Fig. 7

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S-index compared to 〈B〉 for EV Lac (top) and DS Leo (bottom). 〈B〉 estimates were obtained from δ〈B〉 by adding typical median values from Cristofari et al. (2025), of 4.54 and 0.79 kG for EV Lac and DS Leo, respectively. For DS Leo, points marked with a cyan circle correspond to observations recorded between BJD 2454400 and 2455700 (see Fig. 5).
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