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Table 1
Main properties of the most famous X-ray surveys (see Fig. 1).
| Labela | Name | Area | Flux limit | Bandb | Reference |
| deg.2 | erg cm-2 s-1 | keV | |||
|
|
|||||
| Examples of deep pencil beam surveys | |||||
| G | CDFS | ~ 0.1 | 1.9 × 10-17 | 0.5–2 | Giacconi et al. (2001), Luo et al. (2008) |
| F | CDFN | ~ 0.1 | 2.5 × 10-17 | 0.5–2 | Brandt et al. (2001), Alexander et al. (2003) |
| H | XMM-Newton Lockman Hole | ~ 0.43 | ~ 1.9 × 10-16 | 0.5–2 | Worsley et al. (2004), Brunner et al. (2008) |
|
|
|||||
| Examples of wide shallow contiguous surveys | |||||
| N | E-CDF-S | ~ 0.3 | 1.1 × 10-16 | 0.5–2 | Lehmer et al. (2005) |
| M | ELAIS-S1 | ~ 0.6 | 5.5 × 10-16 | 0.5–2 | Puccetti et al. (2006) |
| L | XMM-COSMOS | ~ 2 | 1.7 × 10-15 | 0.5–2 | Hasinger et al. (2007), Cappelluti et al. (2007, 2009) |
| I | C-COSMOS | ~ 1 | 1.9 × 10-16 | 0.5–2 | Elvis et al. (2009) |
| O | AEGIS-X | 0.67 | 5 × 10-17 | 0.5–2 | Laird et al. (2009) |
|
|
|||||
| Examples of surveys based on serendipitous sources in archival data | |||||
| A | Hellas2XMM | 3 | 5.9 × 10-16 | 0.5–2 | Baldi et al. (2002) |
| C | SEXSI | ~ | 5 × 10-16 | 2–10 | Harrison et al. (2003) |
| D | XMM-BSS | 28.1 | 7 × 10-14 | 0.5–4.5 | Della Ceca et al. (2004) |
| E | AXIS | 4.8 | ~2 × 10-15 | 2–10 | Carrera et al. (2007) |
| P | SXDS | 1.14 | 6 × 10-16 | 0.5–2 | Ueda et al. (2008) |
| B | CHAMP | ~10 | ~10-15 | 0.5–2 | Kim et al. (2007) |
| Q | TwoXMM (| b | ≥ 20) | ~132.3 | ~2 × 10-15 | 0.5–2 | Mateos et al. (2008) |
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