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Table 5

List of the strongest Fe viii lines.

i–j Levels I I I gf Aji (s-1) λ (Å)
Present Previous TZ11
2–49 3s2 3p6 3d 2D5/2–3s2 3p5 3d22D5/2 1.0 1.0 1.0 7.04 2.8×1011 168.172
1–50 3s2 3p6 3d 2D3/2–3s2 3p5 3d22D3/2 0.63 0.58 0.61 4.61 2.7×1011 167.486
2–48 3s2 3p6 3d 2D5/2–3s2 3p5 3d22P3/2 0.60 0.57 0.54 4.07 2.4×1011 168.544
1–47 3s2 3p6 3d 2D3/2–3s2 3p5 3d22P1/2 0.32 0.28 0.29 2.18 2.6×1011 168.929
2–65 3s2 3p6 3d 2D5/2–3s2 3p6 4f 2F7/2 0.13 0.16 0.12 3.51 1.7×1011 131.240
1–64 3s2 3p6 3d 2D3/2–3s2 3p6 4f 2F5/2 8.4×10-2 0.10 7.9×10-2 2.42 1.6×1011 130.941
1–49 3s2 3p6 3d 2D3/2–3s2 3p5 3d22D5/2 6.0×10-2 6.1×10-2 6.1×10-2 0.42 1.7×1010 167.654
2–50 3s2 3p6 3d 2D5/2–3s2 3p5 3d22D3/2 5.2×10-2 5.6×10-2 6.6×10-2 0.38 2.2×1010 168.003
1–48 3s2 3p6 3d 2D3/2–3s2 3p5 3d22P3/2 4.8×10-2 5.5×10-2 6.0×10-2 0.32 1.9×1010 168.024
2–215 3s2 3p6 3d 2D5/2–3s2 3p6 5f 2F7/2 2.6×10-2 2.7×10-2 2.3×10-2 1.12 8.0×1010 108.073
1–213 3s2 3p6 3d 2D3/2–3s2 3p6 5f 2F5/2 1.8×10-2 1.7×10-2 1.5×10-2 0.78 7.5×1010 107.869
2–46 3s2 3p6 3d 2D5/2–3s2 3p5 3d22F7/2 0.97 0.87 0.97 4.32 1.1×1011 185.213
1–45 3s2 3p6 3d 2D3/2–3s2 3p5 3d22F5/2 0.69 0.56 0.68 3.08 9.8×1010 186.598
2–43 3s2 3p6 3d 2D5/2–3s2 3p6 4p 2P3/2 0.24 0.28 0.19 0.56 2.5×1010 194.661
2–22 3s2 3p6 3d 2D5/2–3s2 3p5 3d22F7/2 0.22 0.10 0.17 5.8×10-2 9.1×108 231.097
2–6 3s2 3p6 3d 2D5/2–3s2 3p5 3d24D7/2 0.22 0.13 0.21 2.0×10-4 2.6×106 253.956
2–26 3s2 3p6 3d 2D5/2–3s2 3p5 3d22F7/2 0.20 0.13 0.12 0.16 2.7×109 224.305
1–42 3s2 3p6 3d 2D3/2–3s2 3p6 4p 2P1/2 0.15 0.16 0.15 0.34 3.0×1010 195.972
2–9 3s2 3p6 3d 2D5/2–3s2 3p5 3d24G7/2 0.14 8.3×10-2 9.4×10-2 1.8×10-5 2.5×105 241.78t
2–19 3s2 3p6 3d 2D5/2–3s2 3p5 3d24F7/2 0.14 8.3×10-2 8.2×10-2 6.5×10-3 1.0×108 233.09t
2–5 3s2 3p6 3d 2D5/2–3s2 3p5 3d24D5/2 0.13 7.1×10-2 9.0×10-2 2.3×10-4 4.0×106 255.350
1–18 3s2 3p6 3d 2D3/2–3s2 3p5 3d22F5/2 0.13 5.9×10-2 8.2×10-2 4.0×10-2 8.3×108 231.884
2–27 3s2 3p6 3d 2D5/2–3s2 3p5 3d22G7/2 0.13 5.7×10-2 7.6×10-2 1.1×10-2 1.9×108 222.190
2–13 3s2 3p6 3d 2D5/2–3s2 3p6 4s 2S1/2 0.12 7.9×10-2 0.11 − 4.0×105 238.329
1–33 3s2 3p6 3d 2D3/2–3s2 3p5 3d22F5/2 0.12 7.5×10-2 6.8×10-2 0.13 3.1×109 217.691
1–16 3s2 3p6 3d 2D3/2–3s2 3p5 3d22D5/2 0.10 − − 9.7×10-3 2.0×108 234.61t
2–29 3s2 3p6 3d 2D5/2–3s2 3p5 3d24D7/2 9.6×10-2 7.7×10-2 2.4×10-4 4.1×106 219.97t
2–24 3s2 3p6 3d 2D5/2–3s2 3p5 3d22P3/2 9.5×10-2 5.3×10-2 2.7×10-2 8.8×108 225.375
2–17 3s2 3p6 3d 2D5/2–3s2 3p5 3d24F9/2 9.4×10-2 6.7×10-2 − − 48. 233.31t
1–4 3s2 3p6 3d 2D3/2–3s2 3p5 3d24D3/2 8.6×10-2 4.3×10-2 5.5×10-2 1.1×10-4 2.8×106 255.110
1–13 3s2 3p6 3d 2D3/2–3s2 3p6 4s 2S1/2 8.0×10-2 7.2×10-2 − 2.7×105 237.291
1–11 3s2 3p6 3d 2D3/2–3s2 3p5 3d24G5/2 7.9×10-2 4.4×10-2 4.6×10-4 9.0×106 239.4t
2–40 3s2 3p6 3d 2D5/2–3s2 3p5 3d22G7/2 7.6×10-2 3.6×10-2 4.3×10-2 2.6×10-2 5.2×108 204.704
2–10 3s2 3p6 3d 2D5/2–3s2 3p5 3d24P5/2 6.9×10-2 6.1×10-2 1.8×10-4 3.5×106 241.1t
2–41 3s2 3p6 3d 2D5/2–3s2 3p5 3d22P3/2 6.9×10-2 5.1×10-2 0.11 0.11 5.0×109 197.362
1–3 3s2 3p6 3d 2D3/2–3s2 3p5 3d24D1/2 4.3×10-2 2.1×10-2 2.7×10-2 1.3×10-5 6.6×105 255.684
43–52 3s2 3p6 4p 2P3/2–3s2 3p6 4d 2D5/2 0.11 0.12 7.6×10-2 2.37 5.1×109 721.256
42–51 3s2 3p6 4p 2P1/2–3s2 3p6 4d 2D3/2 6.7×10-2 6.8×10-2 6.2×10-2 1.48 5.0×109 697.156
41–52 3s2 3p5 3d22P3/2–3s2 3p6 4d 2D5/2 2.0×10-2 1.8×10-2 4.3×10-2 0.41 9.6×108 686.441
43–51 3s2 3p6 4p 2P3/2–3s2 3p6 4d 2D3/2 1.1×10-2 1.1×10-2 7.8×10-3 0.26 8.4×108 723.762

Notes. Columns 3–5 show the relative intensities (photons) I = NjAji/Ne of the strongest lines, relative to the strongest transition (in the EUV). The intensities were calculated at an electron density of 109 cm-3 and log T [ K ] = 5.65 (T = 4.5 × 105 K), the temperature of peak ion abundance in equilibrium. Column 3 shows the present values, Col. 4 those of the combined adjusted R-matrix (Del Zanna 2009b) + DW data (O’Dwyer et al. 2012), and Col. 5 those of the combined model based on Tayal & Zatsarinny (2011) data (TZ11). Columns 6 and 7 show the gf and A values calculated in this work with TECs. The λ are our wavelengths, observed unless a ‘t’ is present.

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