 −4.938 5D0 7D 0.00 3.00 3.00 2.00 −2.00 9.00 2841 0.715 2.252 7.094
Fe I 5250.6456 −2.181 5P2 5P 1.83 1.67 1.50 18.00 −6.00 2.24 2028 0.796 1.254 1.967
Fe I 6173.3352 −2.880 5P1 5D 2.50 0.00 2.50 2.00 2.00 6.25 3738 0.626 1.933 5.966
Fe I 6301.5008 −0.718 5P 5D2 1.83 1.50 1.67 12.00 0.00 2.52 2780 0.722 1.520 2.890
Fe I 6302.4932 −1.131* 5P 5D0 2.50 0.00 2.50 2.00 2.00 6.25 3443 0.656 2.066 6.511
Ni I 6767.7700 −2.170 1S0 3P 0.00 1.50 1.50 2.00 −2.00 2.25 3630 0.637 1.293 2.626
Fe I 6820.3715 −1.290 5P 5P2 2.50 1.83 1.50 8.00 −4.00 2.18 6453 0.355 0.726 1.439
Fe I 6842.6854 −1.290 5P 5P1 2.50 2.50 2.50 4.00 0.00 6.25 6589 0.341 1.167 3.992
Fe I 8468.4069 −2.072 5P1 5P 2.50 2.50 2.50 4.00 0.00 6.25 3643 0.636 2.691 11.40
Fe I 8514.0716 −2.229 5P2 5P 1.83 1.83 1.83 12.00 0.00 3.36 3813 0.619 1.928 6.027
Fe I 10783.051 −2.571* 3P0 3P 0.00 1.50 1.50 2.00 −2.00 2.25 6877 0.312 1.010 3.268
Si I 10786.856 −0.365 3P 3P0 1.50 0.00 1.50 2.00 2.00 2.25 3906 0.609 1.972 6.382
Fe I 15534.246 −0.585* 5D1 5P 1.50 1.83 2.00 8.00 −4.00 3.98 6606 0.339 2.109 13.04
Fe I 15542.083 −0.457* 5D1 5D 1.50 0.00 1.50 2.00 2.00 2.25 7157 0.284 1.326 6.181
Fe I 15648.514 −0.714* 7D1 7D 3.00 3.00 3.00 4.00 0.00 9.00 7003 0.300 2.814 26.42

Notes. From left to right, we show the atomic species, the line core wavelength in air, log(gf), lower and upper level spectroscopic notation, the Landé factor of the lower and upper level, the effective first-order Landé factor, s and d (see Quintero Noda et al. 2018), the effective second-order Landé factor, the line core intensity (extracted from the solar atlas of Delbouille et al. 1973), the normalised line depth dc, and the circular and linear polarisation sensitivity index. We define λref = 5000 Å, and the continuum corresponds to Ic = 10 000 (in arbitrary units, AU) for all the lines.

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