Table 2
Reddening-corrected line intensity ratios, normalized to Hβ, for the SF knots and the nuclear region in Tololo 1937-423.
| Ion | A | B | C | D | E | F | G | H | I | Nuclear |
|
|
||||||||||
| 4340 Hγ | 0.487 ± 0.017 | 0.503 ± 0.016 | 0.502 ± 0.016 | 0.510 ± 0.024 | 0.411 ± 0.022 | 0.520 ± 0.036 | 0.424 ± 0.031 | 0.543 ± 0.086 | 0.355 ± 0.036 | 0.438 ± 0.022 |
| 4363 [OIII] | 0.031 ± 0.006 | 0.029 ± 0.008 | – | – | – | – | – | – | – | – |
| 4472 HeI | 0.041 ± 0.008 | 0.035 ± 0.007 | – | – | – | – | – | – | – | – |
| 4861 Hβ | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 |
| 4959 [OIII] | 0.976 ± 0.019 | 0.955 ± 0.018 | 0.715 ± 0.015 | 0.502 ± 0.017 | 0.670 ± 0.022 | 0.804 ± 0.030 | 0.542 ± 0.034 | 0.732 ± 0.036 | 0.625 ± 0.040 | 0.585 ± 0.018 |
| 5007 [OIII] | 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 | 2.011 ± 0.071 | 1.625 ± 0.073 | 1.754 ± 0.036 |
| 5875 HeI | 0.111 ± 0.006 | 0.107 ± 0.006 | 0.094 ± 0.006 | 0.086 ± 0.009 | 0.105 ± 0.012 | – | – | – | – | – |
| 6364 [OI] | 0.024 ± 0.004 | 0.030 ± 0.005 | 0.041 ± 0.005 | 0.040 ± 0.008 | 0.032 ± 0.018 | – | – | – | – | – |
| 6548 [NII] | 0.068 ± 0.005 | 0.092 ± 0.006 | 0.110 ± 0.007 | 0.122 ± 0.009 | 0.109 ± 0.009 | 0.083 ± 0.013 | 0.105 ± 0.019 | 0.107 ± 0.014 | 0.098 ± 0.013 | 0.130 ± 0.009 |
| 6563 Hα | 2.870 ± 0.055 | 2.870 ± 0.066 | 2.870 ± 0.067 | 2.870 ± 0.083 | 2.870 ± 0.092 | 2.870 ± 0.111 | 2.870 ± 0.176 | 2.870 ± 0.134 | 2.870 ± 0.159 | 2.870 ± 0.078 |
| 6584 [NII] | 0.215 ± 0.007 | 0.281 ± 0.010 | 0.350 ± 0.011 | 0.356 ± 0.015 | 0.334 ± 0.015 | 0.281 ± 0.017 | 0.318 ± 0.028 | 0.273 ± 0.020 | 0.338 ± 0.026 | 0.374 ± 0.013 |
| 6678 HeI | 0.033 ± 0.005 | 0.031 ± 0.005 | 0.026 ± 0.005 | 0.021 ± 0.008 | – | – | – | – | – | – |
| 6717 [SII] | 0.301 ± 0.010 | 0.407 ± 0.013 | 0.497 ± 0.015 | 0.551 ± 0.020 | 0.484 ± 0.019 | 0.475 ± 0.023 | 0.465 ± 0.035 | 0.381 ± 0.025 | 0.530 ± 0.037 | 0.537 ± 0.017 |
| 6731 [SII] | 0.218 ± 0.008 | 0.307 ± 0.011 | 0.366 ± 0.010 | 0.391 ± 0.016 | 0.348 ± 0.017 | 0.343 ± 0.020 | 0.340 ± 0.029 | 0.294 ± 0.020 | 0.362 ± 0.026 | 0.387 ± 0.015 |
| 7065 HeI | 0.017 ± 0.004 | 0.020 ± 0.005 | – | – | – | – | – | – | – | – |
| 7136 [ArIII] | 0.070 ± 0.005 | 0.069 ± 0.005 | 0.064 ± 0.004 | – | 0.062 ± 0.009 | – | – | – | – | – |
|
|
||||||||||
| F Hβ | 56 ± 3 | 51 ± 3 | 104 ± 9 | 88 ± 15 | 49 ± 6 | 16 ± 1 | 9 ± 1 | 26 ± 7 | 15 ± 3 | 180 ± 38 |
| C Hβ | 0.403 ± 0.016 | 0.313 ± 0.019 | 0.504 ± 0.019 | 0.667 ± 0.024 | 0.470 ± 0.027 | 0.288 ± 0.032 | 0.182 ± 0.051 | 0.625 ± 0.039 | 0.422 ± 0.046 | 0.760 ± 0.022 |
| W(Hγ)ab | 2.1 | 3.8 | 4.5 | 4.0 | 3.1 | 2.4 | – | – | – | 4.8 |
| W(Hβ)ab | 2.2 | 2.0 | 4.6 | 3.7 | 3.3 | 2.1 | 2.2 | 2.9 | 2.9 | 5.3 |
| A V | 0.870 ± 0.034 | 0.676 ± 0.041 | 1.088 ± 0.042 | 1.442 ± 0.052 | 1.015 ± 0.058 | 0.622 ± 0.070 | 0.393 ± 0.110 | 1.350 ± 0.084 | 0.912 ± 0.099 | 1.642 ± 0.005 |
| E(B−V) | 0.281 ± 0.011 | 0.218 ± 0.013 | 0.351 ± 0.013 | 0.465 ± 0.017 | 0.328 ± 0.019 | 0.201 ± 0.022 | 0.127 ± 0.036 | 0.435 ± 0.027 | 0.294 ± 0.032 | 0.530 ± 0.016 |
Notes. Reddening-corrected line fluxes normalized to F(Hβ) = 1. The reddening-corrected Hβ flux (in units of 10-16 erg s-1 cm-2), the interstellar extinction coefficient, CHβ, and values of the equivalent width in absorption for Hγ and Hβ are also provided in the table. AV = 2.16 ×C(Hβ) and E(B−V) = 0.697 ×C(Hβ) (Dopita & Sutherland 2003).
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