Table 9: Fitting parameters of electron-density distributiona
Galaxy Data points $\delta $ $\log n_{{\rm e}, 0}$ (cm-3)
IC 5063 6 -1.08 $\pm$ 0.25 3.1
NGC 7212 4 -1.33 $\pm$ 0.15 4.1
NGC 3281 3 -0.84 $\pm$ 0.08 3.1
NGC 5643 10 -1.22 $\pm$ 0.30 3.0
NGC 1386 5 -1.23 $\pm$ 0.09 2.4
a A linear least-squares fit was applied with $\log$ $n_{\rm e, obs}$ = $\delta \cdot \log R/R_0 + \log n_{{\rm e}, 0 \rm obs}$. $n_{{\rm e}, 0}$ corresponds to the value at R0 = 100 pc distance from the centre. The number of data points included in the fit is given in Col. 2 (=half the number of averaged values from both sides of the nucleus). For those objects which show a transition between line ratios typical for AGNs and H II-region like ones in the diagnostic diagrams, determining the size of the NLR, only data points within the NLR were included (NGC 5643 and NGC 1386).

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