Open Access
Table 1
Logarithms of the observed line ratios for the H ii regions identified in NGC 5427 (see Fig. 2).
| log Ratios: | |||||||||||||
| Region | [O iii]/Hβ | [N ii]/Hα | [S ii]/Hα | [O iii]/[O ii] | [O iii]/[N ii] | [O iii]/[S ii] | [N ii]/[S ii] | [N ii]/[O ii] | log q | Δ log q | 12 +log (O/H) | Δlog (O/H)] | |
|
|
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| 021 | –0.501 | –0.495 | –0.664 | –0.339 | –0.462 | –0.293 | 0.169 | 0.123 | 7.39 | 0.17 | 9.11 | 0.06 | |
| 06 | –0.769 | –0.483 | –0.736 | –0.931 | –0.743 | –0.49 | 0.253 | –0.188 | 7.37 | 0.29 | 9.16 | 0.06 | |
| 08 | –0.803 | –0.494 | –0.647 | –1.017 | –0.765 | –0.613 | 0.153 | –0.251 | 7.15 | 0.17 | 9.13 | 0.06 | |
| 09 | –0.489 | –0.466 | –0.619 | –0.651 | –0.48 | –0.327 | 0.153 | –0.172 | 7.35 9 | 0.01 | 9.11 | 0.01 | |
| 10 | –0.631 | –0.46 | –0.656 | –0.911 | –0.628 | –0.431 | 0.197 | –0.282 | 7.27 | 0.22 | 9.12 | 0.06 | |
| 11 | –0.906 | –0.487 | –0.654 | – | –0.876 | –0.709 | 0.167 | – | 7.27 | 0.00 | 9.18 | 0.01 | |
| 12 | –0.76 | –0.474 | –0.602 | –1.146 | –0.742 | –0.615 | 0.128 | –0.404 | 7.07 | 0.23 | 9.09 | 0.09 | |
| 13 | –0.828 | –0.517 | –0.597 | –0.912 | –0.767 | –0.688 | 0.079 | –0.145 | 7.09 | 0.03 | 9.12 | 0.02 | |
| 14 | –0.689 | –0.445 | –0.65 | –0.968 | –0.7 | –0.496 | 0.204 | –0.268 | 7.26 | 0.24 | 9.13 | 0.07 | |
| 15 | –0.45 | –0.455 | –0.56 | –0.795 | –0.451 | –0.346 | 0.105 | –0.343 | 7.21 | 0.09 | 9.06 | 0.03 | |
| 16 | –0.245 | –0.49 | –0.539 | –0.648 | –0.212 | –0.163 | 0.049 | –0.436 | 7.21 | 0.01 | 9.00 | 0.01 | |
| 17 | –0.113 | –0.549 | –0.527 | –0.503 | –0.02 | –0.043 | –0.023 | –0.483 | 7.23 | 0.08 | 8.92 | 0.04 | |
| 18 | 0.101 | –0.615 | –0.532 | –0.596 | 0.26 | 0.177 | –0.084 | –0.856 | 7.16 | 0.07 | 8.80 | 0.04 | |
| 19 | –0.68 | –0.461 | –0.583 | –0.925 | –0.675 | –0.554 | 0.121 | –0.249 | 7.15 | 0.12 | 9.11 | 0.04 | |
| 20 | –0.542 | –0.495 | –0.602 | –0.874 | –0.504 | –0.397 | 0.107 | –0.37 | 7.17 | 0.13 | 9.07 | 0.04 | |
| 21 | –0.624 | –0.49 | –0.569 | –1.052 | –0.59 | –0.512 | 0.078 | –0.462 | 7.06 | 0.17 | 9.05 | 0.07 | |
| 22 | –0.529 | –0.493 | –0.534 | –0.928 | –0.492 | –0.451 | 0.041 | –0.436 | 7.06 | 0.09 | 9 9.03 | 0.04 | |
| 23 | –0.471 | –0.453 | –0.525 | –0.836 | –0.475 | –0.403 | 0.072 | –0.361 | 7.15 | 0.08 | 9.05 8 | 0.02 | |
| 24 | –0.38 | –0.463 | –0.509 | –0.818 | –0.373 | –0.327 | 0.046 | –0.445 | 7.13 | 0.07 | 9.02 | 0.03 | |
| 25 | –0.47 | –0.457 | –0.531 | –0.917 | –0.469 | –0.395 | 0.074 | –0.448 | 7.12 | 0.13 | 9.04 | 0.05 | |
| 26 | –0.413 | –0.489 | –0.591 | –0.893 | –0.381 | –0.279 | 0.102 | –0.512 | 7.17 | 0.18 | 9.02 | 0.07 | |
| 27 | –0.37 | –0.508 | –0.518 | –0.785 | –0.318 | –0.309 | 0.01 | –0.466 | 7.09 | 0.03 | 8.99 | 0.02 | |
| 28 | –0.39 | –0.49 | –0.56 | –0.871 | –0.356 | –0.287 | 0.07 | –0.515 | 7.13 | 0.14 | 9.01 | 0.06 | |
| 29 | –0.41 | –0.498 | –0.543 | –0.87 | –0.368 | –0.324 | 0.045 | –0.502 | 7.10 | 0.10 | 9.00 | 0.05 | |
| 301 | –0.276 | –0.439 | –0.461 | –1.06 | –0.293 | –0.272 | 0.021 | –0.767 | 7.02 | 0.23 | 8.93 | 0.13 | |
| 31 | –0.234 | –0.508 | –0.494 | –0.708 | –0.183 | –0.196 | –0.014 | –0.525 | 7.12 | 0.01 | 8.96 | 0.01 | |
| 32 | –0.852 | –0.494 | –0.679 | –1.079 | –0.814 | –0.63 | 0.184 | –0.265 | 7.18 | 0.24 | 9.14 | 0.08 | |
| 33 | –0.663 | –0.531 | –0.664 | –0.815 | –0.588 | –0.456 | 0.133 | –0.226 | 7.22 | 0.07 | 9.11 | 0.03 | |
| 34 | –0.602 | –0.364 | –0.561 | –0.864 | –0.694 | –0.497 | 0.197 | –0.17 | 7.30 | 0.17 | 9.14 | 0.04 | |
| 351 | –0.468 | –0.469 | –0.612 | –1.32 | –0.456 | –0.313 | 0.143 | –0.864 | 7.08 | 0.45 | 8.97 | 0.22 | |
| 36 | –0.405 | –0.45 | –0.534 | –0.866 | –0.411 | –0.327 | 0.084 | –0.455 | 7.15 | 0.14 | 9.03 | 0.05 | |
| 37 | –0.323 | –0.524 | –0.548 | –0.695 | –0.255 | –0.231 | 0.024 | –0.441 | 7.15 | 0.01 | 0 9.00 | 0.01 | |
| 38 | –0.112 | –0.526 | –0.535 | –0.628 | –0.042 | –0.033 | 0.009 | –0.585 | 7.20 | 0.03 | 8.94 | 0.02 | |
| 39 | –0.255 | –0.507 | –0.552 | –0.749 | –0.205 | –0.16 | 0.045 | –0.544 | 7.16 | 0.08 | 8.79 | 0.04 | |
Notes.The mean ionisation parameters, log q = log (cU), where c is the speed of light in cm s-1, and the mean total oxygen abundances, 12 +log (O/H) are derived from the pyqz program (see text).
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