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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 1.

Upper panel: number of bodies ejected per star in various mass bins for simulations with (green) and without (red) giant planets. Lower panel: ejected mass per star in each mass bin. With giant planets, about half the ejected mass is in planetesimals and half in planets, although many more small bodies are ejected. Without giant planets, far fewer planetesimals and no planets leave the system. Note that no bodies larger than 0.3 M were ejected from any of these simulations.

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