Fig. 2
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EWs of Si II 6347Å line phased with linear changing period model (Adelman et al. 2001) shown in the top panel. Lower panel gives the variations in the longitudinal magnetic field of 56 Ari according to Borra & Landstreet (1980) as black circles and Shultz et al. (2020) as blue squares, similarly phased to the EW curve. The sinusoidal fit of the magnetic data set is shown by the blue curve.
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