Table 2: Physical properties and chemical abundances for the galaxies with S/H and O/H derived directly.
Object IIZW40 Tol0226-390 Tol1924-416 Tol0538-416
  G89a PMD03a This work      
$n_{\rm e}$([SII]) 100. 290 $\pm$ 60 197 $\pm$ 167 221 $\pm$ 64 78 $\pm$ 28 $\leq$100.b
$T_{\rm e}$([SIII])/104K 1.35 $\pm$ 0.12 1.30 $\pm$ 0.05 1.04c $\pm$ 0.10 1.40c $\pm$ 0.18 1.43c $\pm$ 0.17 1.29c $\pm$ 0.20
$T_{\rm e}$([OIII])/104K 1.33 $\pm$ 0.02 1.34 $\pm$ 0.03 1.35 $\pm$ 0.06 1.19 $\pm$ 0.04 1.39 $\pm$ 0.07 1.30 $\pm$ 0.06
12+log(S+/H+) 5.21 $\pm$ 0.09 5.21 $\pm$ 0.09 5.23 $\pm$ 0.12 5.81 $\pm$ 0.07 5.50 $\pm$ 0.06 6.18 $\pm$ 0.04
12+log(S++/H+) 6.00 $\pm$ 0.11 5.99 $\pm$ 0.04 6.24 $\pm$ 0.14 6.17 $\pm$ 0.16 5.91 $\pm$ 0.13 6.20 $\pm$ 0.21
12+log[(S+ + S++)/H+] 6.07 $\pm$ 0.11 6.07 $\pm$ 0.05 6.28 $\pm$ 0.14 6.33 $\pm$ 0.13 6.06 $\pm$ 0.11 6.49 $\pm$ 0.13
ICF(S+ + S++) 1.95 1.86 1.98 1.05 1.06 1.06
12+log (S/H) 6.36 $\pm$ 0.11 6.34 $\pm$ 0.05 6.53 $\pm$ 0.34 6.35 $\pm$ 0.14 6.08 $\pm$ 0.12 6.53 $\pm$ 0.14
12+log(O+/H+) 6.95 $\pm$ 0.07 7.08 $\pm$ 0.07 6.88 $\pm$ 0.26 7.37 $\pm$ 0.15 7.13 $\pm$ 0.14 6.99 $\pm$ 0.07
12+log(O++/H+) 8.01 $\pm$ 0.02 8.03 $\pm$ 0.08 7.96 $\pm$ 0.07 7.94 $\pm$ 0.07 7.83 $\pm$ 0.08 7.79 $\pm$ 0.07
12+log (O/H) 8.05 $\pm$ 0.02 8.08 $\pm$ 0.03 7.99 $\pm$ 0.09 8.05 $\pm$ 0.09 7.91 $\pm$ 0.09 7.86 $\pm$ 0.07
Object Cam0840+1201 CTS1008 UM238 Tol0104+388 UM306 UM307
$n_{\rm e}$([SII]) $\leq$100.b 169 $\pm$ 50 $\leq$100.b $\leq$100.b 111 $\pm$ 109 845 $\pm$ 102
$T_{\rm e}$([SIII])/104K 1.59c $\pm$ 0.38 1.22c $\pm$ 0.22 1.61d $\pm$ 0.09 0.85e $\pm$ 0.08 1.13e $\pm$ 0.17 1.08e $\pm$ 0.07
$T_{\rm e}$([OIII])/104K 1.36 $\pm$ 0.06 1.24 $\pm$ 0.05 1.61 $\pm$ 0.09 1.55 $\pm$ 0.08 1.21 $\pm$ 0.05 1.11 $\pm$ 0.07
12+log(S+/H+) 5.52 $\pm$ 0.05 5.50 $\pm$ 0.11 5.54 $\pm$ 0.17 6.13 $\pm$ 0.03 5.83 $\pm$ 0.05 6.40 $\pm$ 0.17
12+log(S++/H+) 6.00 $\pm$ 0.29 6.20 $\pm$ 0.22 5.34 $\pm$ 0.09 6.96 $\pm$ 0.16 6.36 $\pm$ 0.24 6.31 $\pm$ 0.10
12+log[(S+ + S++)/H+] 6.12 $\pm$ 0.24 6.28 $\pm$ 0.20 5.75 $\pm$ 0.14 7.02 $\pm$ 0.14 6.48 $\pm$ 0.20 6.66 $\pm$ 0.14
ICF(S+ + S++) 1.74 1.09 1.01 1.00 1.09 1.04
12+log (S/H) 6.36 $\pm$ 0.33 6.32 $\pm$ 0.22 5.76 $\pm$ 0.14 7.02 $\pm$ 0.18 6.52 $\pm$ 0.21 6.68 $\pm$ 0.14
12+log(O+/H+) 6.86 $\pm$ 0.14 6.90 $\pm$ 0.27 7.60 $\pm$ 0.36 8.33 $\pm$ 0.09 7.75 $\pm$ 0.07 8.68 $\pm$ 0.35
12+log(O++/H+) 7.77 $\pm$ 0.07 8.01 $\pm$ 0.07 7.65 $\pm$ 0.08 7.53 $\pm$ 0.08 7.92 $\pm$ 0.07 7.57 $\pm$ 0.11
12+log (O/H) 7.82 $\pm$ 0.08 8.05 $\pm$ 0.09 7.92 $\pm$ 0.23 8.40 $\pm$ 0.09 8.14 $\pm$ 0.07 8.71 $\pm$ 0.34
Object UM323 Tol0140+420 UM391 UM396 UM408 Tol0306+405
$n_{\rm e}$([SII]) 630:f 144:f $\leq$100.b $\leq$100.b $\leq$100.b 220 $\pm$ 64
$T_{\rm e}$([SIII])/104K 1.35e $\pm$ 0.14 2.25e $\pm$ 0.65 1.09e $\pm$ 0.10 1.31d $\pm$ 0.06 1.71d $\pm$ 0.11 1.94e $\pm$ 0.71
$T_{\rm e}$([OIII])/104K 1.87 $\pm$ 0.12 1.31 $\pm$ 0.06 1.12 $\pm$ 0.09 1.32 $\pm$ 0.06 1.71 $\pm$ 0.10 1.29 $\pm$ 0.06
12+log(S+/H+) 5.88 $\pm$ 0.13 5.83 $\pm$ 0.07 6.02 $\pm$ 0.05 5.30 $\pm$ 0.04 5.36 $\pm$ 0.05 5.94 $\pm$ 0.04
12+log(S++/H+) 5.86 $\pm$ 0.13 5.83 $\pm$ 0.28 6.33 $\pm$ 0.14 6.33 $\pm$ 0.12 5.47 $\pm$ 0.10 5.56 $\pm$ 0.43
12+log[(S+ + S++)/H+] 6.17 $\pm$ 0.13 6.13 $\pm$ 0.19 6.50 $\pm$ 0.11 6.37 $\pm$ 0.11 5.72 $\pm$ 0.08 6.09 $\pm$ 0.19
ICF(S+ + S++) 1.02 1.03 1.02 1.78 1.01 1.01
12+log (S/H) 6.18 $\pm$ 0.13 6.16 $\pm$ 0.18 6.51 $\pm$ 0.11 6.61 $\pm$ 0.17 5.73 $\pm$ 0.08 6.13 $\pm$ 0.16
12+log(O+/H+) 7.99 $\pm$ 0.07 7.51 $\pm$ 0.08 7.49 $\pm$ 0.12 7.03 $\pm$ 0.07 7.18 $\pm$ 0.07 7.78 $\pm$ 0.07
12+log(O++/H+) 7.37 $\pm$ 0.08 7.78 $\pm$ 0.07 7.37 $\pm$ 0.14 7.97 $\pm$ 0.07 7.56 $\pm$ 0.08 7.90 $\pm$ 0.07
12+log (O/H) 8.08 $\pm$ 0.07 7.96 $\pm$ 0.08 7.74 $\pm$ 0.13 8.01 $\pm$ 0.07 7.71 $\pm$ 0.08 8.15 $\pm$ 0.07
Object Cam0357+3915 CTS1006 Tol2138+397 Tol2146+391 Tol2240+384 UM151g
$n_{\rm e}$([SII]) $\leq$100.b $\leq$100.b $\leq$100.b $\leq$100.b 132 $\pm$ 80 $\leq$100.b
$T_{\rm e}$([SIII])/104K 1.52d $\pm$ 0.08 1.42e $\pm$ 0.12 1.99d $\pm$ 0.14 1.68d $\pm$ 0.10 1.60d $\pm$ 0.09 1.88d $\pm$ 0.12
$T_{\rm e}$([OIII])/104K 1.52 $\pm$ 0.08 1.31 $\pm$ 0.06 1.97 $\pm$ 0.13 1.68 $\pm$ 0.10 1.60 $\pm$ 0.09 1.86 $\pm$ 0.12
12+log(S+/H+) 5.07 $\pm$ 0.07 5.70 $\pm$ 0.07 5.20 $\pm$ 0.04 4.93 $\pm$ 0.05 5.19 $\pm$ 0.05 5.77 $\pm$ 0.06
12+log(S++/H+) 5.86 $\pm$ 0.11 6.03 $\pm$ 0.09 5.82 $\pm$ 0.12 6.20 $\pm$ 0.08 5.68 $\pm$ 0.20 6.13 $\pm$ 0.13
12+log[(S+ + S++)/H+] 5.93 $\pm$ 0.10 6.20 $\pm$ 0.09 5.91 $\pm$ 0.10 6.22 $\pm$ 0.07 5.80 $\pm$ 0.17 6.29 $\pm$ 0.11
ICF(S+ + S++) 1.14 1.06 1.12 1.10 1.14 1.04
12+log (S/H) 5.98 $\pm$ 0.13 6.22 $\pm$ 0.09 5.96 $\pm$ 0.12 6.26 $\pm$ 0.09 5.86 $\pm$ 0.20 6.31 $\pm$ 0.12
12+log(O+/H+) 6.33 $\pm$ 0.14 7.54 $\pm$ 0.15 6.69 $\pm$ 0.07 5.88 $\pm$ 0.10 6.92 $\pm$ 0.08 -
12+log(O++/H+) 7.78 $\pm$ 0.08 7.82 $\pm$ 0.07 7.31 $\pm$ 0.08 7.61 $\pm$ 0.08 7.70 $\pm$ 0.08 7.05 $\pm$ 0.08
12+log (O/H) 7.79 $\pm$ 0.08 8.00 $\pm$ 0.10 7.41 $\pm$ 0.08 7.62 $\pm$ 0.08 7.77 $\pm$ 0.08 -
a References - G89: Garnett (1989), PMD03: Pérez-Montero & Díaz (2003). b Low Density Limit. c $T_{\rm e}$([SIII]) derived using [SIII]$\lambda$6312 Å line from the red spectra. d $T_{\rm e}$([SIII]) derived from the relation $T_{\rm e}$([SIII]) = 10500$T_{\rm e}$([OIII]) - 800, see the text for details. e $T_{\rm e}$([SIII]) derived using [SIII]$\lambda$6312 Å line from the blue spectra. f Upper limit. g [OII]$\lambda$3727 Å line could not be measured for UM151.

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