Table 3.
Number of sources in each class for the 2RXS and XMMSL2 catalogues.
| 2RXS | XMMSL2 | |||
|---|---|---|---|---|
| exiML | > 6.5 | > 10 | > 10 | not 2RXS |
| Any (non-unique) | 21 288 | 3196 | ||
| A. All unique | 19 821 | 10 039 | 2341 | 1475 |
| T. Targets | 13 986 | 6853 | 1490 | 773 |
| O. Observed | 10 590 | 6145 | 1219 | 502 |
| I. Identified | 10 474 | 6096 | 1208 | 496 |
| blazar_noZ | 108 | 89 | 42 | 13 |
| Z. good Z | 10 366 | 6007 | 1166 | 483 |
Notes. “exiML” refers to the existence likelihood threshold applied in the X-ray. “Any” refers all the sources in the catalogue. For a single X-ray sources, a set of counterpart may be listed (not unique). “A” refers to all sources matched to their potential best optical counterpart. Each X-ray source is listed only once (Eq. (1)). “T” refers to sources that are candidate targets for optical spectroscopic observation (Eq. (2)). “O” refers to observed sources (Eq. (3)). “I” refers to identified sources (Eq. (4)). “Blazar no Z” refers to sources identified as BLAZAR for which we could not measure the redshift (Eq. (11)). “Z” refers to sources with good redshift measurements (Eq. (12)). The last column gives the targets that are uniquely present in the XMMSL2 i.e. not in the 2RXS catalogue.
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