An interstellar origin for high-inclination Centaurs

@article{Namouni2020AnIO,
  title={An interstellar origin for high-inclination Centaurs},
  author={F Namouni and M H M Morais},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2020}
}
  • F. Namouni, M. Morais
  • Published 22 April 2020
  • Physics, Geology
  • Monthly Notices of the Royal Astronomical Society
We investigate the possible origins of real high-inclination Centaurs and trans-neptunian objects using a high-resolution statistical search for stable orbits that simulates their evolution back in time to the epoch when planet formation ended 4.5 billion years in the past. The simulation is a precise orbit determination method that does not involve ad hoc initial conditions or assumptions such as those found in planetesimal disc relaxation models upon which their conclusions depend. It can… 

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References

SHOWING 1-10 OF 51 REFERENCES
An interstellar origin for Jupiter’s retrograde co-orbital asteroid
Asteroid (514107) 2015 BZ509 was discovered recently in Jupiter's co-orbital region with a retrograde motion around the Sun. The known chaotic dynamics of the outer Solar System have so far precluded
No evidence for interstellar planetesimals trapped in the Solar system
In two recent papers published in MNRAS, Namouni and Morais claimed evidence for the interstellar origin of some small Solar system bodies, including: (i) objects in retrograde co-orbital motion
Origin and Evolution of Short-period Comets
Comets are icy objects that orbitally evolve from the trans-Neptunian region (the Kuiper belt and beyond) into the inner Solar System, where they are heated by solar radiation and become active due
Discovery of a New Retrograde Trans-Neptunian Object: Hint of a Common Orbital Plane for Low Semimajor Axis, High-inclination TNOs and Centaurs
Although the majority of Centaurs are thought to have originated in the scattered disk, with the high-inclination members coming from the Oort cloud, the origin of the high-inclination component of
Centaurs from the Oort cloud and the origin of Jupiter-family comets
A numerical study of an ensemble of orbits based on observed objects in the near-Neptune high-eccentricity (NNHE) region, with perihelion distances q in the range 28 60 au being roughly an order of
THE DYNAMICS OF KNOWN CENTAURS
We have numerically investigated the long-term dynamical behavior of known Centaurs. This class of objects is thought to constitute the transitional population between the Kuiper belt and the
On the dynamical origins of retrograde Jupiter Trojans and their connection to high-inclination TNOs
Over the course of the last decade, observations of highly-inclined (orbital inclination i > 60°) Trans-Neptunian Objects (TNOs) have posed an important challenge to current models of solar system
Simulations of the population of Centaurs – I. The bulk statistics
Large-scale simulations of the Centaur population are carried out. The evolution of 23 328 particles based on the orbits of 32 well-known Centaurs is followed for up to 3 Myr in the forward and
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4
5
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