Table 1
Flux limited X-ray cluster surveys.
| Name | Flux limit | Solid angle | Number of sources | Reference |
| cgs (0.5−2 keV) | deg2 | |||
|
|
||||
| SEXCLAS | 0.6 × 10-14 (min) | 2.1 | 19 | Kolokotronis et al. (2006) |
| DCS | 0.6 × 10-14 (min) | 5.55 | 36 | Boschin (2002) |
| ChaMP | 1.0 × 10-14 (min) | 13.0 | 49 | Barkhause et al. (2006) |
| SXCS | 1.0 × 10-14 (min) | 40.0 | 72 | This work |
| XDCP | 1.0 × 10-14 (average) | 76.0 | 22 (z > 0.9) | Fassbender et al. (2011) |
| XCLASS | 2 × 10-14 (min) | 90.0 | 347 | Clerc et al. (2012) |
| Peterson09 | ~0.3 × 10-14 (min) | 163.4 | 462 | Peterson et al. (2009) |
| XCS | >300 net cts | 410.0 | 993 | Lloyd-Davies et al. (2011) |
|
|
||||
| SXDF | 0.2 × 10-14 (min) | 1.3 | 57 | Finoguenov et al. (2010) |
| COSMOS | 0.2 × 10-14 (min) | 2.1 | 72 | Finoguenov et al. (2007) |
| XMM-BCS | 0.6 × 10-14 (min) | 6.0 | 46 | Suhada et al. (2012) |
| XMM-LSS | ~10-14 (min) | 11.0 | 66 | Adami et al. (2011) |
Notes. List of X-ray flux limited cluster surveys based on Chandra or XMM data, updated at the time of writing (May 2012), plus the Swift/XRT Cluster Survey presented in this work (highlighted in bold). Surveys based on archival data are listed in the upper part of the table, while dedicated (contiguous) surveys are shown in the lower part. Surveys are ranked according to the total solid angle. The total number of clusters refer to the X-ray selected only, while the quoted solid angle is the maximum covered by the survey. Note that the limiting soft fluxes quoted in this table (when available) may refer to the lowest value in the sample (minimum) or to an average value over the entire solid angle (average). For a full characterization of the survey depth, i.e., the sky coverage as a function of the flux, we refer to the corresponding papers.
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