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Table 5

Occurrence of frequencies in the diagrams with total power of the datasets, organized per year.

Spectral line Oct. 1989 Oct. 2012 Oct. 2013
Hα 6563 ν 3 ν2, ν1
Hβ 4861 ν 3 ν2, ν1
Hγ 4341 ν 3 ν2, ν1, ν8
Hδ 4102 ν3, ν7 ν8, ν2
He i 5876 ν3, ν8, ν7 ν3, ν1, ν6, ν2
He i 4713 NRP1, NRP2 − −
He i 4471 ν 3 ν6, ν1, ν2
He i 4026 − ν 6
He ii 4686 ν 4 ν5, ν3, νH ν0, ν4
He ii 5412 ν9, ν7 ν10, ν9, ν6
He ii 4542 − ν10, ν6
He ii 4200 − ν 6
Si iv 1394 ν 0

Notes.The frequencies are given in Table 4, and marked where appropriate in Figs. 2, 4, 5, 14, and Appendix B. A horizontal dash indicates the absence of power above the noise level. In each column the frequency with the strongest power is listed first.

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