Fig. 7

Normalized Stokes parameters q and u and degree of linear polarization (top), angle of linear polarization (center), and S/N in q, u, and the degree of linear polarization (bottom) of DH Tau B as a function of aperture radius for the 2019-10-24 data set of DH Tau.The uncertainties of the measured values are shown with error bars. The final selected aperture radius of 8 pixels is indicated with the dashed vertical lines.
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