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Table 9

QSO2 candidates from Zakamska et al. (2003), Reyes et al. (2008) and X-ray selected samples matching 2XMMi entries with EPIC pn observations.

2XMMi name id prob z u − g g − i HR 2 (pn) Log(LX) Log(fx/fr)
Zakamska et al. (2003)
2XMM J005621.6+003235Tck 0.964 0.484 1.891  ±  0.643 1.800  ±  0.061 –0.56  ±  0.28 42.78 –0.626
2XMMi J011522.2+00151 0.997 0.390 6.023  ±  1.239 2.437  ±  0.046 0.73  ±  0.04 44.26 0.566
2XMM J015716.9-005305 0.988 0.540 0.565  ±  0.167 1.836  ±  0.050 –0.18  ±  0.46 42.78 0.285
2XMM J021047.0-100152 0.999 0.540 0.348  ±  0.136 1.771  ±  0.047 0.66  ±  0.12 44.40 0.980
2XMM J103951.5+643005Tck 0.991 0.402 0.490  ±  0.075 1.209  ±  0.027 –0.68  ±  0.33 43.02 –0.353
2XMM J122656.4+013124 0.998 0.732 0.970  ±  0.256 1.134  ±  0.056 0.76  ±  0.06 44.83 1.063
2XMM J164131.6+385841 0.995 0.596 0.550  ±  0.112 1.768  ±  0.028 0.63  ±  0.05 44.96 1.245
Additional candidates from Reyes et al. (2008)
2XMMi J075821.2+392337Tck 0.912 0.216 0.620  ±  0.026 0.891  ±  0.010 –0.04  ±  0.27 42.37 –1.058
2XMM J093952.7+355358 1.000 0.137 1.527  ±  0.051 1.534  ±  0.007 –0.08  ±  0.06 43.44 –0.040
2XMM J094506.4+035552Tck 0.995 0.156 0.979  ±  0.043 1.092  ±  0.025 –1.00  ±  0.28 41.63 –1.730
2XMM J100327.8+554155 0.991 0.146 1.390  ±  0.066 1.340  ±  0.010 –1.00  ±  0.17 42.40 –0.772
2XMM J103408.5+600152Tck 1.000 0.051 1.408  ±  0.009 0.888  ±  0.003 –0.48  ±  0.05 42.29 –1.232
2XMM J103456.3+393939Tck 0.995 0.151 1.465  ±  0.049 1.412  ±  0.007 –0.68  ±  0.29 42.88 –0.512
2XMM J122709.8+124855 0.998 0.194 1.728  ±  0.162 1.808  ±  0.010 –0.66  ±  0.27 42.88 –0.686
2XMM J131104.6+272806 0.998 0.240 1.272  ±  0.070 1.702  ±  0.010 –0.34  ±  0.07 42.94 –0.784
2XMM J132419.8+053704Tck 0.997 0.203 0.441  ±  0.027 1.226  ±  0.009 0.01  ±  0.47 42.24 –1.290
2XMM J171350.7+572955Tck 0.883 0.113 1.279  ±  0.025 1.396  ±  0.006 –0.69  ±  0.21 42.10 –1.201
X-ray selected QSO2
2XMM J113148.6+311400 0.995 0.50 0.724  ±  0.491 1.654  ±  0.091 0.71  ±  0.16 44.70 1.437
2XMM J122656.4+013124 0.998 0.73 0.970  ±  0.256 1.134  ±  0.056 0.76  ±  0.06 44.83 1.063
2XMM J134656.6+580316 0.965 0.37 1.472  ±  0.538 2.443  ±  0.069 0.53  ±  0.23 43.88 0.057
2XMM J160645.9+081523 0.960 0.62 0.919  ±  1.085 2.565  ±  0.216 0.81  ±  0.26 44.80 1.607
2XMM J204043.2 − 004548 0.336 0.62 1.448  ±  2.334 2.581  ±  0.304 0.70  ±  0.11 44.72 1.518

Notes. The source 2XMM J122656.4+013124 is present both in the optically selected and in the X-ray selected QSO2 sample.

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