Open Access
Table 1.
High excitation Seyfert 2s from the S7 survey with reliable measurements of the [Ar IV] doublet.
| (1) | (2) | (3) | (4) | (5) | (6) (a) | (7) (a) |
|---|---|---|---|---|---|---|
| Index | Object name | Aperture | Redshift | AV | [O III]/Hβ | He II/Hβ |
| # | (arcsec) | z |
 |
 |
||
| 1 | NGC 5506 | 1″ | 0.0061 | 2.85 | 7.08 ± 0.10 | 0.15 ± 0.014 |
| 2 | NGC 1320 | 1″ | 0.0093 | 1.84 | 9.43 ± 0.11 | 0.34 ± 0.012 |
| 3 | NGC 5643 | 1″ | 0.0040 | 0.00 | 11.1 ± 0.11 | 0.23 ± 0.009 |
| 4 | Mrk 573 | 4″ | 0.0172 | 1.11 | 10.2 ± 0.04 | 0.30 ± 0.004 |
| 5 | NGC 3281 | 4″ | 0.0107 | 1.72 | 8.19 ± 0.08 | 0.33 ± 0.007 |
| 6 | ESO 137-G34 | 4″ | 0.0091 | 1.84 | 9.56 ± 0.05 | 0.22 ± 0.005 |
| 7 | NGC 4939 | 4″ | 0.0104 | 1.62 | 10.2 ± 0.06 | 0.30 ± 0.006 |
| 8 | NGC 3393 | 1″ | 0.0125 | 1.16 | 9.04 ± 0.07 | 0.24 ± 0.006 |
| 9 | NGC 7682 | 1″ | 0.0171 | 1.30 | 9.75 ± 0.11 | 0.18 ± 0.010 |
| 10 | IC 5063 | 4″ | 0.0114 | 2.39 | 8.47 ± 0.05 | 0.11 ± 0.004 |
| 11 | NGC 5728 | 4″ | 0.0093 | 1.21 | 8.70 ± 0.06 | 0.18 ± 0.007 |
| 12 | IC 4995 | 1″ | 0.0161 | 0.83 | 12.3 ± 0.13 | 0.30 ± 0.010 |
| 13 | IC 2560 | 1″ | 0.0098 | 0.60 | 11.6 ± 0.15 | 0.28 ± 0.012 |
| Outliers | Averages: | 9.67 | 0.243 ± 0.072 | |||
| a | ESO 138-G01 | 4″ | 0.0091 | 0.87 | 8.44 ± 0.029 | 0.27 ± 0.003 |
| b | Mrk 1210 | 4″ | 0.0135 | 1.00 | 9.38 ± 0.040 | 0.20 ± 0.004 |
| c | NGC 4507 | 4″ | 0.0118 | 1.15 | 8.06 ± 0.021 | 0.17 ± 0.002 |
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