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Table D.1

Coefficients Ci,j shown in Eq. (D.1) that we used to model the bisectors of the three iron lines at 6297.8, 6301.5, and 6302.5 Å in the quiet photosphere and in a facula region.

Quiet photosphere Faculae
Terms 6297.8 Å 6301.5 Å 6302.5 Å 6297.8 Å 6301.5 Å 6302.5 Å
constant −7.77 −6.54 −0.60 −2.03 −9.49 −18.11
             
μ 3.35 4.51 −7.15 30.41 18.15 43.42
             
μ2 8.62 39.93 29.13 −91.58 −41.86 −67.89
             
μ3 −3.74 −72.46 −48.87 116.11 64.95 136.39
             
μ4 −22.77 37.67 28.43 −114.79 −65.84 −180.56
             
μ5 29.82 5.40 1.42 100.20 48.34 136.06
             
μ6 −10.28 −7.06 −4.61 −39.97 −16.57 −43.81
             
f 68.09 60.37 8.61 14.35 84.10 137.63
             
f ⋅ μ −43.42 −89.10 25.23 −146.89 −113.71 −277.55
             
f ⋅ μ2 −40.46 −93.56 −78.08 379.01 173.26 221.14
             
f ⋅ μ3 86.84 225.83 137.23 −309.45 −180.82 −231.28
             
f ⋅ μ4 −50.26 −146.86 −93.92 78.95 72.43 140.08
             
f ⋅ μ5 6.02 32.37 23.01 1.81 −8.09 −29.49
             
f2 −211.77 −195.13 −21.91 −27.87 −276.11 −402.35
             
f2 ⋅ μ 138.67 339.15 −63.71 220.83 264.86 713.25
             
f2 ⋅ μ2 9.70 −39.32 46.47 −557.60 −247.76 −304.21
             
f2 ⋅ μ3 −61.95 −108.82 −63.23 367.89 200.37 171.68
             
f2 ⋅ μ4 29.34 42.38 21.94 −68.81 −49.55 −56.92
             
f3 320.97 302.32 24.69 23.06 447.00 583.29
             
f3 ⋅ μ −188.31 −513.81 114.60 −91.70 −311.38 −936.23
             
f3 ⋅ μ2 33.14 135.83 −6.77 304.97 125.34 196.17
             
f3 ⋅ μ3 −1.04 6.31 7.85 −120.12 −57.90 −33.64
             
f4 −239.55 −225.28 −11.70 −7.51 −358.94 −419.98
             
f4 ⋅ μ 111.87 343.85 −109.78 −47.17 192.28 621.77
             
f4 ⋅ μ2 −10.96 −58.89 0.41 −45.97 −15.88 −53.15
             
f5 70.77 64.15 1.08 0.78 114.64 120.32
             
f5 ⋅ μ −24.54 −83.02 40.58 33.76 −50.79 −165.70
f0 0.382 0.296 0.374 0.411 0.350 0.434
β 0.129 0.143 0.153 0.149 0.078 0.141

Notes. At the bottom of the table, we display the coefficients f0 and β that appear in Eq. (D.2) and were used to model the weakening of the lines away from disc centre.

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