Fig. 7
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Schematic illustration of different planetesimal orbits. Planetesimals are stable in the outer disk (blue) and on circular orbits within 1 au (green). Eccentric planetesimals (red) will be lost for any accreting planet outside of 1 au, but provide pebbles for accretion onto a planet inside 1 au. If the snowline is around 1 au, water might also be efficiently transferred inward.
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