Fig. 4.
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Stokes I (top) and Stokes V (bottom) images of LkCa 4 obtained from LOFAR at two epochs: July 7, 2019 (left) and August 10, 2019 (right). The restoring beams used for the images were 6″ × 6″ and 20″ × 20″ for the Stokes I and Stokes V images, respectively. The optical position of LkCa 4 obtained from Gaia DR2 (Gaia Collaboration 2018) is indicated by the cross.
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