Table 4: Results for the brightest lines in Fe X. The lines are grouped in three wavelength ranges (150-300; 300-900 ; 900-20000 Å), and are displayed in decreasing order of intensity. Columns 2 and 3 show the relative line intensities (photons) $Int=N_{j} A_{ji}/N_{\rm e}$ calculated at T=1 MK and 108, 1012 cm-3, normalised to the intensity of the brightest 1-30 line ( $6.6 \times 10^{-9}$). Columns 4 and 5 show the gf and A values calculated in this work. Column 6 shows, for comparison, the NIST A values. The last two columns show the wavelengths corresponding to the best energies $E_{\rm best}$ of Table 3 and the NIST values. The uncertainties on the proposed wavelengths are derived from the uncertainties assigned to the energies.

i-j		 Int Int gf Aji Aji T Terms $\lambda_{\rm best}$(Å) $\lambda$(Å)
  $1.0 \times 10^{8}$ $1.0 \times 10^{12}$     NIST       NIST

1-30		 1.0 0.60 5.01 $1.8 \times 10^{11}$ $1.8 \times 10^{11}$ E1 c1 2P $_{3/2}^{\rm o}$- c3 2D $_{5/2}^{\rm e}$ 174.531 $\pm $ 0.002 174.534
1-28 0.55 0.34 2.83 $1.5 \times 10^{11}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 2P $_{3/2}^{\rm e}$ 177.240 $\pm $ 0.002 -
1-27 0.22 0.17 1.29 $1.3\times 10^{11}$ $1.2\times 10^{11}$ E1 c1 2P $_{3/2}^{\rm o}$- c3 2S $_{1/2}^{\rm e}$ 184.537 $\pm $ 0.002 184.543
1-5 0.14 $1.9\times 10^{-4}$ - 47. 74. M2 c1 2P $_{3/2}^{\rm o}$- c3 4D $_{7/2}^{\rm e}$ 257.263 $\pm $ 0.003 257.262
2-27 $6.5 \times 10^{-2}$ $5.0\times 10^{-2}$ 0.40 $3.7 \times 10^{10}$ $4.2 \times 10^{10}$ E1 c1 2P $_{1/2}^{\rm o}$- c3 2S $_{1/2}^{\rm e}$ 190.037 $\pm $ 0.002 190.043
2-29 $5.6\times 10^{-2}$ 0.12 1.12 $1.1\times 10^{11}$ - E1 c1 2P $_{1/2}^{\rm o}$- c3 2P $_{1/2}^{\rm e}$ 180.441 $\pm $ 0.007 -
2-31 $4.1\times 10^{-2}$ 0.33 3.17 $1.7\times 10^{11}$ $1.7\times 10^{11}$ E1 c1 2P $_{1/2}^{\rm o}$- c3 2D $_{3/2}^{\rm e}$ 175.263 $\pm $ 0.002 175.266
1-4 $3.2 \times 10^{-2}$ $3.3 \times 10^{-2}$ $2.6 \times 10^{-4}$ $4.4\times 10^{6}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 4D $_{5/2}^{\rm e}$ 257.259 $\pm $ 0.003 -
1-19 $2.7 \times 10^{-2}$ $3.6 \times 10^{-2}$ $3.0\times 10^{-3}$ $6.6 \times 10^{7}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 4P $_{5/2}^{\rm e}$ 225.856 $\pm $ 0.253 -
1-17 $2.5 \times 10^{-2}$ $3.1\times 10^{-2}$ $6.9 \times 10^{-3}$ $1.5 \times 10^{8}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 2D $_{5/2}^{\rm e}$ 227.208 $\pm $ 0.258 -
1-22 $2.3\times 10^{-2}$ $3.4\times 10^{-2}$ $1.0\times 10^{-3}$ $2.3 \times 10^{7}$ $8.9\times 10^{6}$ E1 c1 2P $_{3/2}^{\rm o}$- c3 2F $_{5/2}^{\rm e}$ 220.247 $\pm $ 0.024 (220.1)
1-29 $1.8\times 10^{-2}$ $3.8\times 10^{-2}$ 0.33 $3.6 \times 10^{10}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 2P $_{1/2}^{\rm e}$ 175.475 $\pm $ 0.006 -
2-28 $1.5 \times 10^{-2}$ $9.4 \times 10^{-3}$ $8.3\times 10^{-2}$ $4.2 \times 10^{9}$ - E1 c1 2P $_{1/2}^{\rm o}$- c3 2P $_{3/2}^{\rm e}$ 182.307 $\pm $ 0.002 -
1-11 $1.7\times 10^{-2}$ $2.1\times 10^{-2}$ $1.9\times 10^{-3}$ $3.9\times 10^{7}$ $2.2\times 10^{7}$ E1 c1 2P $_{3/2}^{\rm o}$- c3 4F $_{5/2}^{\rm e}$ 234.599 $\pm $ 0.275 234.322
1-23 $1.4 \times 10^{-2}$ $2.8\times 10^{-2}$ $5.6\times 10^{-3}$ $1.5 \times 10^{8}$ $1.1\times 10^{8}$ E1 c1 2P $_{3/2}^{\rm o}$- c3 2F $_{5/2}^{\rm e}$ 207.449 $\pm $ 0.022 (207.6)
1-18 $1.5 \times 10^{-2}$ $1.2\times 10^{-4}$ - 27. - M2 c1 2P $_{3/2}^{\rm o}$- c3 2F $_{7/2}^{\rm e}$ 226.840 $\pm $ 0.003 -
1-13 $1.6 \times 10^{-2}$ $1.8\times 10^{-2}$ $1.3\times 10^{-2}$ $3.8\times 10^{8}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 2P $_{3/2}^{\rm e}$ 236.494 $\pm $ 0.279 -
2-12 $1.3\times 10^{-2}$ $1.6 \times 10^{-2}$ $2.3\times 10^{-4}$ $ 6.4\times 10^{6}$ - E1 c1 2P $_{1/2}^{\rm o}$- c3 4F $_{3/2}^{\rm e}$ 242.765 $\pm $ 0.295 -
1-6 $1.3\times 10^{-2}$ $1.6 \times 10^{-2}$ $3.0\times 10^{-4}$ $7.7 \times 10^{6}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 4D $_{3/2}^{\rm e}$ 256.398 $\pm $ 0.033 -
2-9 $1.2\times 10^{-2}$ $1.2\times 10^{-2}$ $4.4\times 10^{-3}$ $2.4\times 10^{8}$ - E1 c1 2P $_{1/2}^{\rm o}$- c3 2P $_{1/2}^{\rm e}$ 250.900 $\pm $ 0.315 -
1-15 $1.1 \times 10^{-2}$ $1.3\times 10^{-2}$ $7.3 \times 10^{-3}$ $2.3\times 10^{8}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 2D $_{3/2}^{\rm e}$ 230.900 $\pm $ 0.264 -
1-26 $8.7\times 10^{-3}$ $2.1\times 10^{-2}$ $8.1\times 10^{-3}$ $2.4\times 10^{8}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 2D $_{5/2}^{\rm e}$ 193.715 $\pm $ 0.019 -
1-14 $9.3\times 10^{-3}$ $8.6\times 10^{-3}$ $4.4\times 10^{-3}$ $2.7\times 10^{8}$ - E1 c1 2P $_{3/2}^{\rm o}$- c3 4P $_{1/2}^{\rm e}$ 230.667 $\pm $ 0.266 -
2-16 $8.0 \times 10^{-3}$ $1.5 \times 10^{-2}$ $2.8 \times 10^{-4}$ $8.5\times 10^{6}$ - E1 c1 2P $_{1/2}^{\rm o}$- c3 4P $_{3/2}^{\rm e}$ 236.695 $\pm $ 0.280 -
1-25 $5.7\times 10^{-3}$ $8.4\times 10^{-3}$ $1.6 \times 10^{-2}$ $7.2\times 10^{8}$ $1.8\times 10^{8}$ E1 c1 2P $_{3/2}^{\rm o}$- c3 2D $_{3/2}^{\rm e}$ 195.316 $\pm $ 0.191 195.389
2-15 $6.1\times 10^{-3}$ $7.6 \times 10^{-3}$ $4.5\times 10^{-3}$ $1.3\times 10^{8}$ - E1 c1 2P $_{1/2}^{\rm o}$- c3 2D $_{3/2}^{\rm e}$ 238.743 $\pm $ 0.285 -

1-3		 $8.2\times 10^{-2}$ $7.0 \times 10^{-2}$ 0.12 $3.2\times 10^{9}$ $3.9 \times 10^{9}$ E1 c1 2P $_{3/2}^{\rm o}$- c2 2S $_{1/2}^{\rm e}$ 345.738 $\pm $ 0.006 345.723
2-3 $3.6 \times 10^{-2}$ $3.1\times 10^{-2}$ $5.7 \times 10^{-2}$ $1.4 \times 10^{9}$ $1.7 \times 10^{9}$ E1 c1 2P $_{1/2}^{\rm o}$- c2 2S $_{1/2}^{\rm e}$ 365.560 $\pm $ 0.008 365.543
18-43 $2.0 \times 10^{-2}$ $1.4 \times 10^{-2}$ 0.18 $1.3 \times 10^{9}$ - E1 c3 2F $_{7/2}^{\rm e}$- c4 2F $_{7/2}^{\rm o}$ 337.235 $\pm $ 0.040 -
21-43 $7.9 \times 10^{-3}$ $5.4 \times 10^{-3}$ $7.7\times 10^{-2}$ $5.2\times 10^{8}$ - E1 c3 2G $_{7/2}^{\rm e}$- c4 2F $_{7/2}^{\rm o}$ 349.302 $\pm $ 0.043 -
13-44 $6.7\times 10^{-3}$ $4.3\times 10^{-3}$ $7.6\times 10^{-2}$ $8.6\times 10^{8}$ - E1 c3 2P $_{3/2}^{\rm e}$- c4 2D $_{5/2}^{\rm o}$ 314.055 $\pm $ 0.983 -
22-44 $6.3 \times 10^{-3}$ $4.0\times 10^{-3}$ $8.9\times 10^{-2}$ $8.1\times 10^{8}$ - E1 c3 2F $_{5/2}^{\rm e}$- c4 2D $_{5/2}^{\rm o}$ 348.160 $\pm $ 0.665 -
5-35 $2.9 \times 10^{-3}$ $6.3 \times 10^{-3}$ 0.45 $2.8\times 10^{9}$ - E1 c3 4D $_{7/2}^{\rm e}$- c4 4F $_{9/2}^{\rm o}$ 327.314 $\pm $ 0.540 -

1-2		 0.88 $2.7 \times 10^{-3}$ - 69. 69. M1 c1 2P $_{3/2}^{\rm o}$- c1 2P $_{1/2}^{\rm o}$ 6376.3 $\pm $ 0.4 6374.51
5-8 $6.4\times 10^{-2}$ $5.0\times 10^{-5}$ - 12. 12. M1 c3 4D $_{7/2}^{\rm e}$- c3 4F $_{9/2}^{\rm e}$ 3454.9 $\pm $ 1.2 3454.0
5-18 $1.4 \times 10^{-2}$ $1.1\times 10^{-4}$ - 25. - M1 c3 4D $_{7/2}^{\rm e}$- c3 2F $_{7/2}^{\rm e}$ 1918.2 $\pm $ 0.4 -
8-20 $2.2\times 10^{-2}$ $2.3\times 10^{-4}$ - 57. 55. M1 c3 4F $_{9/2}^{\rm e}$- c3 2G $_{9/2}^{\rm e}$ 3021.0 $\pm $ 0.9 3020.5
5-24 $6.8\times 10^{-3}$ $1.4 \times 10^{-4}$ - 67. 65. M1 c3 4D $_{7/2}^{\rm e}$- c3 2F $_{7/2}^{\rm e}$ 1028.0 $\pm $ 0.1 1028.02
5-10 $1.7\times 10^{-2}$ $2.4\times 10^{-5}$ - 8.8 8.5 M1 c3 4D $_{7/2}^{\rm e}$- c3 4F $_{7/2}^{\rm e}$ 2934.5 $\pm $ 1.3 2932.9
8-24 $7.6 \times 10^{-3}$ $1.6\times 10^{-4}$ - 74. 70. M1 c3 4F $_{9/2}^{\rm e}$- c3 2F $_{7/2}^{\rm e}$ 1463.5 $\pm $ 0.2 1463.49
5-21 $5.8 \times 10^{-3}$ $6.6\times 10^{-5}$ - 19. 20. M1 c3 4D $_{7/2}^{\rm e}$- c3 2G $_{7/2}^{\rm e}$ 1603.2 $\pm $ 0.3 1603.21
4-24 $1.8 \times 10^{-3}$ $3.8\times 10^{-5}$ - 18. 18. M1 c3 4D $_{5/2}^{\rm e}$- c3 2F $_{7/2}^{\rm e}$ 1028.1 $\pm $ 0.1 1028.02
4-21 $2.8\times 10^{-3}$ $3.2\times 10^{-5}$ - 9.2 8.9 M1 c3 4D $_{5/2}^{\rm e}$- c3 2G $_{7/2}^{\rm e}$ 1603.3 $\pm $ 0.3 1603.21
10-21 $5.3\times 10^{-3}$ $6.0\times 10^{-5}$ - 18. 14. M1 c3 4F $_{7/2}^{\rm e}$- c3 2G $_{7/2}^{\rm e}$ 3533.8 $\pm $ 1.9 3533.9
8-18 $5.6\times 10^{-3}$ $4.3 \times 10^{-5}$ - 9.9 - M1 c3 4F $_{9/2}^{\rm e}$- c3 2F $_{7/2}^{\rm e}$ 4312.8 $\pm $ 1.9 -
4-18 $2.4\times 10^{-3}$ $1.9\times 10^{-5}$ - 4.3 - M1 c3 4D $_{5/2}^{\rm e}$- c3 2F $_{7/2}^{\rm e}$ 1918.4 $\pm $ 0.4 -
5-20 $1.9\times 10^{-3}$ $2.0\times 10^{-5}$ - 4.9 4.0 M1 c3 4D $_{7/2}^{\rm e}$- c3 2G $_{9/2}^{\rm e}$ 1611.7 $\pm $ 0.3 1611.81
10-18 $3.9 \times 10^{-3}$ $3.0\times 10^{-5}$ - 6.9 - M1 c3 4F $_{7/2}^{\rm e}$- c3 2F $_{7/2}^{\rm e}$ 5538.9 $\pm $ 4.6 -


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