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Table 3

Diagnostic line ratios, physical parameters and abundances for the SF and the nuclear region in Tololo 1937-423.

Parameter A B C D E F G H I Nuclear

[O iii] λ5007 / Hβ 2.865 ± 0.039 2.872 ± 0.046 2.056 ± 0.035 1.518 ± 0.035 1.980 ± 0.048 2.346 ± 0.069 1.570 ± 0.072 2.012 ± 0.071 1.625 ± 0.073 1.754 ± 0.036
[N ii] λ6584 / Hα 0.075 ± 0.002 0.098 ± 0.003 0.122 ± 0.003 0.124 ± 0.004 0.116 ± 0.004 0.098 ± 0.005 0.111 ± 0.007 0.095 ± 0.006 0.118 ± 0.006 0.130 ± 0.003
[S ii] λλ6717 6731 / Hα 0.181 ± 0.003 0.249 ± 0.004 0.301 ± 0.004 0.328 ± 0.006 0.290 ± 0.006 0.285 ± 0.007 0.280 ± 0.010 0.235 ± 0.008 0.311 ± 0.009 0.322 ± 0.005
Ne (cm-3) <100 <100 <100 <100 <100 <100 <100 125 <100 <100
Te (K) 11 950 11700
12 + log(O/H)1 8.17 8.19 8.21 8.20 8.21 8.15 8.20 8.20 8.19 8.23
12 + log(O/H)2 8.22 8.26 8.34 8.38 8.34 8.29 8.36 8.30 8.36 8.37

Notes.

(1)

Abundances estimated from Pilyugin & Grebel (2016) – uncertainties are within 0.1 dex.

(2)

Abundances derived following Pettini & Pagel (2004) – uncertainties are within 0.25 dex.

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