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Table 1.

Results of the polarization observations of the optical counterpart to 4U 0115+63 in the R band.

JD (240 000+) P(%) σP(%) PA(deg) σPA(deg) q σq u σu
56549.5671 2.8 0.7 −72.6 7.4 −0.0228 0.0075 −0.0158 0.0070
56576.4997 3.4 0.5 −67.3 3.9 −0.0238 0.0047 −0.0242 0.0046
56592.4652 3.9 0.5 −67.3 3.8 −0.0272 0.0050 −0.0275 0.0052
56623.3618 3.0 0.3 −68.8 3.1 −0.0222 0.0034 −0.0202 0.0033
56854.5923 3.9 0.4 −69.0 2.6 −0.0291 0.0035 −0.0262 0.0036
56872.5402 4.4 0.5 −66.6 3.3 −0.0301 0.0051 −0.0320 0.0050
56885.5121 4.2 0.5 −65.3 3.5 −0.0277 0.0051 −0.0321 0.0051
56903.5471 3.9 0.5 −63.7 3.8 −0.0238 0.0053 −0.0309 0.0052
57264.5125 3.9 0.4 −70.0 2.9 −0.0301 0.0043 −0.0252 0.0037
57346.3532 4.2 0.2 −69.0 1.8 −0.0316 0.0026 −0.0284 0.0026
57555.5471 4.3 0.2 −70.0 1.4 −0.0328 0.0022 −0.0276 0.0019
57641.5372 3.8 0.2 −68.5 1.2 −0.0279 0.0017 −0.0261 0.0016
57665.4385 4.0 0.1 −68.1 1.0 −0.0292 0.0014 −0.0279 0.0014
57695.4444 4.0 0.1 −67.0 0.9 −0.0280 0.0013 −0.0288 0.0013
57929.5633 4.0 0.1 −70.2 0.9 −0.0312 0.0014 −0.0258 0.0012
57957.4767 4.0 0.1 −64.9 1.0 −0.0255 0.0014 −0.0306 0.0013
57966.4957 4.2 0.2 −63.5 1.1 −0.0252 0.0017 −0.0335 0.0016
57970.5607 4.1 0.1 −66.0 1.0 −0.0277 0.0015 −0.0307 0.0015
57985.6152 4.2 0.2 −61.5 1.4 −0.0228 0.0019 −0.0352 0.0021
57986.5391 4.2 0.2 −61.2 1.4 −0.0223 0.0020 −0.0352 0.0019
57994.5950 3.8 0.2 −62.2 1.3 −0.0215 0.0018 −0.0314 0.0018
58015.4837 3.9 0.3 −64.3 1.9 −0.0246 0.0027 −0.0309 0.0025
58020.5472 3.5 0.3 −64.7 2.4 −0.0221 0.0029 −0.0270 0.0030
58043.5234 3.1 0.3 −70.8 3.1 −0.0246 0.0034 −0.0195 0.0034

Notes. The uncertainties were determined following the prescription given in King et al. (2014).

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