Consequences of a Distant Massive Planet on the Large Semimajor Axis Trans-Neptunian Objects
Open accessAbstract
We explore the distant giant planet hypothesis by integrating the large-semimajor-axis, large-pericenter trans-Neptunian objects (TNOs) in the presence of the giant planets and an external perturber whose orbit is consistent with the proposed distant, eccentric, and inclined giant planet, so-called planet 9. We find that TNOs with semimajor axes greater than 250 au experience some longitude of perihelion shepherding, but that a generic outcome of such evolutions is that the TNOs evolve to larger pericenter orbits and commonly get raised to retrograde inclinations. This pericenter and inclination evolution requires a massive disk of TNOs (tens of ) in order to explain the detection of the known sample today. Some of the highly inclined orbits produced by the examined perturbers will be inside of the orbital parameter space probed by prior surveys, implying a missing signature of the ninth-planet scenario. The distant giant planet scenarios explored in this work do not reproduce the observed signal of simultaneous clustering in argument of pericenter, longitude of the ascending node, and longitude of perihelion in the region of the known TNOs.
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- Authors
- Shankman, C., Kavelaars, J. J., Lawler, S. M., Gladman, B. J., & Bannister, M. T.
- Affiliations
- University of Victoria (CA)
- National Research Council Canada (CA)
- University of British Columbia (CA)
- Queen's University Belfast (GB)
- Venue
- The Astronomical Journal
- Publisher
- American Astronomical Society
- Published
- 2017-01-11
- Volume
- 153
- Issue
- 2
- Pages
- 63
- ISSN
- 0004-6256 (ISSN-L)
- 1538-3881
- OpenAlex
- W2533038660
- Cited by
- 42
- References
- 66
- Citations by year
- 2025: 1 · 2024: 1 · 2023: 4 · 2022: 3 · 2021: 3 · 2020: 6 · 2019: 7 · 2018: 3 · 2017: 13 · 2016: 1
- FWCI
- 4.34
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- The Astronomical Journal (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- NPARC (submittedVersion)
- Research Portal (Queen's University Belfast) (submittedVersion, other-oa)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Engineering › Aerospace Engineering › Space Satellite Systems and Control
- Keywords
- Planet Nine, trans-Neptunian objects, orbital inclination, retrograde orbits, orbital clustering, N-body simulations
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