Open Access

Fig. 8

image

Contours of surface density for the M3D simulation and a migrating Jupiter-mass planet. The panels correspond to different times, reported on top of each panel, corresponding to the dots in Fig. 7. It appears clearly that a secondary gap is carved by vortex-disc interaction (second and third panels) and that the vortex weakens by spreading radially, leaving the outer disc partially depleted (fourth and fifth panels).

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