Image Details
Caption: Figure 5.
Stokes q and u parameters for the GRB sample (excluding GRB 120308A) as a function of apparent magnitude. In each plot the red point indicates the GRB and the black points are the other objects in the same frame. The q and u values have been corrected for instrumental polarization using the measured instrumental zero-points. The data have not been corrected for instrumental depolarization.
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