Table 3: Results of the TBL magnetic field measurements. The signal to noise ratio per pixel ( S/N) was measured around 550 nm in the Stokes V spectrum (order 108). The HJD was calculated halfway the four subexposures used for each magnetic measurement. Measurements shown are the effective magnetic field as measured from the Stokes V profiles before and after correcting for the pulsations ( $B_{{\rm eff}}$ and $B_{{\rm corr}}$ respectively) and similarly for the values for N. The last column gives the best-fit velocity shift between the two beams.
Obs. Date HJD (mid obs.) S/N Range $B_{{\rm eff}}$ $B_{{\rm corr}}$ $\sigma_B$ $N_{{\rm eff}}$ $N_{{\rm corr}}$ $\sigma_{\rm N}$ Velocity shift
    -2 452 000   (km s-1) (G) (G) (G) (G) (G) (G) (km s-1)
1 2003 Feb. 8 679.3090 560 [-63, 68] -5 -7 42 20 25 41 -0.42$\;\pm\;$0.08
2 2003 Oct. 25 937.5507 430 [-66, 78] 5 2 61 63 61 62 -0.43$\;\pm\;$0.16
3 2004 Feb. 4 1040.4632 120 [-86, 92] 437 419 314 57 78 316 -2.71$\;\pm\;$3.75
4 2004 Feb. 6 1042.4229 590 [-65, 69] 59 59 39 26 26 36 0.15$\;\pm\;$0.36
5 2004 Feb. 8 1044.4563 430 [-137, 105] 163 153 127 77 71 125 -0.43$\;\pm\;$0.36
6 2004 Feb. 10 1046.3001 560 [-59, 65] 11 6 39 -75 -74 38 -0.71$\;\pm\;$0.08
7 2004 Feb. 12 1048.4243 510 [-65, 71] 36 36 46 -2 -1 44 -0.43$\;\pm\;$0.36
8 2004 Feb. 14 1050.2834 670 [-61, 65] -9 -11 31 -6 -6 29 -0.57$\;\pm\;$0.12

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