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Table 5
O/H, N/H and N/O abundance ratios from the literature and this work for various regions across the starburst.
| D a | 12+log(O/H) | 12+log(N/H) | log(N/O) | |
| arcsec(pc) | ||||
|
|
||||
| Walsh & Roy (1989) | ||||
| Region 2 | 6.68(123) | 8.22 ± 0.09 | 6.87 ± 0.05 | −1.35 ± 0.05 |
| Region 4 | 9.09(167) | 8.22 ± 0.08 | 6.78 ± 0.05 | −1.43 ± 0.05 |
| Region 5 | 6.90(127) | 8.12 ± 0.06 | 6.80 ± 0.04 | −1.32 ± 0.04 |
| Region 6 | 7.83(144) | 8.05 ± 0.07 | 6.82 ± 0.04 | −1.23 ± 0.04 |
| Region 7 | 12.70(234 ) | 7.96 ± 0.07 | 6.65 ± 0.04 | −1.31 ± 0.04 |
| Kobulnicky et al. (1997) | ||||
| HII-1 | 1.50(28) | 8.12 ± 0.05 | –b | −0.83 ± 0.09 |
| HII-2 | 1.75(32) | 8.19 ± 0.07 | –b | −0.86 ± 0.10 |
| UV1 | 2.70(50) | 8.16 ± 0.12 | –b | −1.29 ± 0.13 |
| Lopez-Sanchez et al. (2007) | ||||
| Knot A | 1.57(29) | 8.45 ± 0.12 | 7.54 ± 0.14 | −0.91 ± 0.18 |
| Knot B | 0.76(14) | 8.37 ± 0.13 | 7.40 ± 0.15 | −0.97 ± 0.19 |
| Knot C | 2.80(52) | 8.54 ± 0.11 | 7.08 ± 0.15 | −1.50 ± 0.08 |
| Knot D | 7.20(132) | 8.31 ± 0.07 | 6.82 ± 0.07 | −1.49 ± 0.10 |
| Monreal-Ibero et al. (2012) | ||||
| Knot 1 | 0.00(0) | 8.24 ± 0.09 | 7.43 ± 0.07 | −0.81 ± 0.25 |
| Knot 2 | 2.80(51) | 8.32 ± 0.04 | 6.94 ± 0.03 | −1.37 ± 0.11 |
| Knot 3 | 7.21(133) | 8.26 ± 0.08 | 7.00 ± 0.06 | −1.26 ± 0.22 |
| This work - Position 3 | ||||
| Region 1 | 7.4(136) | 8.40 ± 0.10 | 6.70 ± 0.06 | –1.70 ± 0.12 |
| Region 2 | 8.3(153) | 8.16 ± 0.18 | 6.61 ± 0.12 | –1.55 ± 0.21 |
| Region 3 | 9.5(175) | 8.11 ± 0.21 | 6.68 ± 0.15 | –1.43 ± 0.26 |
| Region d_3 | 9.6(177) | 8.27 ± 0.04 | 6.79 ± 0.04 | –1.48 ± 0.05 |
| This work – Position 4 | ||||
| Region 4 | 10.9(200) | 8.40 ± 0.02 | 6.86 ± 0.02 | –1.53 ± 0.03 |
| Region 5 | 10.3(189) | 8.65 ± 0.34 | 7.04 ± 0.20 | –1.61 ± 0.39 |
| Region 6 | 13.3(245) | 8.20 ± 0.13 | 6.58 ± 0.07 | –1.62 ± 0.15 |
| Region d_4 | 11.7(215) | 8.42 ± 0.14 | 6.91 ± 0.11 | –1.52 ± 0.18 |
Notes.The nomenclature is from the respective papers. These values were used to create the plots in Fig. 10.
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