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The Demographics of Rocky Free-floating Planets and their Detectability by WFIRST

  • Authors: Thomas Barclay, Elisa V. Quintana, Sean N. Raymond, and Matthew T. Penny

2017 The Astrophysical Journal 841 86.

  • Provider: AAS Journals

Caption: Figure 5.

Mass of embryos ejected from the 152 simulations of Raymond et al. (2011) (upper panel) and the time of ejection (lower panel). The body masses at the start of the simulations were between 0.05 and 0.12 M, and most ejected bodies did not grow before they were ejected. The two colors are linked with the giant planets’ evolution in the system in which that particular body was ejected. Blue represent systems in which the giant planets’ orbits remained stable and are comparable to the simulations with giant planets presented in this paper. Unstable systems are shown in orange and provide a different formation outcome. The mass distribution in these simulations is broadly consistent with the simulations presented here.

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