Table 1.
Log of observations of Pollux.
| Date | Number | S/N | HJD | Bℓ | σ | Bℓ, N | S-index | RV |
|---|---|---|---|---|---|---|---|---|
| Stokes V & I | Stokes V | (245 0000+) | (G) | (G) | (G) | Ca II | (km s−1) | |
| 29 Sep.–02 Oct. 07 | 4 | 45794 | 4375.65 | −0.72 | 0.26 | 0.43 | 0.123 | 3.646 |
| 12 Dec.–18 Dec. 07 | 6 | 67831 | 4450.72 | −0.54 | 0.14 | −0.19 | 0.118 | 3.467* |
| 31 Dec. 07 | 5 | 54334 | 4466.99 | −0.57 | 0.20 | 0.05 | 0.120 | 3.536 |
| 05 Apr. 08 | 4 | 76954 | 4562.43 | −0.15 | 0.15 | −0.31 | 0.119 | 3.529 |
| 15 Apr. 08 | 8 | 36901 | 4572.42 | −0.11 | 0.23 | 0.09 | 0.120 | 3.506 |
| 16 Sep. 08 | 8 | 49678 | 4726.72 | −0.45 | 0.13 | 0.11 | 0.118 | 3.548 |
| 20−21 Sep. 08 | 8 | 60062 | 4731.20 | −0.16 | 0.16 | 0.32 | 0.119 | 3.572 |
| 30 Sep. 08 | 8 | 76737 | 4740.72 | −0.31 | 0.11 | 0.01 | 0.117 | 3.581 |
| 21 Dec. 08 | 8 | 57649 | 4822.62 | −0.32 | 0.15 | −0.18 | 0.118 | 3.615 |
| 25 Feb. 09 | 8 | 74324 | 4888.39 | −0.63 | 0.11 | 0.08 | 0.118 | 3.629 |
| 12 Mar. 09 | 8 | 61004 | 4903.43 | −0.71 | 0.14 | −0.03 | 0.116 | 3.643 |
| 18 Mar. 09 | 15 | 62958 | 4909.42 | −0.57 | 0.10 | −0.23 | 0.119 | 3.435* |
| 23 Sep. 09 | 8 | 61466 | 5098.62 | −0.71 | 0.14 | 0.06 | 0.118 | 3.536 |
| 25−26 Oct. 09 | 12 | 55612 | 5131.21 | −0.49 | 0.12 | −0.23 | 0.117 | 3.538 |
| 24 Nov. 09 | 8 | 58795 | 5160.75 | −0.66 | 0.14 | 0.10 | 0.119 | 3.512 |
| 15 Dec. 09 | 8 | 67564 | 5181.76 | −0.31 | 0.12 | −0.11 | 0.118 | 3.476 |
| 12 Mar. 10 | 8 | 54953 | 5268.42 | −0.23 | 0.15 | 0.09 | 0.118 | 3.626 |
| 10 Apr. 10 | 8 | 66035 | 5297.33 | −0.24 | 0.13 | −0.03 | 0.118 | 3.613 |
| 18 Oct. 10 | 8 | 65555 | 5488.73 | −0.46 | 0.13 | 0.18 | 0.117 | 3.600 |
| 18 Nov. 10 | 13 | 77848 | 5519.70 | −0.51 | 0.08 | −0.02 | 0.116 | 3.620 |
| 30 Nov. 10 | 20 | 27310 | 5531.73 | −0.60 | 0.16 | 0.13 | 0.117 | 3.532* |
| 18 Dec. 10 | 8 | 52935 | 5549.64 | −0.48 | 0.16 | 0.16 | 0.117 | 3.645 |
| 03 Jan. 11 | 10 | 62144 | 5565.58 | −0.58 | 0.12 | −0.02 | 0.119 | 3.605 |
| 19 Jan. 11 | 8 | 45256 | 5581.47 | −0.67 | 0.19 | −0.11 | 0.117 | 3.434* |
| 18 Mar. 11 | 8 | 52109 | 5639.40 | −0.25 | 0.16 | −0.14 | 0.116 | 3.594 |
| 25 Sep. 11 | 8 | 61396 | 5830.70 | −0.54 | 0.14 | 0.04 | 0.113 | 3.513 |
| 16 Oct. 11 | 8 | 61620 | 5851.71 | −0.43 | 0.14 | −0.20 | 0.118 | 3.576 |
| 23 Nov. 11 | 8 | 47510 | 5889.76 | −0.71 | 0.18 | −0.22 | 0.120 | 3.510 |
| 10 Dec. 11 | 8 | 62981 | 5906.61 | −0.41 | 0.13 | −0.17 | 0.118 | 3.535 |
| 07 Jan. 12 | 8 | 67918 | 5934.61 | −0.35 | 0.12 | −0.07 | 0.119 | 3.530 |
| 08 Feb. 12 | 8 | 52775 | 5966.54 | −0.33 | 0.16 | −0.13 | 0.120 | 3.559 |
Notes. Individual columns report date of observation, number of averaged Stokes V & I series, mean S/N for Stokes V profiles, mean HJD, Bℓ and its error in gauss, Bℓ, N corresponding to the null polarization spectrum N, the S-index for Ca II H&K, and the heliocentric RV measured from the LSD Stokes I profile. For details, see Sect. 2. An asterisk indicates that the measurement is not taken into account in this work.
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