An attempt to constrain Planet Nine’s orbit and position via resonant confinement of distant TNOs
An attempt to constrain Planet Nine’s orbit and position via resonant confinement of distant TNOs
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尝试通过遥远的海天体共振限制来限制第九行星的轨道和位置
DOI:
10.1093/mnras/staa790
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发表时间:
2020
影响因子:
4.8
通讯作者:
Morbidelli, Alessandro
中科院分区:
文献类型:
--
作者:
Downey, Brynna G;Morbidelli, Alessandro
We considered four TNOs on elongated orbits with small semimajor axis uncertainties: Sedna, 2004 VN112, 2012 VP113, and 2000 CR105. We found two sets of simultaneous near commensurabilities for these objects with a putative Planet Nine that are compatible with the current uncertainties in the objects’ orbital periods. We conducted a large number of numerical simulations of quasi-coplanar simulations (i.e. inclinations of Planet Nine and TNOs set to zero but not the giant planets) to find which values of Planet Nine’s mean anomaly and longitude of perihelion could put these objects in stable mean motion resonance (MMR) librations. We found no cases of simultaneous stable librations for multiple TNOs for more than 800 My, with most librations lasting much shorter than this time-scale. The objects 2004 VN112and 2000 CR105are the most unstable. Being in an MMR is not a strict requirement for long-term survival in 3D simulations, so our result cannot be used to refute Planet Nine’s existence. Nevertheless, it casts doubt and shows that theoretical attempts to constrain the position of the planet on the sky are not possible.
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DOI:
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发表时间:
2017
期刊:
影响因子:
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作者:
C. Shankman;J. Kavelaars;M. Bannister;B. Gladman;S. Lawler;Ying;M. Jakubik;N. Kaib;M. Alexandersen;S. Gwyn;J. Petit;K. Volk
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DOI:
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发表时间:
2017
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DOI:
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发表时间:
1993
期刊:
The Astronomical Journal
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E. Standish
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E. Standish
DOI:
10.3847/1538-3881/aa7aa2
发表时间:
2017
期刊:
The Astronomical Journal
影响因子:
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作者:
Becker, Juliette C.;Adams, Fred C.;Khain, Tali;Hamilton, Stephanie J.;Gerdes, David
通讯作者:
Gerdes, David
DOI:
10.3847/1538-3881/aa937c
发表时间:
2017-10
期刊:
The Astronomical Journal
影响因子:
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作者:
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通讯作者:
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