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Table A.2

BBLP values in the BVRI filters, parameters of the Serkowski curves, and wavelength gradients for the stars observed in this LIPS survey.

B V R I
P θ E P θ E P θ E P θ E K λ max P max dθ/dλ C
Star Date (%) (°) (%) (°) (%) (°) (%) (°) (nm) (%) (°/100 nm)

AzV 18 2015-10-14 0.41 105.7 0.40 105.4 0.36 105.1 0.30 105.9 0.37 ± 0.52
AzV 456 2015-10-14 1.24 162.3 1.32 161.1 1.33 161.6 1.30 161.1 0.27 ± 0.16 626 ± 32 1.33 ± 0.02 0.30 ± 0.23
HD 36982 2015-10-17 0.57 62.2 0.68 59.9 0.65 57.5 0.58 52.8 2.56 ± 0.26
HD 37021 2015-10-17 0.26 95.2 0.34 101.7 0.38 105.7 0.45 110.2 3.82 ± 0.34
HD 37061 2015-10-14 1.25 64.6 1.54 61.6 1.64 59.5 1.64 57.5 1.41 ± 0.11 697 ± 12 1.68 ± 0.00 1.85 ± 0.07
HD 38029 2015-10-14 1.82 105.2 1.87 104.9 1.77 105.1 1.62 105.3 0.85 ± 0.17 514 ± 23 1.88 ± 0.01 0.23 ± 0.07
HD 37367 2015-10-16 0.88 14.2 1.02 15.2 1.03 15.5 0.97 15.6 1.18 ± 0.08 624 ± 7 1.04 ± 0.02 0.27 ± 0.10
HD 37903 2015-10-17 1.45 119.9 1.74 121.0 1.80 121.6 1.72 122.4 1.51 ± 0.23 646 ± 8 1.82 ± 0.01 0.69 ± 0.06
HD 38087 2015-10-17 2.37 118.4 2.57 118.1 2.51 118.6 2.30 119.3 1.18 ± 0.04 572 ± 5 2.59 ± 0.01 0.30 ± 0.07
HD 39680 2015-10-14 0.44 163.6 0.60 163.0 0.68 162.6 0.70 162.9 0.27 ± 0.21 1
2015-12-01 0.39 166.1 0.56 163.9 0.63 163.0 0.65 163.4 1.09 ± 0.17 1
HD 251204 2015-10-14 4.64 153.8 4.97 154.3 4.88 154.6 4.51 155.0 1.00 ± 0.02 575 ± 2 5.00 ± 0.01 0.33 ± 0.03
HD 252325 2015-10-14 4.69 162.5 5.13 162.6 5.08 162.8 4.73 163.1 1.07 ± 0.04 595 ± 3 5.18 ± 0.01 0.19 ± 0.02
HD 43384 2015-10-14 2.88 170.5 3.05 171.1 2.98 171.4 2.75 171.7 0.92 ± 0.03 566 ± 2 3.06 ± 0.01 0.27 ± 0.02
HD 45314 2015-10-17 0.91 162.8 1.15 160.1 1.21 159.2 1.17 158.8 1.58 ± 0.06 665 ± 9 1.23 ± 0.00 0.79 ± 0.13
Walker 67 2015-10-17 3.01 18.7 4.16 17.2 4.81 16.4 5.16 16.0 1.40 ± 0.05 826 ± 3 5.20 ± 0.04 0.58 ± 0.06
HD 49787 2015-10-17 0.23 10.7 0.26 4.2 0.26 4.5 0.28 8.6 0.07 ± 0.82
HD 50820 2015-10-17 0.15 112.7 0.15 117.9 0.13 126.3 0.13 138.2 7.05 ± 0.62
HD 54662 2015-10-17 0.79 145.0 0.86 145.1 0.84 146.3 0.79 148.6 0.95 ± 0.24 571 ± 8 0.86 ± 0.01 1.10 ± 0.13
HD 61827 2015-05-22 1.59 4.0 1.78 3.5 1.80 3.5 1.71 3.6 1.09 ± 0.04 624 ± 7 1.82 ± 0.00 0.11 ± 0.06
CD28 5205 2015-05-12 1.01 100.7 1.18 100.6 1.17 100.5 1.09 100.7 1.55 ± 0.10 610 ± 7 1.21 ± 0.01 0.06 ± 0.10
HD 66194 2015-05-22 0.42 144.0 0.43 144.0 0.42 149.4 0.39 156.5 4.05 ± 0.34
LS 908 2015-05-12 1.74 110.0 1.90 110.0 1.85 109.7 1.67 109.7 1.19 ± 0.16 567 ± 11 1.91 ± 0.01 0.02 ± 0.12
HD 73882 2015-05-22 1.58 164.6 1.95 164.1 2.07 164.0 2.02 164.1 1.42 ± 0.12 684 ± 8 2.10 ± 0.02 0.09 ± 0.08
HD 75309 2015-05-23 0.61 52.1 0.62 54.3 0.58 53.0 0.51 50.1 0.43 ± 0.33
HD 75860 2015-05-22 1.57 142.0 1.66 142.3 1.57 142.3 1.38 142.3 1.41 ± 0.06 541 ± 5 1.68 ± 0.01 0.06 ± 0.04
HD 76868 2015-05-29 0.20 27.6 0.19 23.0 0.21 18.2 0.22 14.2 3.51 ± 0.37
HD 79186 2015-05-23 2.52 46.8 2.60 46.9 2.46 46.5 2.17 46.2 1.07 ± 0.02 520 ± 10 2.62 ± 0.00 0.22 ± 0.05
HD 80558 2015-05-23 2.88 164.0 3.30 163.3 3.27 163.3 3.00 163.7 1.33 ± 0.03 597 ± 10 3.34 ± 0.06 0.14 ± 0.04 2
HD 89137 2015-05-23 0.37 32.6 0.44 31.0 0.47 28.7 0.46 27.6 1.52 ± 0.22
HD 91824 2015-05-24 1.27 96.9 1.33 96.2 1.23 96.0 1.04 95.7 1.49 ± 0.06 517 ± 5 1.35 ± 0.01 0.23 ± 0.06
HD 91983 2016-01-30 1.05 130.0 1.09 132.2 1.05 134.8 0.97 137.2 1.00 ± 0.21 542 ± 6 1.10 ± 0.01 2.16 ± 0.10
HD 93160 2015-05-24 2.22 114.5 2.29 114.7 2.18 115.0 1.92 115.9 1.12 ± 0.13 530 ± 4 2.31 ± 0.01 0.42 ± 0.03
HD 93205 2015-05-24 1.96 100.5 2.09 99.5 2.01 99.2 1.79 98.4 1.27 ± 0.05 552 ± 3 2.10 ± 0.01 0.47 ± 0.05
HD 93222 2015-05-24 0.79 127.1 0.68 134.7 0.57 146.5 0.53 162.2 9.34 ± 0.38 3
HD 303308 2015-05-24 2.69 99.0 2.88 99.0 2.76 98.9 2.42 98.9 1.35 ± 0.04 550 ± 3 2.90 ± 0.01 0.01 ± 0.05
2016-01-30 2.73 100.1 2.93 99.9 2.81 100.0 2.49 100.0 1.35 ± 0.04 551 ± 3 2.95 ± 0.01 0.04 ± 0.04
HD 93632 2015-05-12 0.75 54.9 1.15 52.0 1.35 49.3 1.47 47.6 1.57 ± 0.10 828 ± 17 1.49 ± 0.01 1.96 ± 0.12
2015-12-29 0.93 60.5 1.17 54.6 1.33 51.5 1.40 48.2 1.41 ± 0.19 781 ± 24 1.40 ± 0.05 2.76 ± 0.12
HD 93843 2015-05-12 0.64 101.5 0.61 100.0 0.53 98.2 0.44 94.7 2.15 ± 0.15
2015-12-29 0.66 101.5 0.64 100.8 0.55 100.1 0.43 99.7 0.44 ± 0.29
HD 94493 2015-05-12 0.61 107.9 0.62 106.0 0.55 106.7 0.44 108.4 0.04 ± 0.29
2016-01-26 0.66 107.8 0.63 107.2 0.55 109.2 0.42 111.9 1.13 ± 0.30
HD 96715 2015-05-20 1.85 3.4 2.03 2.5 2.00 2.2 1.88 2.4 0.90 ± 0.07 591 ± 5 2.03 ± 0.01 0.19 ± 0.08
HD 97484 2015-05-17 0.97 55.0 1.02 57.1 0.95 57.9 0.86 57.8 1.23 ± 0.19 537 ± 17 1.03 ± 0.01 0.51 ± 0.15
2016-02-14 0.93 58.7 0.98 59.8 0.92 61.3 0.82 62.8 1.15 ± 0.11 529 ± 9 0.98 ± 0.03 1.31 ± 0.17
HD 99953 2015-05-25 1.88 107.6 1.93 107.2 1.80 107.8 1.55 108.4 1.24 ± 0.07 516 ± 8 1.95 ± 0.00 0.47 ± 0.05
HD 101065 2015-05-25 0.02 6.7 0.10 13.5 0.12 8.7 0.16 4.2 2.87 ± 0.40
HD 103779 2015-05-23 0.59 77.2 0.61 75.1 0.54 72.0 0.45 69.9 2.89 ± 0.17
HD 104705 2015-05-23 0.69 89.4 0.76 88.3 0.79 88.6 0.71 86.8 0.34 ± 0.39 647 ± 99 0.77 ± 0.07 1.66 ± 0.45
HD 105416 2015-05-12 0.18 91.2 0.21 79.6 0.16 76.9 0.12 66.2 4.78 ± 0.83
2016-02-07 0.31 86.1 0.25 89.1 0.23 88.5 0.18 88.2 0.85 ± 0.41
HD 108639 2016-01-23 1.72 90.7 1.92 90.7 1.83 90.9 1.64 91.3 1.29 ± 0.23 550 ± 5 1.92 ± 0.04 0.21 ± 0.08
HD 109399 2015-05-23 2.08 114.5 2.19 114.5 2.09 114.7 1.81 115.5 1.30 ± 0.06 538 ± 8 2.20 ± 0.01 0.29 ± 0.06
HD 111934 2015-04-07 2.61 74.9 2.82 74.2 2.71 73.8 2.40 73.7 1.35 ± 0.09 556 ± 10 2.83 ± 0.02 0.22 ± 0.05
HD 112272 2015-04-07 0.73 56.7 0.84 56.3 0.81 55.0 0.71 53.8 1.93 ± 0.13 584 ± 23 0.85 ± 0.02 1.12 ± 0.13
2015-12-29 0.68 48.2 0.72 51.8 0.71 50.3 0.64 46.6 1.56 ± 0.19 591 ± 24 0.73 ± 0.02 2.01 ± 0.19
CPD63 2495 2015-04-07 2.49 76.2 2.75 72.3 2.63 70.6 2.36 69.4 1.31 ± 0.08 569 ± 9 2.75 ± 0.04 1.56 ± 0.12
HD 113904 2015-04-07 1.33 83.1 1.38 82.4 1.35 81.8 1.27 81.2 0.79 ± 0.39 540 ± 8 1.40 ± 0.05 0.01 ± 0.15 4
2015-12-29 1.19 81.9 1.38 83.8 1.30 84.0 1.12 84.3 1.99 ± 0.34 562 ± 42 1.39 ± 0.02 0.72 ± 0.13 4
HD 114886 2015-05-12 1.76 74.1 1.89 73.9 1.80 73.3 1.58 72.4 1.31 ± 0.07 537 ± 5 1.90 ± 0.02 0.54 ± 0.06
2016-01-30 1.78 74.9 1.93 74.8 1.83 74.5 1.62 74.3 1.34 ± 0.04 547 ± 4 1.93 ± 0.02 0.14 ± 0.04
HD 115071 2016-01-26 1.87 78.4 2.03 79.3 1.94 79.1 1.69 79.3 1.35 ± 0.05 546 ± 4 2.04 ± 0.02 0.01 ± 0.04
HD 115842 2015-05-12 0.31 137.4 0.28 142.6 0.27 153.0 0.34 158.0 6.73 ± 0.86
2016-01-30 0.29 117.9 0.29 125.9 0.29 135.5 0.29 141.6 7.18 ± 0.41
HD 116852 2015-05-12 1.14 115.4 1.23 115.4 1.15 116.3 0.99 116.9 1.20 ± 0.09 517 ± 4 1.23 ± 0.01 0.23 ± 0.13
2016-02-22 0.84 111.9 1.03 114.8 1.02 116.6 0.92 117.7 1.56 ± 0.11 603 ± 21 1.04 ± 0.06 1.57 ± 0.17
HD 119159 2015-05-12 1.16 71.0 1.24 68.8 1.17 67.8 0.99 67.2 1.56 ± 0.07 533 ± 8 1.25 ± 0.01 0.65 ± 0.09
2016-01-28 1.16 69.8 1.24 69.0 1.17 68.2 1.00 67.1 1.19 ± 0.20 511 ± 9 1.25 ± 0.02 0.30 ± 0.13
HD 122879 2015-05-12 1.66 70.0 1.79 69.6 1.71 69.0 1.48 68.7 1.68 ± 0.04 560 ± 12 1.81 ± 0.01 0.57 ± 0.07
HD 124314 2015-05-12 2.12 70.0 2.22 70.0 2.14 70.2 1.92 70.1 1.19 ± 0.18 544 ± 8 2.24 ± 0.01 0.10 ± 0.07
2016-02-22 2.15 69.7 2.25 70.5 2.11 70.6 1.85 71.0 1.30 ± 0.06 530 ± 10 2.27 ± 0.01 0.40 ± 0.06
HD 129557 2015-05-11 1.21 80.4 1.49 80.6 1.47 79.7 1.38 79.1 1.44 ± 0.26 607 ± 9 1.51 ± 0.07 0.77 ± 0.13
2016-02-22 1.20 80.1 1.34 80.3 1.27 80.3 1.11 80.8 1.51 ± 0.20 557 ± 18 1.34 ± 0.01 0.08 ± 0.07
HD 133518 2015-05-11 0.69 58.4 0.78 58.2 0.73 58.3 0.60 58.9 1.61 ± 1.27 525 ± 99 0.79 ± 0.05 0.81 ± 0.26 5
2016-02-12 0.80 57.0 0.80 58.9 0.74 58.6 0.66 57.3 1.25 ± 0.14 524 ± 26 0.80 ± 0.04 0.28 ± 0.18 6
HD 134591 2015-05-12 0.28 105.0 0.25 102.6 0.26 97.2 1.94 ± 1.15 7
2016-02-22 0.30 111.7 0.29 112.6 0.25 116.5 0.22 122.4 2.54 ± 1.02
HD 135591 2015-05-12 1.28 62.7 1.42 63.0 1.36 62.5 1.20 62.6 1.53 ± 0.08 564 ± 6 1.42 ± 0.01 0.21 ± 0.06
2016-01-29 1.32 64.4 1.45 64.3 1.39 64.6 1.24 65.3 1.37 ± 0.27 557 ± 7 1.45 ± 0.02 0.16 ± 0.08
HD 147683 2016-02-12 1.58 28.1 1.71 27.6 1.66 27.1 1.50 27.4 1.13 ± 0.08 569 ± 8 1.71 ± 0.03 0.16 ± 0.12
HD 147888 2016-01-30 2.73 54.4 3.31 53.9 3.45 53.5 3.33 53.0 1.43 ± 0.02 662 ± 4 3.49 ± 0.01 0.38 ± 0.02
HD 147889 2015-05-13 2.60 177.5 3.48 176.4 3.97 175.5 4.21 174.6 1.32 ± 0.02 809 ± 4 4.22 ± 0.00 0.72 ± 0.03
2015-05-24 2.59 178.7 3.47 176.8 3.96 175.9 4.16 175.0 1.37 ± 0.04 798 ± 7 4.18 ± 0.01 0.78 ± 0.04
2016-01-28 2.70 178.9 3.49 177.2 3.95 176.1 4.16 175.1 1.18 ± 0.09 813 ± 13 4.18 ± 0.01 0.83 ± 0.04
HD 148379 2015-05-11 1.82 29.5 1.85 28.4 1.82 27.8 1.69 27.2 0.95 ± 0.06 582 ± 4 1.86 ± 0.09 0.37 ± 0.07 8
HD 148688 2015-05-11 1.32 17.7 1.38 20.1 1.34 20.3 1.22 20.5 0.76 ± 0.06 527 ± 5 1.39 ± 0.01 0.86 ± 0.17
HD 148937 2015-05-12 1.54 48.5 1.70 47.9 1.66 47.2 1.50 46.8 1.31 ± 0.11 576 ± 6 1.71 ± 0.01 0.47 ± 0.06
2016-02-12 1.56 48.0 1.74 48.1 1.72 47.6 1.58 47.4 1.36 ± 0.15 597 ± 5 1.76 ± 0.01 0.30 ± 0.05
HD 149404 2015-05-12 2.70 177.7 2.98 178.9 2.93 179.7 2.67 0.5 1.02 ± 0.08 569 ± 4 3.00 ± 0.04 0.86 ± 0.05 9
2016-01-30 2.44 3.9 2.71 3.4 2.71 3.1 2.50 2.5 1.24 ± 0.03 600 ± 9 2.76 ± 0.01 0.32 ± 0.03 9
HD 150136 2015-05-20 1.04 56.6 1.15 58.6 1.09 59.1 0.98 58.5 1.19 ± 0.12 537 ± 8 1.15 ± 0.04 0.44 ± 0.16
HD 151804 2015-05-24 1.04 43.2 1.10 43.2 1.09 42.1 0.98 41.3 1.17 ± 0.12 572 ± 8 1.11 ± 0.01 0.65 ± 0.08
HD 151805 2016-02-22 0.63 29.4 0.64 34.3 0.60 36.5 0.52 37.8 2.39 ± 0.39
HD 152235 2015-05-24 0.77 117.3 0.75 114.7 0.66 113.5 0.53 112.9 1.77 ± 0.13 490 ± 12 0.78 ± 0.01 0.80 ± 0.21
HD 152248 2015-05-24 0.50 118.6 0.50 116.2 0.45 115.4 0.35 115.2 1.38 ± 0.27
HD 152249 2015-05-24 0.20 66.8 0.28 64.2 0.30 59.7 0.29 57.7 3.09 ± 0.38
HD 152408 2015-05-24 0.55 35.3 0.69 35.7 0.71 35.2 0.63 33.7 1.72 ± 0.12 618 ± 10 0.71 ± 0.03 0.81 ± 0.15
HD 152424 2015-05-24 0.31 109.9 0.24 107.3 0.14 108.9 0.05 141.8 3.61 ± 1.95 10
2016-02-12 0.38 89.6 0.31 87.6 0.27 82.9 0.21 76.3 4.73 ± 0.29 10
HD 153919 2015-04-12 2.40 8.1 2.60 9.9 2.55 10.7 2.32 11.4 1.09 ± 0.12 569 ± 4 2.62 ± 0.01 0.78 ± 0.06 11
2016-02-22 2.65 8.5 2.75 10.2 2.67 10.7 2.41 11.5 0.99 ± 0.04 546 ± 2 2.77 ± 0.02 0.60 ± 0.05 11
HD 154043 2015-04-12 3.12 34.8 3.51 34.1 3.45 33.4 3.17 32.1 1.30 ± 0.03 596 ± 4 3.54 ± 0.01 0.79 ± 0.03
2016-02-02 3.21 36.8 3.51 36.2 3.43 35.4 3.13 34.7 1.26 ± 0.03 579 ± 8 3.54 ± 0.02 0.65 ± 0.04
HD 154368 2015-04-12 0.39 166.1 0.30 158.8 0.27 148.8 0.25 138.0 7.96 ± 0.32 12
2016-02-22 0.37 166.0 0.28 152.0 0.27 142.9 0.28 133.5 8.29 ± 0.41 12
HD 155806 2015-05-24 0.77 153.3 0.90 154.6 0.90 156.0 0.82 156.8 1.05 ± 0.29 590 ± 18 0.90 ± 0.02 1.35 ± 0.14
HD 155851 2015-05-24 2.48 147.5 2.44 146.5 2.31 145.9 2.12 145.8 0.78 ± 0.05 496 ± 4 2.47 ± 0.01 0.78 ± 0.08 13
HD 156201 2015-05-25 0.87 133.8 0.98 129.0 0.98 127.9 0.91 127.8 1.12 ± 0.11 607 ± 9 1.00 ± 0.03 0.54 ± 0.22
HD 157038 2015-05-25 2.50 170.5 2.54 168.4 2.36 166.7 2.08 165.4 1.14 ± 0.05 513 ± 6 2.57 ± 0.02 1.47 ± 0.10
HD 157978 2016-03-14 0.62 83.1 0.67 81.5 0.61 81.0 0.53 80.0 0.61 ± 0.09
HD 161056 2016-02-17 3.59 67.4 3.98 67.6 3.87 67.4 3.47 67.1 1.43 ± 0.05 572 ± 2 4.02 ± 0.04 0.15 ± 0.03
HD 163181 2015-05-25 1.43 173.0 1.43 175.1 1.38 176.8 1.29 178.6 0.50 ± 0.13 485 ± 18 1.45 ± 0.01 1.69 ± 0.09
HD 164073 2015-05-25 0.91 1.4 1.08 1.3 1.08 1.0 1.02 0.4 1.05 ± 0.10 630 ± 9 1.09 ± 0.02 0.26 ± 0.10
HD 164740 2015-04-07 5.48 93.8 6.78 94.6 7.09 94.9 6.74 95.2 1.72 ± 0.02 657 ± 2 7.20 ± 0.02 0.33 ± 0.02
HD 315023 2015-04-07 1.07 151.9 1.29 151.0 1.38 151.1 1.35 151.7 1.33 ± 0.52 682 ± 25 1.39 ± 0.02 0.21 ± 0.06
HD 165319 2015-10-16 1.14 58.4 1.16 60.8 1.07 61.7 0.87 63.2 1.58 ± 0.12 511 ± 10 1.18 ± 0.01 1.25 ± 0.13
HD 167838 2016-03-13 0.29 91.6 0.32 97.2 0.30 101.7 0.27 108.5 4.76 ± 0.21
BD13 4920 2015-04-07 2.92 71.2 3.28 71.4 3.22 71.5 2.91 71.5 1.41 ± 0.03 587 ± 2 3.31 ± 0.00 0.07 ± 0.03
HD 168076 2015-05-30 3.07 67.1 3.38 66.4 3.30 65.8 2.99 65.3 1.31 ± 0.02 576 ± 1 3.41 ± 0.01 0.52 ± 0.03
HD 169454 2016-03-13 1.91 16.7 2.12 14.9 2.07 13.6 1.92 12.5 1.12 ± 0.08 585 ± 8 2.13 ± 0.01 1.03 ± 0.05
HD 170740 2016-03-15 1.84 78.2 1.97 77.4 1.90 76.8 1.71 76.2 1.35 ± 0.06 561 ± 4 1.99 ± 0.01 0.58 ± 0.04
HD 170938 2015-11-08 3.62 117.6 3.90 118.4 3.68 119.2 3.17 120.0 1.60 ± 0.04 552 ± 3 3.93 ± 0.02 0.63 ± 0.04
HD 171957 2015-11-08 1.49 76.6 1.55 77.1 1.45 76.8 1.23 75.9 1.20 ± 0.06 501 ± 21 1.58 ± 0.01 0.36 ± 0.08
HD 172694 2015-06-02 1.01 141.8 1.02 146.3 0.98 147.9 0.89 148.0 0.67 ± 0.28 497 ± 32 1.03 ± 0.04 2.58 ± 0.23 14
HD 203532 2015-06-02 1.29 127.9 1.38 127.8 1.35 128.1 1.23 128.8 1.23 ± 0.05 574 ± 7 1.39 ± 0.03 0.24 ± 0.09
HD 210121 2015-10-02 1.33 154.9 1.34 155.9 1.26 157.0 1.12 157.7 0.55 ± 0.12 434 ± 21 1.38 ± 0.02 0.86 ± 0.07

Notes. Best-fit parameters are omitted for stars with P ≤ 0.7 %. The last column refers to some comments listed at the end of the table. 1. HD 39680 on 2015-10-04 and 2015-12-01: depolarisation and change of position angle in the Paschen line spectral region.2. HD 80558 on 2015-05-23: polarisation spectra obtained with and without order-separating filter show a remarkable difference (ΔP ~ 0.1 %). 3. HD 93222 on 2015-05-24 shows an increass of polarisation at λ ≳ 820 nm, and the position angle has a strong wavelength gradient.4. HD 113904 is a triple system and on 2015-04-07 and on 2015-12-29 shows differences in the intensity and polarisation spectra. 5. HD 133518 on 2015-05-11: inconsistencies in the polarisation measured with and without order separating filter at longer wavelengths. 6. HD133518 on 2016-02-12: observations without filter show an artifact in one of the beams of the frame obtained at PA = 67.5°, in the wavelength range 796.7 to 820.6 nm. We have arbitrarily fixed this problem by replacing the fluxes of both beams in this wavelength range with those obtained at the same retarder PA measured in the series obtained with the order-separating filter in. 7. HD 134591 on 2015-05-12 was observed only with order-separating filter. 8. HD 148379 on 2015-05-11: polarisation spectra measured with and without order-separating filter show large inconsistencies (ΔP ≳ 0.1%). 9. HD 149404 shows variability in polarisation (both in value and in position angle). 10. HD 152424 variability in the intensity spectrum. Position angles measured on 2015-05-24 has larger errors. 11. HD 153919 shows some variability in the fraction of linear polarisation (but not in the position angle). 12. HD 154368 shows a strong variation of the position angle with wavelength in both observing dates. 13. HD 155851 on 2015-05-24: at λ ≥ 820 nm the polarisation decreases, and the gradient of its position angle changes its sign. 14. HD 172694 on 2015-06-02 shows a sudden increase of polarisation at λ ≥ 820 nm. In the same wavelength region, the gradient of the polarisation position angle changes its sign, however the intensity spectrum does not show anything remarkable in that interval.

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