Fig. A.2
Left: measurement uncertainties on Stokes I as a functionof the signal on I. The black, yellow, and blue data points correspond to 3 < SNR(I) < 25, 25 < SNR(I) < 100, and SNR(I) > 100, respectively. The dashed and solid red lines show the median (1.24 mJy beam−1) and mean (1.57 mJy beam−1) uncertainties, respectively. Middle: uncertainties on PI as a function of PI for SNR(I) > 25. The black, yellow, and blue data points correspond to 0 < SNR(PI) < 3, 3 < SNR(PI) < 10, and SNR(PI) > 10, respectively. Right: uncertainties on the POS B-field angle, 
, as a functionof PF for SNR(I) > 25. The colors are the same as in the middle plot.
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