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Table C.2

Individual epochs with CAFOS

Serkowski curve

Name Filter Epoch Passband P (%) PQ (%) PU (%) λmax (Å) Pmax (%) K
BD+23d3762 free 2015-04-30 03:09:40 4964.8 ± 60.9 2.23 ± 0.01 0.92 ± 0.06
B 2.20 ± 0.01 1.83 ± 0.01 1.21 ± 0.02 16.7 ± 0.2
V 2.19 ± 0.01 1.76 ± 0.01 1.31 ± 0.02 18.3 ± 0.2
R 2.07 ± 0.01 1.62 ± 0.01 1.28 ± 0.01 19.2 ± 0.1
BD+45d3341 free 2015-04-30 02:06:40 5046.5 ± 72.6 3.09 ± 0.01 0.83 ± 0.08
B 3.02 ± 0.02 −0.19 ± 0.01 3.02 ± 0.02 46.8 ± 0.2
V 3.06 ± 0.02 −0.31 ± 0.01 3.04 ± 0.02 47.9 ± 0.1
R 2.90 ± 0.01 −0.31 ± 0.01 2.88 ± 0.01 48.0 ± 0.1
BD+45d3341 free 2015-04-30 02:34:01 5192.5 ± 34.0 3.01 ± 0.01 1.09 ± 0.06
B 2.93 ± 0.01 −0.20 ± 0.01 2.92 ± 0.01 47.0 ± 0.1
V 2.97 ± 0.01 −0.30 ± 0.01 2.96 ± 0.01 47.9 ± 0.1
R 2.87 ± 0.01 −0.30 ± 0.01 2.85 ± 0.01 48.0 ± 0.1
HD1337a free 2015-04-30 03:47:04
B 0.56 ± 0.03 0.04 ± 0.02 0.56 ± 0.03 42.8 ± 1.7
V 0.54 ± 0.02 −0.04 ± 0.02 0.54 ± 0.02 47.1 ± 1.3
R 0.55 ± 0.01 −0.03 ± 0.01 0.55 ± 0.01 46.6 ± 0.7
HD1337a free 2015-04-30 03:55:09
B 0.54 ± 0.01 −0.02 ± 0.01 0.54 ± 0.01 46.3 ± 0.5
V 0.56 ± 0.01 −0.04 ± 0.01 0.56 ± 0.01 47.2 ± 0.5
R 0.55 ± 0.01 −0.04 ± 0.01 0.55 ± 0.01 47.1 ± 0.3
HD1337a free 2015-04-30 04:09:15
B 0.58 ± 0.01 −0.04 ± 0.01 0.57 ± 0.01 47.0 ± 0.6
V 0.58 ± 0.01 −0.05 ± 0.01 0.57 ± 0.01 47.6 ± 0.6
R 0.56 ± 0.01 −0.04 ± 0.01 0.56 ± 0.01 46.8 ± 0.4
HD137569a,b free 2015-04-29T23:40:10
B 0.19 ± 0.03 −0.19 ± 0.03 −0.04 ± 0.03
V 0.34 ± 0.05 −0.29 ± 0.05 −0.18 ± 0.05
R 0.21 ± 0.03 −0.21 ± 0.03 −0.04 ± 0.03
HD137569a,b free 2015-04-30T00:08:05
B 0.20 ± 0.02 −0.14 ± 0.03 −0.15 ± 0.02
V 0.18 ± 0.04 −0.11 ± 0.04 −0.14 ± 0.04
R 0.16 ± 0.03 −0.15 ± 0.03 −0.06 ± 0.02
HD154445 free 2015-04-30 00:39:26 5550.8 ± 13.8 3.67 ± 0.01 1.50 ± 0.04
B 3.37 ± 0.01 −3.36 ± 0.01 0.19 ± 0.01 88.4 ± 0.1
V 3.63 ± 0.01 −3.63 ± 0.01 0.07 ± 0.01 89.4 ± 0.1
R 3.53 ± 0.01 −3.53 ± 0.01 0.02 ± 0.01 89.9 ± 0.1
HD154445 free 2015-04-30 04:33:46 5640.8 ± 20.5 3.61 ± 0.01 1.85 ± 0.07
B 3.23 ± 0.01 −3.22 ± 0.01 0.13 ± 0.01 88.9 ± 0.1
V 3.57 ± 0.01 −3.57 ± 0.01 0.05 ± 0.01 89.6 ± 0.1
R 3.48 ± 0.01 −3.48 ± 0.01 −0.01 ± 0.01 90.1 ± 0.1
HD194092 free 2015-04-30 01:21:46 5727.8 ± 235.1 0.64 ± 0.01 1.46 ± 0.47
B 0.51 ± 0.01 −0.39 ± 0.01 0.32 ± 0.01 70.6 ± 0.5
V 0.61 ± 0.01 −0.52 ± 0.01 0.31 ± 0.02 74.5 ± 0.6
R 0.61 ± 0.01 −0.50 ± 0.01 0.34 ± 0.01 72.9 ± 0.4
HD28446 free 2015-04-29 20:44:12 4835.7 ± 117.9 2.12 ± 0.01 1.08 ± 0.16
B 2.13 ± 0.02 1.16 ± 0.02 −1.79 ± 0.02 151.4 ± 0.2
V 2.07 ± 0.01 1.13 ± 0.01 −1.74 ± 0.01 151.6 ± 0.2
R 1.98 ± 0.01 1.12 ± 0.01 −1.63 ± 0.01 152.3 ± 0.1
HD28446 free 2015-04-29 20:52:17 4887.0 ± 100.4 2.07 ± 0.01 0.60 ± 0.08
B 2.03 ± 0.01 1.12 ± 0.01 −1.69 ± 0.01 151.8 ± 0.1
V 2.03 ± 0.01 1.10 ± 0.01 −1.70 ± 0.01 151.5 ± 0.1
R 1.96 ± 0.01 1.09 ± 0.01 −1.63 ± 0.01 151.8 ± 0.1
HD43384 free 2015-04-29 20:14:24 5342.5 ± 42.8 2.96 ± 0.01 0.96 ± 0.06
B 2.88 ± 0.01 2.62 ± 0.01 −1.19 ± 0.01 167.8 ± 0.1
V 2.94 ± 0.01 2.73 ± 0.01 −1.08 ± 0.01 169.2 ± 0.1
R 2.85 ± 0.01 2.70 ± 0.01 −0.92 ± 0.01 170.6 ± 0.1
HD43384 free 2015-04-29 21:14:04 5215.5 ± 75.8 3.00 ± 0.01 0.80 ± 0.08
B 2.93 ± 0.02 2.72 ± 0.02 −1.08 ± 0.03 169.2 ± 0.2
V 2.97 ± 0.02 2.79 ± 0.01 −1.02 ± 0.02 170.0 ± 0.2
R 2.87 ± 0.01 2.72 ± 0.01 −0.91 ± 0.01 170.8 ± 0.1

Notes. The errors in this table are statistical only, while the root-mean-square of the Stokes Q and U is ~ 0.04%. (a) The constant polarization curve of this star could not be fitted well with a Serkowski curve. (b) The polarization angle could not be determined due to low polarization degree.

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