Table 5: Reddening-corrected H $\beta$ luminosity and results from dereddened line ratios.
ESO 103-G035 TXS 2226-184 IC 1481

$L_{\rm H\beta}$ ^a (10⁴⁰ erg s^-1) 2.65 0.49 0.59

$A_{\rm V}$ ^a 1.9 1. 0.47

$n_{\rm e}$ ^a (cm^-3) 600 $\pm$ 50 550 $\pm$ 100 -

T^b (K) 13 000 $\pm$ 500 - -

$[\mbox{O {\sc iii}}]~\lambda5007/[\mbox{O {\sc ii}}]~\lambda3727$ 3.69 0.48 0.3

$[\mbox{O {\sc iii}}]~\lambda5007/[\mbox{O {\sc i}}]~\lambda6300$ 10.15 2.08 1.23

$[\mbox{O {\sc i}}]~\lambda6300/$ H $\alpha$ 0.3 0.46 0.27

$[\mbox{S {\sc ii}}]~\lambda6716+\lambda6731/$ H $\alpha$ 0.67 0.66 0.79^c

$[\mbox{N {\sc ii}}]~\lambda6583/$ H $\alpha$ 1.05 1.15 0.65

^a Derived from the central region ( $2\hbox{$^{\prime\prime}$ }\times 2\hbox{$^{\prime\prime}$ }$ ).
^b Derived from the central row ( $0\hbox{$.\!\!^{\prime\prime}$ }68 \times 2\hbox{$^{\prime\prime}$ }$ ).
^c Using an estimated ratio of [S II] $\lambda6716/\lambda6731 \sim 1.07$ for a typical $n_{\rm e}$ of $\sim$ 550 cm^-3.

**Table 5:** Reddening-corrected H $\beta$ luminosity and results from dereddened line ratios.
	ESO 103-G035	TXS 2226-184	IC 1481
$L_{\rm H\beta}$ ^a (10⁴⁰ erg s^-1)	2.65	0.49	0.59
$A_{\rm V}$ ^a	1.9	1.	0.47
$n_{\rm e}$ ^a (cm^-3)	600 $\pm$ 50	550 $\pm$ 100	-
T^b (K)	13 000 $\pm$ 500	-	-
$[\mbox{O {\sc iii}}]~\lambda5007/[\mbox{O {\sc ii}}]~\lambda3727$	3.69	0.48	0.3
$[\mbox{O {\sc iii}}]~\lambda5007/[\mbox{O {\sc i}}]~\lambda6300$	10.15	2.08	1.23
$[\mbox{O {\sc i}}]~\lambda6300/$ H $\alpha$	0.3	0.46	0.27
$[\mbox{S {\sc ii}}]~\lambda6716+\lambda6731/$ H $\alpha$	0.67	0.66	0.79^c
$[\mbox{N {\sc ii}}]~\lambda6583/$ H $\alpha$	1.05	1.15	0.65

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