Fig. 13

Upper panel: center of flux velocities for the [O i] 6300, 6364 Å (blue circles), [O i] 5577 Å (blue crosses), Mg i] 4571 Å (green circles), [Ca ii] 7291, 7323 Å (yellow circles), Ca ii 8498, 8542, 8662 Å (yellow crosses), Na i 5890, 5896 Å (red circles), and [Fe ii] 7155 Å (black circles) lines for SN 2011dh. Lower panel: center of flux velocities for the [O i] 6300, 6364 Å (blue circles), [O i] 5577 Å (blue crosses), and Mg i] 4571 Å (green circles) lines for SNe 1993J (dashed lines) and 2008ax (solid lines).
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