Open Access

Table A.1.

List of emission lines used in this work, their wavelengths and ionisation potential.

Emission line λrest(Å) Ionisation potential (eV)
[S II] 6718,32 10.4
[N II] 6584,48 14.5
Hα 6563 13.6
[O III] 5008,4961 35.1
Hβ 4861 13.6
He II 4686 54.4
[O II] 3727,29 13.6
[Ne III] 3689 41.0
[Ne V] 3427 97.2
[Ne IV] 2422,24 63.4
C III] 1907,09 24.4
He II 1640 54.4
C IV 1548,1550 47.9
[N V] 1239,42 77.5

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