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Table 3

Relative intensities of Mg viii lines detected in the SERTS–89 active region spectrum.

Transition Wavelength (Å) SERTS–89 Present theory B&T

2s22p 2P–2s2p22P3/2 311.80 ...a 0.20 0.20
2s22p 2P–2s2p22P1/2 313.75 0.32 0.36 0.38
2s22p 2P–2s2p22P3/2 315.04 1.00 1.00 1.00
2s22p 2P–2s2p22P1/2 317.04 0.23 0.23 0.22
2s22p 2P–2s2p22S1/2 335.25 ...b 0.19 0.18
2s22p 2P–2s2p22S1/2 339.01 0.21 0.22 0.26
2s22p 2P–2s2p22D3/2 430.47 0.16 0.38 0.33
2s22p 2P–2s2p22D5/2 436.74 0.27 0.65 0.57

Notes.All intensities are listed relative to I(315.04 Å). B&T indicates the theoretical results of Bhatia & Thomas (1998).

(a)

Blend with Ni xv.

(b)

Masked by Fe xvi.

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