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Table 1.
Sample of the 21 AGNs studied in this paper.
| Source | Seyfert | Redshift |
 |
log |
|---|---|---|---|---|
| name | activity | z | ×1020 | MBH |
| type | [cm−2] | [M⊙] | ||
| 1H0419-577 | 1.5 | 0.1040 | 1.31 | 8.58 |
| ESO198-G24 | 1.0 | 0.0455 | 3.26 | 8.48 |
| HB890405-123 | 1.2 | 0.5725 | 4.16 | – |
| HE1029-1401 | 1.2 | 0.0858 | 6.28 | 8.73 |
| IRASF12397+3333 | 1.0 | 0.0435 | 1.31 | 6.66 |
| LBQS1228+1116 | QSO | 0.2362 | 2.60 | – |
| MRK 279 | 1.0 | 0.0304 | 1.59 | 7.54 |
| MRK 335 | 1.0 | 0.0257 | 4.09 | 7.15 |
| MRK 509 | 1.5 | 0.0343 | 5.16 | 8.16 |
| MRK 590 | 1.0 | 0.0263 | 2.93 | 7.68 |
| NGC 4593 | 1.0 | 0.009 | 2.05 | 6.28 |
| NGC 7469 | 1.0 | 0.0162 | 5.24 | 7.04 |
| PG0804+761 | 1.0 | 0.1000 | 3.51 | 8.24 |
| PG0844+349 | 1.0 | 0.0640 | 3.22 | 7.97 |
| PG1116+215 | 1.0 | 0.1765 | 1.46 | 8.53 |
| PG1351+640 | 1.5 | 0.0882 | 2.10 | 7.66 |
| PG1402+261 | 1.0 | 0.1640 | 1.44 | 7.94 |
| PG1440+356 | 1.0 | 0.0790 | 1.08 | 7.47 |
| Q0056-363 | 1.0 | 0.1641 | 1.94 | 8.95 |
| RE1034+396 | 1.0 | 0.0424 | 1.36 | 6.41 |
| UGC 3973 | 1.2 | 0.0221 | 6.61 | 7.72 |
Notes. Redshifts are taken from NASA Extra-galactic Database- NED. Galactic column densities 
are taken from Willingale et al. (2013). The black hole masses are adopted from Petrucci et al. (2018) and see Bianchi et al. (2009) for detailed references.
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