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Table 5:

Median V magnitude, the average of error estimates $\langle \sigma_V \rangle$, luminosity in the Johnson V filter, $\alpha _{{\rm OX}}$, the number of photometric points and contamination flag (``Y'' indicates potential contamination by a nearby star up to 0.2 mag; see text for details).
Name V [mag] $\langle \sigma_V \rangle$ [mag] $\log$ LV [erg s-1] $\alpha _{{\rm OX}}$ N Cont. flag
Mrk 348 13.76 0.05 42.71 1.01 81 Y
NGC 788 12.60 0.04 43.09 1.14 1342  
NGC 985 13.73 0.05 43.66 1.13 644  
NGC 1052 11.38 0.03 42.70 1.31 1004  
NGC 1068 9.99 0.02 44.80 1.38 693  
NGC 1275 12.51 0.04 43.27 1.21 856  
NGC 1365 11.51 0.05 42.72 1.27 35  
3C 120 14.00 0.05 43.31 1.02 216  
UGC 3142 15.12 0.22 43.49 0.93 259  
ESO 33-2 13.99 0.09 42.78 1.09 40  
Mrk 3 12.88 0.04 42.95 1.08 425 Y
Mrk 6 13.68 0.06 42.94 1.07 657  
QSO B0716+714 14.27 0.09 45.26 1.19 1116  
ESO 209-12 14.60 0.21 43.24 1.07 387  
PG 0804+761 14.07 0.08 44.28 1.09 299  
4U 0937-12 12.66 0.03 42.56 1.12 443  
MCG-05-23-016 13.12 0.05 42.47 1.03 1514  
NGC 3227 12.06 0.04 42.21 1.11 12  
NGC 3281 12.67 0.04 42.85 1.16 316  
Mrk 421 13.05 0.06 43.58 0.91 3112  
NGC 4051 12.26 0.04 41.67 1.20 76  
NGC 4138 11.87 0.04 42.06 1.26 585  
NGC 4151 11.52 0.04 42.28 1.03 7461  
Mrk 50 14.47 0.09 42.86 1.11 774 Y
NGC 4388 12.26 0.06 42.80 1.05 509  
NGC 4395 14.09 0.11 40.23 1.05 7  
3C 273 12.58 0.04 45.31 1.05 2010 Y
IGR J12391-1612 14.15 0.06 43.34 1.05 104  
NGC 4593 12.24 0.04 42.83 1.14 1204  
ESO 323-32 13.11 0.07 43.03 1.20 158 Y
3C 279 15.52 0.11 45.29 1.01 294  
Mrk 783 15.39 0.16 43.39 1.01 37  
NGC 4945 12.44 0.17 41.43 1.04 327  
IGR J13091+1137 13.70 0.05 43.18 1.07 15  
NGC 5033 11.57 0.03 42.16 1.33 55  
ESO 383-18 14.33 0.08 42.32 1.09 673 Y
MCG-06-30-015 13.23 0.07 42.36 1.09 1268 Y
Mrk 268 14.30 0.06 43.37 1.08 7  
IC 4329A 13.20 0.05 43.00 0.98 501  
NGC 5506 12.93 0.05 42.38 1.03 701  
NGC 5548 13.14 0.05 43.08 1.17 256  
H 1426+428 16.11 0.25 43.72 0.98 619  
NGC 5995 13.47 0.07 43.29 1.05 118 Y
ESO 138-1 13.59 0.11 42.34 1.20 12 Y
NGC 6221 11.91 0.07 42.49 1.33 16  
Mrk 501 13.21 0.04 43.65 1.07 567  
NGC 6300 11.52 0.05 42.38 1.19 31  
3C 390.3 14.61 0.13 43.54 1.00 482 Y
1H 1934-063 13.35 0.05 42.59 1.10 12  
NGC 6814 12.42 0.04 42.31 1.14 134  
ESO 399-20 13.96 0.08 43.07 1.18 84  
Mrk 509 13.38 0.05 43.60 1.03 400  
NGC 7172 12.66 0.04 42.66 1.10 508  
Mrk 915 14.10 0.09 42.75 1.09 40  
1H 2251-179 14.20 0.09 43.83 0.98 1570 Y
NGC 7469 12.70 0.04 44.21 1.15 22  
MCG-02-58-022 14.13 0.06 43.59 1.01 93  

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