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Fig. 8.

image

Dynamical simulation of the possible influence of HD 80606 b to the inner Neptune-mass planet. The black and red lines show the pericentre, semi-major axis, and apocentre of HD 80606 b and the engulfed planet, respectively. The binary companion forces Kozai cycles on planet b, which perturbs the inner planet when its pericentre is small and forces the inner planet into the star during the second such cycle.

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