Table 3
Cross-correlation statistics.
| Probability of identification cutoffs | ||||||
|
|
||||||
| id | 0.0 | 0.5 | 0.7 | 0.8 | 0.9 | 0.95 |
|
|
||||||
| # det_id | 60 567 | 53 347 | 49 527 | 46 387 | 40 193 | 32 610 |
| # src_id | 45 727 | 39 839 | 36 943 | 34 605 | 30 055 | 24 327 |
| R | 79.4% | 91.7% | 94.7% | 96.2% | 98.0% | 99.0% |
| C | 100.0% | 96.8% | 92.1% | 87.5% | 77.2% | 63.2% |
| Frac X | 62.1% | 54.1% | 50.2% | 47.0% | 40.8% | 33.0% |
Notes. Number of associations with all XMM detection (det_id) and all unique sources (src_id) with a probability of identification above a given probability of identification. If an X-ray source has several candidates, we only keep the one with the best probability of identification. Sample reliability (R) and sample completeness (C): we only consider the best match for each unique XMM sources having at least one counterpart. Frac X is the expected fraction of X-ray sources with a counterpart in the SDSS DR7 catalogue.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.