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Table A.1
Logarithmic of the hydrogen column densities, log (NH), for observations in our sample with νSB < 10.
| Name | ObsID | log (NH) | ||
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| Own | Literature | Ref. | ||
|
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| NGC 1052 | 553300401 | 23.0 | 23.1 | (B) |
| 093630101 | 23.0 | |||
| 553300301 | 23.0 | |||
| 306230101 | 23.0 | |||
| NGC 2273 | 140951001 | 23.2 | 24.0 | (B) |
| NGC 3227 | 101040301 | 22.9 | 22.8 | (A) |
| 400270101 | 22.2 | 22.0 | (T) | |
| NGC 3516 | 107460601 | 22.5 | ||
| 107460701 | 22.6 | 22.0 | (A) | |
| 401210501 | 22.3 | 22.6 | (T) | |
| 401210601 | 22.4 | 22.7 | (T) | |
| 401210401 | 22.2 | 22.6 | (T) | |
| 401211001 | 22.2 | 22.5 | (T) | |
| NGC 4051 | 157560101 | 22.4 | 22.8 | (T) |
| 606321601 | 22.0 | |||
| 606320201 | 22.1 | |||
| 606321901 | 22.6 | |||
| 606322001 | 22.4 | |||
| 606320301 | 22.1 | |||
| 606320401 | 22.6 | |||
| 606321501 | 22.2 | |||
| 606321701 | 22.3 | |||
| 606322301 | 22.4 | |||
| 606322201 | 22.5 | |||
| 606321401 | 22.2 | |||
| 606322101 | 22.7 | |||
| 606321801 | 22.5 | |||
| 606320101 | 22.3 | |||
| NGC 4138 | 112551201 | 23.0 | 22.9 | (A) |
| NGC 4151 | 112310101 | 22.9 | 22.8 | (B) |
| 112830501 | 22.9 | 22.9 | (T) | |
| 112830201 | 22.9 | 22.9 | (T) | |
| 143500301 | 22.8 | 22.8 | (T) | |
| 402660201 | 23.0 | 23.0 | (T) | |
| 143500201 | 22.9 | 22.9 | (T) | |
| 143500101 | 22.9 | |||
| 402660101 | 23.1 | |||
| NGC 4235 | 204650201 | 22.3 | ||
| NGC 4258 | 400560301 | 22.9 | 22.8 | (A) |
| 110920101 | 23.0 | 22.9 | (C) | |
| NGC 4388 | 110930701 | 23.5 | 23.6 | (B) |
| 675140101 | 23.4 | |||
| NGC 4395 | 142830101 | 22.6 | 22.0 | (A) |
| 112521901 | 23.0 | 22.7 | (T) | |
| NGC 5033 | 094360501 | 22.1 | 23.5 | (C) |
| NGC 5273 | 112551701 | 22.4 | 21.9 | (C) |
| NGC 5548 | 109960101 | 22.2 | ||
| 089960301 | 22.1 | |||
| 089960401 | 22.1 | |||
Reference. (A) Akylas & Georgantopoulos (2009), (B) Brightman & Nandra (2011), (C) Cappi et al. (2006), and (T) Tombesi et al. (2010).
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