Fig. 3
Water-vapor fraction at the snow-line that is required to induce a pressure bump as a function of the accretion rate (Ṁ), at 2 au. The solid red line shows δf for Σa = 100 kg m−2, and the solidblue line shows Σa = 1000 kg m−2. The dashed red and blue lines display ṀDZ, the accretion rate for which the 2 au region would be in a dead zone.
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