Table 2
Numbers of zCOSMOS emission-line galaxies classified as type 2 AGN by different selection techniques.
| [Ne v] | X-ray | DD-Blue | DD-MEx | |
|
|
||||
| [Ne v] | 36 (2.1%) | 11 (17%) | 12 (10%) | 30 (5.1%) |
| X-rays | 11 (31%) | 66 (3.9%) | 11 (9.4%) | 50 (8.6%) |
| DD-Blue | 12 (33%) | 11 (17%) | 117 (6.8%) | 69 (12%) |
| DD-MEx | 30 (83%) | 50 (76%) | 69 (59%) | 582 (34%) |
Notes. The diagonal elements represent the number of galaxies classified as type 2 AGN by each technique, with corresponding efficiencies from the sample of 1712 galaxies for which all diagnostics are available. Type 2 AGN identified by two methods are shown as off-diagonal elements, along with the percentage from the total number of galaxies (boldface number in same column) selected by the specific diagnostic identified in the column top label.
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