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Table A.1

Intrinsic column densities of the BAT6ext sample.

GRB z NH(z) Γ NH(Gal) Time-interval Obs. mode Γnew
(1021 cm-2) (1020 cm-2) (s) (exposure time in ks) (1021 cm-2) (1020 cm-2)
050318 1.44 1.94 ± 0.09 1.87 3000−7 × 104 PC(23.4) 1.96 1.94 ± 0.09
050401 2.90 1.86 ± 0.05 4.40 200−2000 WT(1.4) 5.45 1.86 ± 0.05
050416A 0.654 1.97 ± 0.10 2.45 400−3 × 105 PC(92.3) 2.67 1.97 ± 0.10
050525A 0.606 1.97 ± 0.16 9.08 6000−3 × 105 PC(18.7) 12.6 1.96 ± 0.16
050802 1.71 1.80 ± 0.11 1.85 400−2000 PC(1.5) 1.96 1.80 ± 0.11
050922C 2.198 2.12 ± 0.10 5.40 400−3 × 105 PC(35.1) 7.58 2.14 ± 0.10
060206 4.048 2.00 ± 0.31 0.93 700−105 PC(4.5) 0.917 1.99 ± 0.30
060210 3.91 1.99 ± 0.05 6.08 3000−106 PC(76.8) 8.64 2.00 ± 0.05
060306 1.55 1.77 ± 0.26 3.44 300−925 PC(0.6) 3.84 1.77 ± 0.25
060614 0.125 1.77 ± 0.08 1.88 4400−106 PC(204.3) 1.99 1.77 ± 0.07
060814 1.923 1.96 ± 0.07 2.33 250−500 WT(0.2) 2.58 1.96 ± 0.07
060904A − 3.42 ± 0.37 1.33 185−225 WT(0.04) 1.39 3.42 ± 0.37
060908 1.884 2.07 ± 0.19 2.35 200−105 PC(11.6) 2.55 2.07 ± 0.19
060912A 0.94 1.92 ± 0.18 3.85 200−2000 PC(1.7) 4.70 1.93 ± 0.18
060927 5.467 1.85 ± 0.20 4.61 100−104 PC(3.5) 5.54 1.86 ± 0.20
061007 1.261 1.89 ± 0.02 1.77 90−2000 WT(1.9) 1.89 1.89 ± 0.02
061021 0.346 1.89 ± 0.06 4.53 3000−3 × 105 PC(83.1) 5.53 1.89 ± 0.09
061121 1.314 1.80 ± 0.06 4.00 600−3 × 105 PC(43.1) 4.63 1.80 ± 0.06
061222A 2.088 1.99 ± 0.09 9.02 3 × 104−2 × 105 PC(49.5) 12.60 2.00 ± 0.09
070306 1.496 1.77 ± 0.11 2.85 104−4 × 104 PC(6.0) 3.13 1.77 ± 0.11
070328 2.063 2.05 ± 0.04 2.61 350−1000 WT(0.7) 2.88 2.05 ± 0.04
070521 2.087 1.70 ± 0.19 2.92 3000−104 PC(1.9) 3.24 1.70 ± 0.19
071020 2.146 1.78 ± 0.07 5.12 70−300 WT(0.2) 6.25 1.79 ± 0.07
071112C 0.82 1.73 ± 0.08 7.44 90−280 WT(0.2) 11.1 1.75 ± 0.08
071117 1.33 1.95 ± 0.18 2.33 2900−6.2 × 104 PC(18.2) 2.52 1.97 ± 0.20
080319B 0.937 1.73 ± 0.02 1.11 800−2000 WT(0.9) 1.15 1.74 ± 0.02
080319C 1.95 1.56 ± 0.10 2.20 200−3 × 105 PC(24.3) 2.39 1.56 ± 0.10
080413B 1.10 1.89 ± 0.08 3.06 6 × 103 − 106 PC(98.5) 3.43 1.89 ± 0.08
080430 0.767 1.96 ± 0.09 0.96 5000−3 × 105 PC(44.6) 0.99 1.96 ± 0.09
080602 1.82 1.91 ± 0.14 3.51 200−800 PC(0.6) 4.00 1.91 ± 0.14
080603B 2.69 1.79 ± 0.10 1.24 100−250 WT(0.2) 1.27 1.79 ± 0.10
080605 1.64 1.66 ± 0.04 6.67 100−800 WT(0.6) 10.2 1.67 ± 0.04
080607 3.036 2.04 ± 0.12 1.69 4000−6 × 104 PC(19.7) 1.82 2.04 ± 0.12
080613B − ≷ 0.3 b 1.21 ± 0.10 3.17 105−190 WT(0.1) ≷ 0.27 b 3.55 1.20 ± 0.11
080721 2.591 1.72 ± 0.02 6.95 100−2000 WT(1.3) 9.27 1.73 ± 0.02
080804 2.20 1.73 ± 0.09 1.63 200−3 × 105 PC(41.0) 1.72 1.73 ± 0.09
080916A 0.689 2.09 ± 0.26 1.84 2 × 104 − 106 PC(110.2) 1.95 2.04 ± 0.18
081007 0.53 1.94 ± 0.16 1.37 5000−4 × 105 PC(46.9) 1.44 1.94 ± 0.16
081121 2.512 1.85 ± 0.07 4.03 3000−2 × 106 PC(128.0) 4.75 1.85 ± 0.07
081203A 2.10 1.69 ± 0.05 1.71 200−600 WT(0.4) 1.81 1.69 ± 0.05
081221 2.26 1.96 ± 0.09 2.03 300−500 WT(0.2) 2.17 1.96 ± 0.09
081222 2.77 1.93 ± 0.04 2.23 60−1000 WT(0.8) 2.37 1.93 ± 0.04
090102 1.547 1.66 ± 0.08 4.05 700−7 × 104 PC(19.3) 4.69 1.67 ± 0.08
090201 2.1 1.81 ± 0.14 4.94 3000−6000 WT,(0.2) 6.11 1.81 ± 0.15
090424 0.544 1.95 ± 0.08 1.86 2000−3 × 106 PC(213.1) 2.02 1.95 ± 0.08
090709 A 1.8 1.84 ± 0.11 6.62 4000−1.5 × 104 PC(4.4) 8.44 1.84 ± 0.11
090715B 3.00 1.92 ± 0.12 1.34 4000−105 PC(28.8) 1.40 1.92 ± 0.12
090812 2.452 2.08 ± 0.24 2.26 104−7 × 104 PC(8.6) 2.47 2.07 ± 0.24
090926B 1.24 1.88 ± 0.08 1.92 130−300 WT(0.2) 2.02 1.88 ± 0.08
091018 0.971 1.76 ± 0.11 2.81 150−1000 PC(0.9) 3.07 1.76 ± 0.11
091020 1.71 1.78 ± 0.10 1.39 200−400 WT(0.2) 1.45 1.78 ± 0.10
091127 0.49 1.77 ± 0.12 2.81 6000−2 × 104 PC(1.6) 3.11 1.74 ± 0.11
091208B 1.06 2.05 ± 0.25 4.86 200−600 PC(0.4) 5.75 2.06 ± 0.25
100615 A 1.398 2.25 ± 0.34 3.28 200−2000 PC(1.4) 3.74 2.25 ± 0.34
100621A 0.542 2.67 ± 0.09 2.89 130−200 WT(0.1) 3.19 2.68 ± 0.09
100728B 2.106 1.98 ± 0.19 6.17 4000−3 × 104 PC(8.5) 7.93 1.99 ± 0.19
110205A 2.22 2.02 ± 0.11 1.61 5000−5 × 104 PC(18.8) 1.70 2.02 ± 0.11
110503A 1.613 1.71 ± 0.05 2.63 200−700 WT(0.5) 2.84 1.71 ± 0.05
110709A − 1.92 ± 0.12 1.54 600−9000 PC(3.9) 1.61 1.93 ± 0.13
110709B <4 2.04 ± 0.06 5.58 104−2 × 105 PC(45.6) 6.91 2.04 ± 0.06
110915A − 1.90 ± 0.25 1.61 5000−8000 PC(1.5) 6.67 1.90 ± 0.25
111008A 4.99 1.81 ± 0.10 0.98 5000−3 × 104 PC(4.8) 0.992 1.81 ± 0.10
111228A 0.714 2.05 ± 0.09 2.96 4000−2 × 106 PC(144.8) 3.25 2.05 ± 0.08
120102A − 1.91 ± 0.08 10.30 4000−7 × 104 PC(18.1) 14.7 1.91 ± 0.08
120116A − 1.94 ± 0.23 4.64 300−6000 PC(1.5) 5.53 1.94 ± 0.23
120119A 1.728 1.65 ± 0.13 7.91 7000−2 × 105 PC(18.9) 11.30 1.67 ± 0.13
120326A 1.798 1.79 ± 0.06 5.24 4000−105 PC(21.4) 6.26 1.80 ± 0.06
120703A − 1.82 ± 0.14 1.21 3000−5 × 104 PC(9.8) 1.27 1.78 ± 0.13
120729A 0.8 1.68 ± 0.13 14.2 300−7000 PC(2.8) 21.5 1.70 ± 0.13
120802A 3.796 1.83 ± 0.17 9.65 100−1.5 × 104 PC(5.1) 14.6 1.87 ± 0.17
120811C 2.671 1.58 ± 0.15 2.09 200−1100 PC(0.9) 2.23 1.58 ± 0.15
120907A 0.97 1.81 ± 0.13 5.35 280−8000 PC(3.2) 7.26 1.82 ± 0.13
121123 A a − 1.85 ± 0.11 4.01 4500−42000 PC(14.9) 4.75 1.85 ± 0.11
2.7 1.82 ± 0.10 1.82 ± 0.10
121125A − 2.04 ± 0.12 1.27 4000−3.5 × 104 PC(13.2) 1.32 2.04 ± 0.12
121209A 2.1 1.79 ± 0.25 3.81 5000−7000 PC(1.4) 4.40 1.79 ± 0.25
130420A 1.297 2.16 ± 0.10 1.26 1000−2 × 105 PC(35.5) 1.30 2.16 ± 0.10
130427A 0.34 1.68 ± 0.04 1.80 2 × 104−2.5 × 106 PC(165.0) 1.91 1.68 ± 0.04
130427B 2.78 1.71 ± 0.19 4.40 200−2 × 104 PC(5.3) 5.35 1.71 ± 0.19
130502A − 2.05 ± 0.30 2.49 100−104 PC(1.7) 2.73 2.05 ± 0.30
130505A 2.27 1.77 ± 0.05 3.59 3000−105 PC(16.3) 4.03 1.77 ± 0.05
130527A − 1.46 ± 0.17 3.73 450−2000 PC(1.2) 4.34 1.46 ± 0.17
130606A 5.913 1.87 ± 0.13 1.98 5000−6 × 104 PC(16.5) 2.14 1.87 ± 0.13
130609B − 1.87 ± 0.12 1.45 5000−8000 PC(2.4) 1.51 1.87 ± 0.12
130701A 1.155 1.77 ± 0.14 6.93 1850−3.5 × 104 PC(6.6) 9.20 1.78 ± 0.14
130803A − 2.67 ± 0.31 4.15 4000−6 × 104 PC(11.3) 5.12 2.68 ± 0.31
130831A 0.479 1.74 ± 0.14 4.80 11 000−1.2 × 105 PC(11.5) 5.74 1.71 ± 0.14
130907A 1.238 1.82 ± 0.04 0.997 7000−1.5 × 105 PC(37.3) 1.03 1.82 ± 0.04
131030A 1.293 1.92 ± 0.10 4.70 4000−90 000 PC(9.6) 5.62 1.92 ± 0.10
131105A 1.686 1.83 ± 0.21 2.91 350−1100 PC(0.8) 3.25 1.83 ± 0.21
140102A − 1.77 ± 0.07 2.71 950−2300 WT(1.3) 3.04 1.77 ± 0.07
140206A 2.73 1.81 ± 0.06 4.79 104 − 105 PC(22.7) 6.99 1.83 ± 0.06
140215A − 1.65 ± 0.23 9.71 300−700 PC(0.4) 13.1 1.65 ± 0.23
140419A 3.956 1.83 ± 0.07 3.53 1500−20 000 PC(7.8) 3.93 1.84 ± 0.07
140506A 0.889 1.77 ± 0.08 7.67 5000−105 PC(18.9) 10.6 1.78 ± 0.08
140512A 0.725 1.81 ± 0.06 9.43 4500−7 × 104 PC(15.0) 14.7 1.83 ± 0.06
140619A − 2.09 ± 0.15 1.58 1700−25 000 PC(6.2) 1.65 2.09 ± 0.15
140628A − 1.86 ± 0.20 2.92 750−2.2 × 104 PC(6.9) 3.22 1.86 ± 0.20
140629A 2.275 1.92 ± 0.12 0.909 4000−1.5 × 104 PC(5.1) 0.932 1.91 ± 0.12
140703A 3.14 1.80 ± 0.09 9.36 3800−7 × 104 PC(11.9) 12.8 1.82 ± 0.09

Notes. A solid horizontal line separates BAT6 GRBs from the extended sample. GRBs with an updated redshift estimate with respect to C12 are marked in italics. The NH(z) values for the GRBs with no redshift are evaluated at z = 0. The results with an upper limit of column density are labelled by ↓.

(a)

This GRB has an inferred photometric redshift of z = 2.7. Since this is not a spectroscopic measure in data analysis we considered z to be zero, but for completeness we reported also the intrinsic column densities computed at z = 2.7.

(b)

In this case the column density fitted was an upper limit (a potential ↓), but being relative to a GRB with no redshift, this should be also a lower limit. The symbol ≷ indicates this ambiguous situation.

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