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Table 5.

Spectral features detected in the Mg region (7.5–10 Å).

Line BB Ref. wavelength Det. wavelength Line flux Velocity
α (Å) (Å) (ph s−1 cm−2 × 10−5) (km s−1)
Al XII Heα 7 7.7573 (a) 0.9 ± 0.3 (b)
Mg XI Heβ 48 7.850 (c) 7.8565 ± 0.0017 1.2 ± 0.3 250 ± 70
Fe XXIV 2.9 7.985 (d)
Mg XII Lyα 220 8.42101 (e) 8.4226 ± 0.0011 (f) 180 ± 40
Mg XIr 89 9.16896 (a) 9.1728 ± 0.0015 3.7 ± 0.8 (g) 130 ± 50
Mg XIi 89 9.2312 (a) 9.2343 ± 0.0015 (a) = v(Mg XI r)
Mg XIf 89 9.3143 (a) 9.3188 ± 0.0015 (a) 1.5 ± 0.4 = v(Mg XI r)
Fe XX(h) 3.4 9.282 (i) 9.290 ± 0.004 1.0 ± 0.4 260 ± 130
Ne X Lyδ 4.4 9.481 (e) 9.485 ± 0.006 0.6 ± 0.3 130 ± 190
Ne X Lyγ 15 9.708 (e) 9.708 ± 0.005 (j) 0 ± 150

Notes. For each of them, we report the detection parameter α, the best-fit values (wavelength and line flux), and the Doppler velocities, computed with respect to the reference wavelength from the literature. Line widths were fixed to 0.003 Å if not stated otherwise.

(b)

Line width of Å.

(f)

For this line, the best-fit line width value was (7.4±1.2) × 10−3 Å.

(g)

Line width of 0.011 ± 0.003 Å.

(h)

Close to the same wavelength, there is also the Ne X Lyζ emission line at 9.291 Å, but with a lower intensity ratio. In this case, the resulting Doppler velocity would be (−32 ± 129) km s−1.

(i)

Reference wavelength from AtomDB.

(j)

Line width of Å.

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