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ASTROMETRIC MONITORING OF THE HR 8799 PLANETS: ORBIT CONSTRAINTS FROM SELF-CONSISTENT MEASUREMENTS

  • Authors: Q. M. Konopacky, C. Marois, B. A. Macintosh, R. Galicher, T. S. Barman, S. A. Metchev, and B. Zuckerman

2016 The Astronomical Journal 152 28.

  • Provider: AAS Journals

Caption: Figure 9.

One-dimesonsional PDFs for all four planets for only those orbits that do not come within the Hill radius of each other. The solutions for HR 8799e are drawn from weighted simulations. Eccentricity upper limits are <0.3 for all planets, and orbital plane distributions remain fully consistent, with strong overlap in both inclination and Ω. Also noted is the locations of 1:2:4:8 period ratios assuming the peak and 1σ values of the distribution for HR 8799e is the start of the chain. In this case, all four planets are consistent with these ratios to within 1σ.

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