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Fig. A.1

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Surface density evolution in a setup with αt = 10−3 and h = 0.05, over 3000 orbits of a mpl/M* = 1 × 10−5 planet on a (fixed) circular orbit at 1 AU. We show the surface density contrast (t(r, θ) − 〈t(r)〉θ)/〈t(r)〉θ on the (θ, r) plane, where 〈t(r)〉θ is the azimuthally averaged surface density at the distance r.

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