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Table 7

List of strongest Fe viii lines in the 50–170 Å range.

i–j Levels Int Int gf Aji(s-1) λexp(Å) λth(Å)
108 1012
2–49 3p63d 2D5/2–3p53d22D5/2 8.6 8.5 7.06 2.8  ×  1011 168.172 159.73 (-8.4)
1–50 3p63d 2D3/2–3p53d22D3/2 6.1 5.0 4.56 2.7  ×  1011 167.486 159.20 (-8.3)
2–48 3p63d 2D5/2–3p53d22P3/2 5.0 4.9 3.82 2.2  ×  1011 168.544 162.16 (-6.4)
1–47 3p63d 2D3/2–3p53d22P1/2 3.1 2.5 2.10 2.4  ×  1011 168.929 162.43 (-6.5)
2–54 3p63d 2D5/2–3p64f 2F7/2 1.3 1.3 4.30 2.1  ×  1011 131.240 129.02 (-2.2)
1–53 3p63d 2D3/2–3p64f 2F5/2 1.0 0.82 2.97 1.9  ×  1011 130.941 128.71 (-2.2)
2–50 3p63d 2D5/2–3p53d22D3/2 0.59 0.48 0.44 2.6  ×  1010 168.003 159.69 (-8.3)
1–49 3p63d 2D3/2–3p53d22D5/2 0.52 0.52 0.43 1.7  ×  1010 167.654 159.24 (-8.4)
1–48 3p63d 2D3/2–3p53d22P3/2 0.48 0.47 0.37 2.2  ×  1010 168.024 161.65 (-6.4)
2–84 3p63d 2D5/2–3p6 5f 2F7/2 0.20 0.20 1.40 9.9  ×  1010 108.077 108.13 (0.1)
1–83 3p63d 2D3/2–3p6 5f 2F5/2 0.16 0.13 0.98 9.3  ×  1010 107.868 107.92 (0.0)
2–53 3p63d 2D5/2–3p64f 2F5/2 7.3  ×  10-2 5.9  ×  10-2 0.22 1.4  ×  1010 131.257 129.03 (-2.2)
2–93 3p63d 2D5/2–3p6 6f 2F7/2 6.8  ×  10-2 6.6  ×  10-2 0.73 6.3  ×  1010 98.548 98.68 (0.1)
1–92 3p63d 2D3/2–3p6 6f 2F5/2 5.1  ×  10-2 4.2  ×  10-2 0.51 5.8  ×  1010 98.371 98.49 (0.1)
2–104 3p63d 2D5/2–3p6 7f 2F7/2 3.1  ×  10-2 3.0  ×  10-2 0.51 4.9  ×  1010 93.616 93.72 (0.1)
1–103 3p63d 2D3/2–3p6 7f 2F5/2 2.3  ×  10-2 1.9  ×  10-2 0.35 4.5  ×  1010 93.469 93.56 (0.1)

Notes. The relative intensities (photons) Int = NjAji/Ne are normalised to the strongest transition and were calculated at electron densities of 108 and 1012 cm-3 and log T[K] = 5.6. Weighted oscillator strengths gf and A-values (s-1) are shown. Experimental λexp (Å) and theoretical λth (Å) wavelengths are included. Values in parentheses indicate differences between the observed and theoretical wavelengths.

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