Fig. 4

LSD Stokes I and V profiles for the two HARPSpol observations of HD 209459. The mean polarization profiles are offset vertically and expanded by a factor of 10 relative to Stokes I. The dashed lines show the circular polarization signatures for ⟨ Bz ⟩ = 53 and 99 G, corresponding to the range of the longitudinal field detections claimed by Hubrig et al. (2012) from the same observational data.
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