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Table A.1
Journal of spectropolarimetric observations of θ Aur and ε UMa.
| Star | UT date | HJD | Phase | Stokes | texp (s) | S/N |
|---|---|---|---|---|---|---|
| θ Aur | 2006-12-01 | 2454070.8582 | 0.442 | V | 140 | 367 |
| 2006-12-05 | 2454074.9291 | 0.567 | V QU | 140/140/140 | 1350/1369/1387 | |
| 2006-12-06 | 2454076.1500 | 0.904 | V QU | 52/52/52 | 805/804/804 | |
| 2008-01-07 | 2454473.4221 | 0.688 | V QU | 240/240/240 | 809/833/833 | |
| 2008-01-09 | 2454475.2751 | 0.200 | V QU | 240/240/240 | 881/901/1033 | |
| 2008-01-23 | 2454489.0075 | 0.995 | V QU | 240/240/240 | 1360/1472/1657 | |
| 2008-01-24 | 2454490.0160 | 0.274 | V QU | 160/160/160 | 1332/1359/1264 | |
| 2008-01-26 | 2454491.7996 | 0.767 | V QU | 160/160/160 | 1504/1497/1451 | |
| 2008-01-30 | 2454495.8796 | 0.894 | V QU | 160/160/160 | 905/827/823 | |
| 2016-09-11 | 2457642.6659 | 0.493 | V QU | 960/1920/1920 | 1009/2763/2533 | |
| 2016-09-29 | 2457660.6162 | 0.454 | V QU | 960/1920/1920 | 1563/2345/2396 | |
| 2016-10-26 | 2457688.4827 | 0.155 | V QU | 960/1920/1920 | 1620/1996/2252 | |
| 2016-10-31 | 2457692.6777 | 0.314 | V QU | 960/1920/1920 | 1640/2511/2322 | |
| 2016-11-02 | 2457694.6299 | 0.853 | V QU | 960/1920/1920 | 1799/2231/2069 | |
| 2016-11-03 | 2457695.5669 | 0.112 | V QU | 960/1920/1920 | 1936/2641/2710 | |
| 2016-11-28 | 2457720.6806 | 0.052 | V QU | 960/1920/1920 | 1660/2379/2329 | |
| 2016-12-02 | 2457725.3928 | 0.354 | V QU | 960/1920/1920 | 2047/2806/2773 | |
| 2016-12-03 | 2457726.3710 | 0.625 | V QU | 960/1920/1920 | 1724/1716/1893 | |
| 2016-12-08 | 2457730.6432 | 0.805 | V QU | 960/1920/1920 | 1836/2733/2596 | |
| 2016-12-13 | 2457736.3999 | 0.396 | V QU | 960/1920/1920 | 1402/1872/1986 | |
| 2016-12-16 | 2457738.5158 | 0.981 | V QU | 960/1920/1920 | 965/2149/1979 | |
| 2017-01-31 | 2457785.4569 | 0.953 | V QU | 960/1920/1920 | 1887/1897/2578 | |
| 2017-03-02 | 2457815.4501 | 0.241 | V QU | 960/1920/1920 | 1585/2112/2228 | |
| 2017-03-14 | 2457827.4029 | 0.544 | V QU | 960/1920/1920 | 1046/1457/1515 | |
| 2017-03-19 | 2457832.4698 | 0.945 | V QU | 480/1920/1920 | 1192/2699/2610 | |
| 2017-03-29 | 2457842.4091 | 0.691 | V QU | 960/1920/1920 | 1425/2416/2070 | |
| 2017-04-06 | 2457850.3990 | 0.899 | QU | 1920/2400 | 1623/1944 | |
| 2017-04-11 | 2457855.3712 | 0.273 | V QU | 960/1920/1920 | 1943/2408/2480 | |
| 2017-04-18 | 2457862.3690 | 0.207 | V QU | 480/1920/1920 | 1188/2601/2613 | |
| ε UMa | 2014-05-18 | 2456796.4729 | 0.121 | V | 128 | 1152 |
| 2016-12-10 | 2457732.7640 | 0.117 | V QU | 156/312/312 | 906/1449/1267 | |
| 2016-12-11 | 2457733.7380 | 0.309 | V QU | 156/312/312 | 1050/1508/1465 | |
| 2016-12-13 | 2457735.6402 | 0.683 | V QU | 156/312/312 | 980/1533/1418 | |
| 2016-12-14 | 2457736.6291 | 0.877 | V QU | 156/312/312 | 680/1129/1104 | |
| 2016-12-15 | 2457737.6246 | 0.073 | V QU | 156/312/312 | 726/712/960 | |
| 2017-01-07 | 2457760.5537 | 0.579 | V QU | 156/312/312 | 1186/1710/1703 | |
| 2017-01-08 | 2457761.5783 | 0.780 | V QU | 156/312/312 | 993/1418/1428 | |
| 2017-02-01 | 2457785.6625 | 0.513 | V QU | 156/312/312 | 288/605/496 | |
| 2017-02-14 | 2457799.4896 | 0.230 | V QU | 156/312/312 | 919/1353/1310 | |
| 2017-02-15 | 2457799.6860 | 0.269 | V QU | 156/312/312 | 1039/1588/1505 | |
| 2017-02-16 | 2457800.5101 | 0.431 | V QU | 156/312/312 | 880/1293/1261 | |
| 2017-02-16 | 2457800.7469 | 0.477 | V QU | 156/312/312 | 1124/1601/1680 | |
| 2017-02-17 | 2457801.5465 | 0.634 | V QU | 156/312/312 | 1055/1504/1500 | |
| 2017-02-17 | 2457801.6818 | 0.661 | V QU | 156/312/312 | 1140/1640/1649 | |
| 2017-02-18 | 2457802.5748 | 0.836 | V QU | 156/312/312 | 1104/1322/1502 | |
| 2017-02-18 | 2457802.6756 | 0.856 | V QU | 156/312/312 | 1219/1618/1649 | |
| 2017-02-19 | 2457803.5263 | 0.023 | V QU | 156/312/312 | 1164/1703/1665 | |
| 2017-02-20 | 2457804.5838 | 0.231 | V QU | 156/312/312 | 930/1578/1518 | |
| 2017-02-22 | 2457806.7073 | 0.649 | V QU | 156/312/312 | 830/1216/1188 | |
| 2017-02-22 | 2457807.4838 | 0.801 | V QU | 156/312/312 | 622/1390/1353 | |
| 2017-03-15 | 2457828.4415 | 0.920 | V QU | 156/312/312 | 1218/1672/1730 | |
| 2017-03-16 | 2457828.6590 | 0.962 | V QU | 156/312/312 | 1251/1758/1670 | |
| 2017-03-17 | 2457829.7183 | 0.171 | V QU | 156/312/312 | 1193/1776/1759 | |
| 2017-03-19 | 2457831.5499 | 0.531 | V QU | 156/312/312 | 1197/1734/1701 | |
| 2017-03-20 | 2457832.5345 | 0.724 | V QU | 156/312/312 | 1185/1661/1698 | |
| 2017-04-17 | 2457861.3410 | 0.385 | V QU | 156/312/312 | 1248/1760/1754 | |
Notes. The columns give the target name, the UT and heliocentric Julian dates at mid-observation, the corresponding rotational phase, the Stokes parameters obtained, the total exposure time and the resulting S/N. The latter refers to 1.8 km s−1 velocity bin of the extracted spectrum and was obtained from the median error bar in the 4500–6000 Å wavelength region.
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