Table 4.
Metallicity.
| Name |
12+log(O/H) [C17] |
12+log(O/H) [M 08] |
|||
|---|---|---|---|---|---|
| (from N2) | (from N2+R3) | (from N2) | (from N2+R3) | ||
| J1343 | Total |  |
– |  |
– |
| J0143 | Total |  |
 |
 |
 |
| J1038 | Totala |  |
 |
 |
 |
| A1 |  |
 |
 |
 |
|
| A2 |  |
 |
 |
 |
|
| A3 |  |
 |
 |
 |
|
| A3 (low) |  |
 |
 |
 |
|
| A3 (centre) |  |
 |
 |
 |
|
| A3 (up) |  |
 |
 |
 |
|
| A4 |  |
 |
 |
 |
|
| J1958 | Totala |  |
 |
 |
 |
| A1 |  |
 |
 |
 |
|
| A2 |  |
 |
 |
 |
|
| B | <8.87 |  |
<9.00 |  |
|
| J1110 | Total | <8.87 | – | <8.69 | – |
| J0022 | Total |  |
– |  |
– |
| A1 |  |
– |  |
– | |
| A2 |  |
– |  |
– | |
| A3 |  |
– |  |
– | |
Notes. Gas-phase metallicity estimates from the N2 and R3+N2 diagnostics with the calibration from Curti et al. (2017, C17; Cols. 3 and 4) and Maiolino et al. (2008, M 08; Cols. 5 and 6). Both the intrinsic scatter of the calibrations and the flux ratio uncertainties are taken into account in computing the total uncertainties. For J1038, the R3 ratios are derived rescaling the Hα flux (see the text for details).
The metallicity measurements were derived from the spectrum obtained integrating the flux over the A2, A3 and A4 knots, for J1038 (with log([OIII]/Hβ) = 0.83 ± 0.01 and log([NII]/Hα) = −1.25 ± 0.03), and over the A1 and A2 knots, for J1958 log([OIII]/Hβ) = 0.61 ± 0.01 and log([NII]/Hα) = −0.84 ± 0.09, which can be associated with unique emitting regions in the source plane.
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