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Table 2
Fraction of spurious identifications and completeness for the 2XMM/USNO-B1.0 and 2XMM/2MASS cross-correlation in the XGPS area as a function of the individual probability threshold.
| 2MASS ident. prob. | |||||
|
|
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| 50% | 60% | 70% | 80% | 90% | |
| Spurious Fr. | 21.4 | 13.6 | 08.8 | 04.3 | 01.3 |
| Completeness | 76.7 | 66.6 | 57.2 | 44.1 | 27.4 |
|
|
|||||
| USNO-B1.0 ident. prob. | |||||
|
|
|||||
| 50% | 60% | 70% | 80% | 90% | |
| Spurious Fr. | 18.9 | 12.8 | 08.8 | 04.3 | 01.2 |
| Completeness | 86.2 | 79.1 | 71.1 | 57.5 | 39.4 |
Notes. The spurious fraction and completeness values are given as a percentage.
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