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Table 1.
Acronyms used in the text.
| Acronym | Description |
|---|---|
| AGN | Active galactic nuclei |
| LINER | Low-ionization nuclear emission-line region |
| BAT | Burst alert telescope |
| INTEGRAL | International gamma-ray astrophysics laboratory |
| IRAS | Infrared astronomical satellite |
| Pan-STARRS | Panoramic survey telescope and rapid response system |
| ROSAT | Roentgen satellite |
| SWIFT | Neil Gehrels Swift Observatory |
| WISE | Wide-field infrared survey explorer |
| 3C | Third cambridge catalog |
| 4C | Fourth cambridge catalog |
| 3PBC | Third Palermo BAT catalog |
| BAT105 | Swift-BAT 105 month catalog |
| IBISCAT4 | 4th IBIS/ISGRI soft gamma-ray survey catalog |
| RBSC | ROSAT bright source catalog |
| FRSC | ROSAT faint source catalog |
| UHX | Unidentified hard X-ray sources |
| 2MASS | Two micron all-sky survey |
| 6dFG | Six-degree field galaxy survey |
| BASS | BAT AGN spectroscopic survey |
| NVSS | NRAO very large array sky survey |
| SDSS | Sloan digital sky survey |
| SUMSS | Sydney university Molonglo sky survey |
| KDE | Kernel density estimation |
| EW | Equivalent width |
| FWHM | Full width at half maximum |
| S/N | Signal-to-noise ratio |
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