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Table 3

Electron densities and electron temperatures.

H ii region ne te([N ii]) te([O iii]) te([S iii]) te([O ii]) te([S ii])
(cm-3) (104 K) (104 K) (104 K) (104 K) (104 K)

S83 256 ± 62 1.16 ± 0.03E 1.14 ± 0.05 1.13 ± 0.02
S127 325 ± 75 1.01 ± 0.13E 0.88 ± 0.15E 0.91 ± 0.05
S128 <100 0.92 ± 0.15E 0.77 ± 0.18E 0.98 ± 0.12
S132 315 ± 15 0.96 ± 0.05 0.82 ± 0.07E 0.81 ± 0.02 0.84 ± 0.09
S156 1133 ± 29 0.96 ± 0.04 0.92 ± 0.03 0.80 ± 0.01 0.87 ± 0.18
S158 1323 ± 265 0.99 ± 0.15 0.87 ± 0.21E 0.72 ± 0.25
S162 1440 ± 23 0.93 ± 0.03 0.94 ± 0.02 0.80 ± 0.03 0.81 ± 0.03
S206 357 ± 161 0.95 ± 0.02 0.87 ± 0.05E
S212 211 ± 29 1.11 ± 0.06 1.21 ± 0.04 1.18 ± 0.03
S255 321 0.82 0.65E
S298 <100 1.20 ± 0.03 1.11 ± 0.04E 1.17 ± 0.08E
S301 <100 <0.91 <0.77E <0.96E
S311 130 0.95 0.87 0.72E 0.88

Notes. E Electron temperatures derived from other te (see text for details).  

(†)

In region S158 te([S iii]) has S/N< 3. This fact was taken into account when deriving abundances.

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