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Table 7.
Best-fitting parameters derived from spectral analysis of individual sources (see Sect. 4.3.1).
| ID | Γ | F0.5 − 2 keV | L2 − 10 keV |
|---|---|---|---|
| [10−15 erg cm−2s−1] | [1044 erg s−1] | ||
| New observations | |||
| CFHQS J0050+3445 |  |
 |
 |
| PSO J036+03 |  |
< 3.05 | < 20.53 |
| CFHQS J1509−1749 |  |
 |
 |
| CFHQS J1641+3755 ( * ) |  |
 |
 |
| PSO J338+29 |  |
 |
 |
| SDSS J2310+1855 |  |
< 3.34 | < 35.85 |
| Archival observations | |||
| SDSS J0100+2802 ( * ) |  |
 |
 |
| ATLAS J0142−3327 |  |
 |
 |
| SDSS J1030+0524 ( * ) |  |
 |
 |
| SDSS1048+5251 |  |
< 1.52 | < 7.79 |
| ULAS J1120+0641 ( * ) |  |
 |
 |
| SDSS J1148+5251 ( * ) |  |
 |
 |
| SDSS J1306+0356 ( * ) |  |
 |
 |
| ULAS J1342+0928 |  |
 |
 |
| SDSS J1602+4228 |  |
 |
 |
| SDSS J1623+3112 |  |
 |
 |
| SDSS J1630+4012 |  |
 |
 |
Notes. Errors correspond to the 90% confidence level for one parameter of interest (Avni 1976). ( * )These sources have > 30 net counts in the 0.5 − 7 keV band.
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