Disk properties before (left column), during (middle column), and after (right column) the MRI burst (MRI1). In particular, the columns from left to right correspond to the time instances marked in the top panel of Fig. 2 with the vertical dotted lines (a), (b), and (c), respectively. Top row: gas surface density maps in the inner 200 × 200 au² box of the disk. Middle row: gas surface density in the inner 10 × 10 au² part of the disk. Bottom row: value of α-parameter in the inner 10 × 10 au² part of the disk. The white circles in the coordinate center represent the sink cell.