Table 9: Logarithmic extinction constant $c_\beta$ , and electron temperatures and densities. Errors on temperatures are within 500 Kelvin.
Object $c_\beta$ $T_{\rm e}$ ([O III]) $T_{\rm e}$ ([N II]) $N_{\rm e}$ ([S II]) $N_{\rm e}$ ([Cl III])

name (K) (K) (cm^-3) (cm^-3)

DdDm1 - 12 200 - - 3700

IC 5117 1.30 12 500 13 500 - 38 000

NGC 6833 0.34 13 200 15 400 >10 000 -

M 1-71 2.44 9800 10 200 >10 000 -

**Table 9:** Logarithmic extinction constant $c_\beta$ , and electron temperatures and densities. Errors on temperatures are within 500 Kelvin.
Object	$c_\beta$	$T_{\rm e}$ ([O III])	$T_{\rm e}$ ([N II])	$N_{\rm e}$ ([S II])	$N_{\rm e}$ ([Cl III])
name		(K)	(K)	(cm^-3)	(cm^-3)
DdDm1	-	12 200	-	-	3700
IC 5117	1.30	12 500	13 500	-	38 000
NGC 6833	0.34	13 200	15 400	>10 000	-
M 1-71	2.44	9800	10 200	>10 000	-

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and reduction
	3 Morphology and sizes
	4 Analysis
	5 Discussion and conclusions
	References