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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 7.

Results from our Monte Carlo simulations for HR 8799e. One-dimensional PDFs from all possible solutions are shown for each of the seven free parameters. The solid lines represent the solutions unweighted by the likelihood of catching the planet in its current phase, while the dashed line shows solutions weighted by this likelihood. High eccentricities are favored in the unweighted case, along with periastron passage close to the current epoch. The inclination also shifts from about 50° in the unweighted case to preferring face on in the weighted case. Because of the higher astrometric uncertainties, our constraints on the orbital parameters of this planets are still quite limited.

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