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Table 2

X-ray properties of the WISSH quasars.

SDSS Γ N H f 2−10 Log L2−10 Model X/O α OX
(1) (2) (3) (4) (5) (6) (7) (8)
J0045+1438 1.8f ≤ 22(4)b 0.69 44.24 APL∗ 0.3 −2.21
J0209-0005 ≤ 1.6 5.25 45.16 PL 2.3 −1.98
J0735+2659 ≤ 3.6 7.08 45.11 PL 1.4 −1.89
J0745+4734 ≤ 3.5 30.9 46.37 PL 7.2 −1.54
J0747+2739 1.8f ≤ 30(4)b 2.13 45.43 APL∗ 2.2 −1.72
J0801+5210 ≤ 0.8 2.66 45.25 PL 1.0 −1.95
J0900+4215 ≤ 2.3 13.5 46.00 PL 4.5 −1.66
J0904+1309 ≤ 0.8 9.04 45.89 PL 4.2 −1.66
J0947+1421 1.8f ≤ 16(0.5)b 1.61 45.01 APL∗ 0.7 −1.94
J1014+4300 ≤ 3.3 3.55 45.43 PL 0.9 −1.91
J1027+3543 1.8f ≤ 14(1)b 9.16 45.79 APL∗ 2.8 −1.74
J1057+4555 1.8f ≤ 17(4)b 4.62 45.77 APL∗ 2.7 −1.70
J1106+6400 ≤ 0.7 12.3 45.69 PL 2.2 −1.70
J1110+4831 ≤ 0.8 3.17 45.36 PL 0.9 −1.85
J1111+1336 ≤ 5.7 2.61 45.36 PL 1.4 −1.85
J1159+1337 1.8f ≤ 0.5 0.91c 45.04 APL∗ 0.7 −1.99
J1200+3126 1.8f ≤ 15(1)b 5.78 45.55 APL∗ 1.4 −1.71
J1201+0116 1.8f 40† ≤4.21‡ ≤45.54‡ − ≤2.5 ≥ −1.75
J1201+1206 1.8f ≤ 44(7)b 6.60 45.77 APL∗ 3.9 −1.68
J1210+1741 1.8f 40† ≤ 1.72‡ ≤ 45.25‡ − ≤1.5 ≥ −1.91
J1215-0034 5.25 45.33 APL 2.6 −1.62
J1236+6554 1.8f ≤ 0.5 2.55c 45.33 APL∗ 1.4 −1.86
J1245+0105 1.8f 1.84 45.03 APL∗ 2.3 −1.80
J1249-0159 1.8f ≤ 56(1)b 1.25 45.08 APL∗ 1.1 −1.89
J1250+2631 ≤ 0.3 29.9 45.94 PLa 3.0 −1.55
J1328+5818 1.8f 2.19 45.22 APL∗ 4.2 −1.77
J1333+1649 1.8f 25.7 45.83 APL 4.6 −1.62
J1421+4633 1.8f 1.72 45.18 APL 0.9 −1.79
J1422+4417 1.8f 40† ≤ 1.84‡ ≤ 45.28‡ − ≤1.4 ≥−1.98
J1426+6025 ≤ 0.8 7.76 45.72 PL 1.7 −1.83
J1433+0227 1.8f 40† ≤ 0.97‡ ≤ 45.22‡ − ≤1.5 ≥ −1.86
J1441+0454 2.95 44.84 APL 1.4 −1.85
J1506+5220 1.8f 40† ≤ 1.05‡ ≤ 45.14‡ − ≤1.5 ≥−1.92
J1513+0855 ≤ 13.4 7.94 45.60 PL 3.9 −1.85
J1521+5202 3.52 44.85 APL 0.4 −2.02
J1538+0855 1.8f 40† ≤ 1.75‡ ≤ 45.24‡ − ≤0.8 ≥−1.91
J1549+1245 3.98 45.34 APL 2.5 −1.83
J1621-0042 1.8f 10.7 46.04 APL∗ 6.1 −1.58
J1639+2824 1.8f 4.08 45.67 APL∗ 2.2 −1.87
J1701+6412 6.61 45.75 APL 1.0 −1.67
J2123-0050 ≤ 0.4 9.16 45.43 PL 2.2 −1.80

Notes. Columns give the following information: (1) SDSS name; (2) X-ray photon index; (3) absorption NH (in units of 1022 cm-2); (4) 2–10 keV fluxes (in units of 10-14 erg cm-2 s-1); (5) 2–10 keV unabsorbed luminosities (in units of Log[L/ erg s-1]); (6) hard X-ray fluxes and luminosities were derived by using the NH value from HR and Γ = 1.8 or from spectral analysis (models: PL = power law, APL = absorbed power law); (7) X-ray-to-optical flux ratios (X/O) in units of 10-2; and (8) αOXvalues. ∗ Based on HR analysis. f: frozen value. a Best-fit model consists of a power law plus cold reflection component. b Value shown in parentheses indicates the NH inferred from the HR computed with the measured soft and hard fluxes. See Sect. 3.1 for further details. c Flux derived by assuming the upper limit value on NH. † X-ray undetected sources. NH = 4 × 1023 cm-2 is assumed. ‡ For the calculation of fluxes and luminosities, the upper limit on count rates listed in Table 1 is assumed.

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