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Fig. 5


Panels 1 and 2 show the nodal precession rates of a planetesimal with semi-major axis at ai = 13.3 AU (panel 1) and ai = 6.2 AU (panel 2). Shown are the contributions of the disc gravity (red line), binary companion (green line), gas drag (blue line) and total rate (black line). In panels 5 and 6 we also show the rates of inclination change with respect to the binary and disc midplane respectively for the inner particle. In panels 3 and 4 the trajectory of the tip of the particle’s angular momentum vector is shown projected onto the (Ωi − Ωd, αi − αd) plane for the outer (panel 3) and inner particle (panel 4).

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