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Table 2

Spectropolarimetric observations, activity indicators, and Bl measurements for OU And in 2008 and 2013 (see Sect. 3).

Date HJD Phases S / N S-index Hα Ca IRT  B l σ
2 450 000 + index index (G) (G)
14 Sep. 2008 4724.46 0.74 11 566 0.492 0.3338 0.873 –28.0 5.5
16 Sep. 2008 4726.52 0.83 11 437 0.469 0.3183 0.856 –24.8 3.2
19 Sep. 2008 4729.57 0.95 36 567 0.498 0.3391 0.869 –10.3 1.7
21 Sep. 2008 4731.41 0.03 23 403 0.515 0.3499 0.878 +5.6 2.7
25 Sep. 2008 4735.43 0.20 37 585 0.517 0.3421 0.879 +30.0 1.7
29 Sep. 2008 4739.52 0.36 42 200 0.515 0.3434 0.870 +40.9 1.5
02 Sep. 2013 6538.57 0.71 39 601 0.525 0.3366 0.887 +36.1 1.6
08 Sep. 2013 6544.52 0.95 34 881 0.483 0.3269 0.864 +33.0 1.8
10 Sep. 2013 6546.50 0.03 39 508 0.504 0.3335 0.870 +20.6 1.6
15 Sep. 2013 6551.54 0.24 40 125 0.496 0.3422 0.866 –24.7 1.6
17 Sep. 2013 6553.52 0.32 31 367 0.521 0.3515 0.887 –345.0 2.1
19 Sep. 2013 6555.51 0.41 38 155 0.494 0.3395 0.874 –19.5 1.7
21 Sep. 2013 6557.50 0.49 40 193 0.496 0.3397 0.876 –2.9 1.6
23 Sep. 2013 6559.49 0.57 42 731 0.484 0.3322 0.873 +17.1 1.5
06 Oct. 2013 6572.47 0.11 29 819 0.473 0.3357 0.868 –5.0 2.1
08 Oct. 2013 6574.46 0.19 40 784 0.484 0.3652 0.854 –24.6 1.5
11 Oct. 2013 6577.57 0.32 37 216 0.482 0.3421 0.862 –27.7 1.7
13 Oct. 2013 6579.57 0.40 21 087 0.485 0.3595 0.866 –18.6 3.0
31 Oct. 2013 6597.38 0.14 29 209 0.534 0.3466 0.887 –145.0 2.2

Notes.For ephemeris computation HJD0 = 2 454101.5 and rotational period of 242 were used. Presented S/N is for LSD Stokes V profiles. Scaling parameters (line depth, wavelength, and landé factor) are equal to 0.530, 562 nm, and 1.29, respectively.

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