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Table A.1

Spectral fit results.

Source Obs. ID Model NH(z) Γlow Γ Eb a b C1 C2 F-test/model
(1020 cm−2) (1022 cm−2) (keV) (@1–5 keV)
7C 1428+4218 Obs2003 PL 1.22 1.59 ± 0.02 1.03 1.10 1.21∕503
Obs2005 1.42 ± 0.02 1.05 1.01
Obs2003 BKN 1.22 1.70 ± 0.03 0.59 ± 0.10 1.01 1.07 0.94∕499 10−29/PL
                           
Obs2005 1.49 ± 0.03 1.03 0.99
Obs2003 LGP 1.22 1.52 ± 0.03 0.28 ± 0.06 1.01 1.07 1.05∕501 10−17/PL
Obs2005 1.36 ± 0.03 0.17 ± 0.06 1.03 0.99
Obs2003 PL+EX* 1.72 ± 0.03 1.00 1.07 0.94∕501
Obs2005 1.53 ± 0.03 1.03 0.99
Obs2003 LGP+EX 1.76 ± 0.06 1.00 1.07 0.93∕499 0.14/PL+EX
                           
Obs2005 1.59 ± 0.06 1.03 0.99
Obs2005 PL 1.22 1.53 ± 0.07 1.05 1.01 1.14∕385
Obs2014 1.42 ± 0.02 1.03 0.80
Obs2005 BKN 1.22 1.49 ± 0.03 1.03 0.99 1.01∕381 10−9/PL
                           
Obs2014 1.38 ± 0.10 1.03 1.01
Obs2005 LGP 1.22 1.36 ± 0.03 0.17 ± 0.06 1.03 0.99 1.05∕383 10−8/PL
Obs2014 1.46 ± 0.08 0.25 ± 0.13 1.03 1.08
Obs2005 PL+EX* 1.51 ± 0.03 1.03 0.99 1.03∕383
Obs2014 1.54 ± 0.07 1.03 0.82
Obs2005 LGP+EX 1.53 ± 0.08 − 0.03 ± 0.11 1.03 0.99 1.01∕381 0.01/PL+EX
Obs2014 1.48 ± 0.08 0.22 ± 0.13 1.03 1.06

QSO J0525–3343 Obs324 PL 2.45 1.51 ± 0.02 1.05 1.04 1.09∕675
Obs583 1.54 ± 0.03 1.05 1.11
Obs588 1.52 ± 0.03 1.07 1.05
Obs324 BKN 2.45 1.60 ± 0.05 1.03 1.02 1.00∕669 10−12/PL
                           
Obs583 1.59 ± 0.04 1.03 1.10
Obs588 1.59 ± 0.04 1.05 1.03
Obs324 LGP 2.45 1.56 ± 0.03 0.18 ± 0.06 1.03 1.02 1.02∕672 10−12/PL
Obs583 1.59 ± 0.04 0.19 ± 0.08 1.03 1.09
Obs588 1.57 ± 0.04 0.18 ± 0.09 1.05 1.03
Obs324 PL+EX* 1.59 ± 0.03 1.03 1.02 1.00∕673
Obs583 1.62 ± 0.03 1.03 1.10
Obs588 1.60 ± 0.03 1.05 1.03
Obs324 LGP+EX 1.03 1.02 1.01∕670
                           
Obs583 1.03 1.09
Obs588 1.05 1.03

QSO B1026-084 PL 5.28 1.39 ± 0.02 1.00 1.01 1.18∕257
BKN 5.28 1.16 ± 0.09 1.49 ± 0.04 0.99 0.99 1.08∕255 10−6/PL
LGP 5.28 1.30 ± 0.04 0.99 0.99 1.11∕256 10−6/PL
PL+EX* 1.46 ± 0.04 0.99 0.99 1.11∕255
                           
LGP+EX 0.09 ± 0.13 0.99 0.99 1.11∕254
                           

QSO B0014+810 PL 22.2 1.50 ± 0.02 1.01 1.04 1.03∕376
BKN 22.2 insensitive 1.49 ± 0.02 1.01 1.04 1.01∕372 0.04/PL
                           
LGP 22.2 1.51 ± 0.03 − 0.03 ± 0.05 1.01 1.04 1.03∕373 0.27/PL
                           
PL+EX* <22.1b <0.84 1.48 ± 0.03 1.01 1.04 1.03∕374
PL 22.2 1.50 ± 0.02 1.01 1.04 1.01∕844
Obs2014 1.72 ± 0.05 0.98 0.76
Obs2015 1.61 ± 0.04 1.00 0.90
BKN 22.2 insensitive 1.49 ± 0.02 1.01 1.04 0.97∕838 10−7/PL
                           
Obs2014 1.30 ± 0.26 1.77 ± 0.05 0.98 0.90
                           
Obs2015 1.64 ± 0.05 1.00 1.03
LGP 22.2 1.51 ± 0.03 − 0.02 ± 0.05 1.01 1.04 0.98∕841 10−7/PL
Obs2014 1.66 ± 0.05 0.21 ± 0.09 0.98 0.93
Obs2015 1.54 ± 0.06 0.20 ± 0.09 1.00 1.11
PL+EX* <0.54 1.01 1.03 1.02∕842
                           
Obs2014 0.98 0.76
                           
Obs2015 1.61 ± 0.04 1.00 0.90
LGP+EX < 21.9b < 0.62 1.47 ± 0.12 0.02 ± 0.11 1.01 1.04 0.98∕839 10−7/PL+EX
Obs2014 1.65 ± 0.06 0.22 ± 0.09 0.98 0.94
Obs2015 1.53 ± 0.06 0.21 ± 0.09 1.00 1.11

PKS 2126–158 PL 6.15 1.32 ± 0.01 1.09 1.12 1.54∕394
BKN 6.15 1.44 ± 0.03 1.06 1.09 1.02∕392 10−36/PL
LGP 6.15 1.18 ± 0.02 0.30 ± 0.04 1.06 1.09 1.11∕393 10−30/PL
PL+EX* >5.26b 1.45 ± 0.02 1.06 1.09 0.99∕392
LGP+EX 0.03 ± 0.07 1.06 1.09 0.99∕391 0.44/PL+EX
                           

QSO B0537–286 Obs00 PL 2.42 1.30 ± 0.01 1.03 1.04 1.11∕776
Obs05 1.18 ± 0.02 1.05 0.99
Obs00 BKN 2.42 1.35 ± 0.02 1.18 ± 0.04 1.04 1.05 1.01∕770 10−14/PL
                           
Obs00 BKN 2.42 1.35 ± 0.02 1.18 ± 0.04 1.04 1.05 1.01∕770 10−14/PL
Obs05 1.21 ± 0.02 1.04 0.98
Obs00 LGP 2.42 1.34 ± 0.02 − 0.10 ± 0.03 1.04 1.05 1.05∕772 10−9/PL
Obs05 1.13 ± 0.03 1.04 0.98
Obs00 PL+EX <2.53b <0.18 1.30 ± 0.01 1.03 1.04 1.11∕774
Obs05 1.18 ± 0.02 1.05 0.99
Obs00 LGP+EX* 1.43 ± 0.04 1.04 1.05 1.02∕770 10−13/PL+EX
Obs05 1.22 ± 0.04 0.01 ± 0.06 1.04 0.98

QSO B0438–43 PL 1.41 1.45d 1.14 1.15 2.48∕286
BKN 1.41 1.62 ± 0.02 1.07 1.08 1.06∕284 10−53/PL
LGP 1.41 1.29 ± 0.03 0.53 ± 0.06 1.07 1.08 1.45∕285 10−35/PL
PL+EX* 1.71 ± 0.03 1.06 1.07 0.97∕284
LGP+EX − 0.11 ± 0.09 1.06 1.07 0.96∕283 0.07/PL+EX

RBS 315 Obs2003 PL 16.3 1.12d 1.09 1.10 2.25∕1376
Obs2013a 1.30d 1.10 1.11
Obs2013b 1.29d 1.10 1.14
Obs2003 BKN 16.3 1.23 ± 0.02 1.07 1.08 1.10∕1370 10−210/PL
                           
Obs2013a 0.82 ± 0.05 1.43 ± 0.01 1.08 1.09
Obs2013b 1.41 ± 0.02 1.17 ± 0.07 1.07 1.11
Obs2003 LGP 16.3 0.91 ± 0.03 0.33 ± 0.04 1.06 1.07 1.21∕1373 10−184/PL
Obs2013a 1.08 ± 0.02 0.38 ± 0.02 1.07 1.09
Obs2013b 1.07 ± 0.02 0.36 ± 0.03 1.07 1.11
Obs2003 PL+EX >18.4b 1.25 ± 0.01 1.07 1.08 1.11∕1374
Obs2013a 1.45 ± 0.01 1.08 1.09
Obs2013b 1.42 ± 0.01 1.07 1.11
Obs2003 LGP+EX* >17.3b 1.14 ± 0.04 0.11 ± 0.04 1.06 1.07 1.08∕1371 10−10/PL+EX
Obs2013a 1.32 ± 0.03 0.14 ± 0.04 1.07 1.09
Obs2013b 1.31 ± 0.03 1.07 1.11
Obs2003 PL 16.3 1.12 ± 0.01 1.09 1.10 1.70∕2726
Obs2013a 1.30 ± 0.01 1.10 0.12
Obs2013b 1.29 ± 0.01 1.10 1.14
Obs2014 1.49 ± 0.02 0.99 0.61
Obs2015 1.61 ± 0.02 1.01 0.52
Obs2003 BKN 16.3 1.23 ± 0.02 1.07 1.08 1.05∕2716 10−278/PL
                           
Obs2013a 0.82 ± 0.05 1.43 ± 0.01 1.08 1.09
Obs2013b 1.41 ± 0.02 1.17 ± 0.07 1.07 1.11
Obs2014 1.07 ± 0.09 0.99 0.89
                           
Obs2015 1.01 ± 0.12 1.01 0.97
Obs2003 LGP 16.3 0.91 ± 0.03 0.33 ± 0.04 1.06 1.07 1.10∕2721 10−255/PL
Obs2013a 1.08 ± 0.02 0.38 ± 0.02 1.07 1.09
Obs2013b 1.07 ± 0.02 0.36 ± 0.03 1.07 1.11
Obs2014 1.37 ± 0.03 0.25 ± 0.05 0.99 0.86
Obs2015 1.45 ± 0.03 0.37 ± 0.06 1.01 0.89
Obs2003 PL+EX >18.5b 1.25 ± 0.01 1.07 1.08 1.09∕2724
Obs2013a 1.45 ± 0.01 1.08 1.09
Obs2013b 1.43 ± 0.01 1.07 1.11
Obs2014 1.51 ± 0.02 1.03 0.82
Obs2015 1.62 ± 0.02 1.03 0.82
Obs2003 LGP+EX* >17.5b 1.15 ± 0.04 0.11 ± 0.04 1.06 1.07 1.03∕2719 10−32/PL+EX
Obs2013a 1.33 ± 0.03 0.13 ± 0.03 1.07 1.09
Obs2013b 1.31 ± 0.03 0.13 ± 0.04 1.07 1.11
Obs2014 1.40 ± 0.03 0.20 ± 0.05 0.99 0.85
Obs2015 1.47 ± 0.04 0.33 ± 0.06 1.01 0.89

QSO J2354–1513 PL 2.78 1.51 ± 0.02 1.05 1.05 1.29∕326
BKN 2.78 1.57 ± 0.02 0.53 ± 0.08 1.04 1.03 1.04∕324 10−16/PL
LGP 2.78 1.43 ± 0.02 0.23 ± 0.05 1.03 1.02 1.11∕325 10−12/PL
PL+EX* 1.03 1.02 1.02∕324
                           
LGP+EX − 0.03 ± 0.10 1.03 1.02 1.03∕323
                           

PBC J1656.2–3303 PL 33.1 1.13 ± 0.01 1.05 1.03 1.24∕420
BKN 33.1 1.19 ± 0.02 1.44 ± 0.20 1.04 1.02 1.13∕418 10−9/PL
                           
LGP 33.1 0.99 ± 0.04 0.18 ± 0.05 1.04 1.02 1.16∕419 10−7/PL
PL+EX* >33.7a < 1.14 1.20 ± 0.02 1.04 1.02 1.14∕418
LGP+EX > 29.3b < 1.40 1.04 1.02 1.15∕417
PL 33.1 1.13 ± 0.01 1.05 1.03 1.25∕690
Obs2015 1.53 ± 0.04 1.04 0.79
BKN 33.1 1.19 ± 0.02 1.04 1.02 1.08∕686 10−21/PL
Obs2015 1.60 ± 0.05 1.04 1.07
LGP 33.1 0.99 ± 0.04 0.18 ± 0.05 1.04 1.02 1.12∕688 10−17/PL
Obs2015 1.40 ± 0.05 0.36 ± 0.09 1.04 1.13
PL+EX >35.3b 1.21 ± 0.02 1.04 1.02 1.15∕688
Obs2015 1.55 ± 0.04 1.04 0.84
LGP+EX >33.1b <1.05 1.18 ± 0.09 1.04 1.02 1.11∕686
Obs2015 1.43 ± 0.06 0.31 ± 0.09 1.04 1.12
LGP+EX*,e >34.5b 1.20 ± 0.02 0 1.04 1.02 1.11∕687 10−8/PL+EX
Obs2015 1.43 ± 0.06 0.31 ± 0.09 1.04 1.12

QSO J0555+3948 PL 42.5 1.68 ± 0.03 1.08 1.09 1.14∕290
BKN 42.5 1.08 1.09 1.01∕288 10−8/PL
LGP 42.5 1.94 ± 0.07 − 0.39 ± 0.09 1.09 1.10 0.99∕289 10−10/PL
PL+EX <37.0b <0.16 1.58 ± 0.03 1.08 1.09 1.03∕288
LGP+EX* <43.7b <0.93 1.09 1.09 0.99∕287 10−4/PL+EX
                           

PKS 2149–306 PL 1.74 1.44 ± 0.01 1.02 1.02 1.01∕444
BKN 1.74 1.45 ± 0.01 1.03 1.02 1.00∕442
                           
LGP 1.74 1.45 ± 0.01 − 0.02 ± 0.02 1.03 1.02 1.00∕443
PL+EX* <1.89b < 0.04 1.44 ± 0.01 1.03 1.02 1.01∕444
PL 1.74 1.44 ± 0.01 1.02 1.02 1.05∕2741
Obs2013 1.35 ± 0.01 1.06 0.73
Obs2014 1.44 ± 0.01 0.99 0.68
BKN 1.74 1.45 ± 0.01 1.03 1.02 0.96∕2735 10−49/PL
                           
Obs2013 1.37 ± 0.01 1.06 0.93
Obs2014 1.46 ± 0.01 0.99 0.97
LGP 1.74 1.45 ± 0.01 − 0.02 ± 0.02 1.03 1.02 0.98∕2738 10−39/PL
Obs2013 1.28 ± 0.02 0.13 ± 0.02 1.06 0.91
Obs2014 1.35 ± 0.02 0.16 ± 0.03 0.99 0.89
PL+EX >1.65b <0.08 1.46 ± 0.01 1.02 1.02 1.05∕2739
Obs2013 1.35 ± 0.01 1.06 0.74
Obs2014 1.44 ± 0.01 0.99 0.69
LGP+EX >1.54b <0.12 1.49 ± 0.03 − 0.06 ± 0.04 1.03 1.02 0.98∕2736
Obs2013 1.28 ± 0.02 0.12 ± 0.02 1.06 0.90
Obs2014 1.36 ± 0.02 0.15 ± 0.03 0.99 0.89
LGP+EX*,e < 0.06 1.44 ± 0.01 0 1.02 1.02 0.98∕2736 10−38/PL+EX
Obs2013 1.28 ± 0.02 0.13 ± 0.02 1.06 0.91
Obs2014 1.35 ± 0.02 0.16 ± 0.03 0.99 0.89

QSO B0237–2322 PL 2.33 1.74 ± 0.02 1.01 1.05 0.95∕304
BKN 2.33 1.75 ± 0.03 insensitive 1.01 1.05 0.95∕302
LGP 2.33 1.74 ± 0.02 − 0.02 ± 0.05 1.01 1.05 0.96∕303
PL+EX*,g < 2.60b < 0.11 1.73 ± 0.03 1.01 1.05 0.96∕414
4C 71.07 PL 3.16 1.33 ± 0.01 1.08 1.08 1.24∕501
BKN 3.16 1.38 ± 0.01 1.07 1.07 1.09∕499 10−14/PL
LGP 3.16 1.29 ± 0.01 0.08 ± 0.02 1.07 1.07 1.09∕500 10−15/PL
PL+EX >3.30b 1.36 ± 0.01 1.07 1.08 1.13∕499
LGP+EX* <0.07 1.30 ± 0.03 0.07 ± 0.03 1.07 1.07 1.09∕498 10−4/PL+EX
PL 3.16 1.33 ± 0.01 1.08 1.08 1.17∕2123
Obs2013 1.64 ± 0.02 1.04 0.65
Obs2014 1.62 ± 0.01 1.02 0.68
BKN 3.16 1.38 ± 0.01 1.07 1.07 1.04∕2117 10−54/PL
                           
Obs2013 1.68 ± 0.02 1.04 0.86
                           
Obs2014 1.65 ± 0.02 1.02 1.04
LGP 3.16 1.29 ± 0.01 0.08 ± 0.02 1.07 1.07 1.05∕2120 10−49/PL
Obs2013 1.58 ± 0.02 0.17 ± 0.04 1.04 0.85
Obs2014 1.53 ± 0.02 0.20 ± 0.03 1.02 0.96
PL+EX >3.40b 1.37 ± 0.01 1.07 1.07 1.12∕2121
Obs2013 1.65 ± 0.02 1.04 0.67
Obs2014 1.63 ± 0.02 1.02 0.71
LGP+EX*,g >3.09b <0.06 1.32 ± 0.02 1.07 1.08 1.04∕2973 10−30/PL+EX
Obs2013 1.58 ± 0.03 0.16 ± 0.04 1.04 0.85
Obs2014 1.54 ± 0.03 0.19 ± 0.03 1.02 0.96
PKS 0528+134 Obs501 PL 38.5 1.41 ± 0.05 1.03 1.18∕620
Obs601 1.37 ± 0.03 1.02 1.05
Obs701 1.39 ± 0.04 0.94 1.03
Obs501 BKN 38.5 1.04 1.00∕614 10−21/PL
                           
Obs601 1.00 1.04
                           
Obs701 0.91 1.00
Obs501 LGP 38.5 1.13 ± 0.15 0.40 ± 0.19 1.03 1.01∕617 10−21/PL
Obs601 1.01 ± 0.08 0.53 ± 0.10 1.00 1.03
Obs701 1.14 ± 0.12 0.35 ± 0.17 0.92 1.01
Obs501 PL+EX* >35.3b 1.56 ± 0.08 1.04 0.99∕618
Obs601 1.55 ± 0.04 1.00 1.04
Obs701 1.56 ± 0.05 0.91 1.00
Obs501 LGP+EX 1.04 0.99∕615 0.35/PL+EX
                           
Obs601 1.00 1.04
                           
Obs701 0.91 1.00
                           

Notes. XMM-Newton data were analysed in the 0.2−10 keV energy range for the EPIC-pn detector and 0.3−10 keV for EPIC-MOS detectors. For blazars with also NuSTAR observation(s) additional rows were added for the broadband 0.2− 79 keV fits. The first two columns show the source and the specific observation, if more than one (see Appendix B for abbreviations), which is highlighted in bold if referred to Swift-XRT+NuSTAR data. The third column shows the models used (PL = simple power-law with Galactic absorption; BKN = broken power-law with Galactic absorption; LGP = log-parabola with Galactic absorption; EX = cold excess absorption fixed at the source’s redshift). The reference model for each blazar is highlighted in italics and labelled with an asterisk, comments in the text. In the fourth column, the Galactic value was either fixed (Willingale et al. 2013) or free to vary between a ± 15% of the fixed value (when errors are reported). When fitted, the excess column density (in unity of 1022 cm−2) is reported in the fifth column. Columns 6, 7 and 8 represent, in the BKN model, the low- and high-energy photon index and the energy break, respectively. The seventh column shows also the photon index in the simple PL scenario. The ninth column, in the LGP model, represents the slope at the pivot energy, fixed at 1 keV in XMM-Newton spectra and at 5 keV for NuSTAR spectra. The tenth column show the curvature term in the LGP scenario. In columns 11 and 12, C1 and C2 are the two floating constants representing the cross-normalization parameter among the different cameras. They are referred to MOS1 and MOS2, respectively, in XMM-Newton fits and to FPMB and Swift-XRT, respectively, in the broadband fit. The last column shows the F-test p-value computed with respect to a specific model, reported aside. Errors and upper limits were computed at 90% confidence level (Δ χ2 = 2.706) within XSPEC, unless otherwise stated. (a)The fit is insensitive to the Galactic value between the ± 15% boundaries. (b)The Galactic value was left free to vary between the ± 15% boundaries of the tabulated value (Willingale et al. 2013). The fitted upper/lower limit has also the lower/upper 15% bound. (c) The excess column density can be better constrained to fixing bobs05 = 0 in the LGP+EX fit. (d)An error calculation could not be computed due to the high reduced chi-square value. (e) This LGP+EX fit was performed fixing bXMM = 0, since the reference model for XMM-Newton data is PL+EX. (f)These errors were computed at 1-sigma confidence level within XSPEC. (g) Fit performed with RGS data added to the analysis, to improve the accuracy of the excess column. The F-test reported, if any, is computed without these data.

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