Is there an exoplanet in the Solar System
@article{Mustill2016IsTA, title={Is there an exoplanet in the Solar System}, author={Alexander J. Mustill and Sean N. Raymond and Melvyn B. Davies}, journal={Monthly Notices of the Royal Astronomical Society}, year={2016}, volume={460}, pages={109-113} }
We investigate the prospects for the capture of the proposed Planet 9 from other stars in the Sun's birth cluster. Any capture scenario must satisfy three conditions: the encounter must be more distant than ∼150 au to avoid perturbing the Kuiper belt; the other star must have a wide-orbit planet (a ≳ 100 au); the planet must be captured on to an appropriate orbit to sculpt the orbital distribution of wide-orbit Solar system bodies. Here we use N-body simulations to show that these criteria may…
38 Citations
Was Planet 9 captured in the Sun’s natal star-forming region?
- Physics, Geology
- 2017
The presence of an unseen ‘Planet 9’ on the outskirts of the Solar system has been invoked
to explain the unexpected clustering of the orbits of several Edgeworth–Kuiper Belt Objects.
We use N-body…
The fates of Solar system analogues with one additional distant planet
- Physics, Geology
- 2016
The potential existence of a distant planet (“Planet Nine”) in the Solar system has prompted a re-think about the evolution of planetary systems. As the Sun transitions from a main sequence star into…
Fly-by encounters between two planetary systems I: Solar system analogues
- Physics, GeologyMonthly Notices of the Royal Astronomical Society
- 2019
Stars formed in clusters can encounter other stars at close distances. In typical open clusters in the Solar neighbourhood containing hundreds or thousands of member stars, 10–20 per cent of…
Circularizing Planet Nine through dynamical friction with an extended, cold planetesimal belt
- Geology, Physics
- 2018
Unexpected clustering in the orbital elements of minor bodies beyond the Kuiper belt has led to speculations that our Solar system actually hosts nine planets, the eight established plus a…
The impact of star cluster environments on planet formation
- Physics, Geology
- 2019
It is thought that most stars, including our Sun, form within clusters alongside many other stars. Planet formation and star formation occur simultaneously, and therefore the birth environment of…
The Generation of the Distant Kuiper Belt by Planet Nine from an Initially Broad Perihelion Distribution
- Geology, Physics
- 2018
The observation that the orbits of long-period Kuiper Belt objects are anomalously clustered in physical space has recently prompted the Planet Nine hypothesis - the proposed existence of a distant…
The birth environment of planetary systems
- Physics, GeologyRoyal Society Open Science
- 2020
In this contribution, a review of the different processes that can affect planet formation and stability in star-forming regions are reviewed in light of the typical range of stellar densities observed for star-formed regions.
Monte Carlo Simulations of Stellar Planet Capture and Orbital Perturbations in Rogue Star – Solar System Interactions
- Physics, Geology
- 2018
Monte Carlo simulations have been performed on gravitational trajectories of objects within the Solar System when a rogue star passes through it. One result is that there is a 1 . 0 0 . 4 percent…
CONSEQUENCES of A DISTANT MASSIVE PLANET on the LARGE SEMIMAJOR AXIS TRANS-NEPTUNIAN OBJECTS
- Geology, Physics
- 2016
We explore the distant giant planet hypothesis by integrating the large semi-major axis, large pericenter Trans-Neptunian Objects (TNOs) in the presence of the giant planets and an external perturber…
References
SHOWING 1-10 OF 47 REFERENCES
EVIDENCE FOR A DISTANT GIANT PLANET IN THE SOLAR SYSTEM
- Geology, Physics
- 2016
Recent analyses have shown that distant orbits within the scattered disk population of the Kuiper Belt exhibit an unexpected clustering in their respective arguments of perihelion. While several…
Stellar encounters as the origin of distant Solar System objects in highly eccentric orbits
- Geology, PhysicsNature
- 2004
It is shown that a passing star probably scattered Sedna from the Kuiper belt into its observed orbit, and the likelihood that a planet at 60–80 au can be scattered into Sedna's orbit is about 50 per cent; this estimate depends critically on the geometry of the fly-by.
Planet-planet scattering in planetesimal disks II: Predictions for outer extrasolar planetary systems
- Physics, Geology
- 2010
We develop an idealized dynamical model to predict the typical properties of outer extrasolar planetary systems, at radii comparable to the Jupiter-to-Neptune region of the solar system. The model is…
Observational constraints on the orbit and location of Planet Nine in the outer solar system
- Geology, Physics
- 2016
We use an extensive suite of numerical simulations to constrain the mass and orbit of Planet Nine, the recently proposed perturber in a distant eccentric orbit in the outer solar system. We compare…
A Sedna-like body with a perihelion of 80 astronomical units
- Physics, GeologyNature
- 2014
The detection of 2012 VP113 confirms that Sedna is not an isolated object; instead, both bodies may be members of the inner Oort cloud, whose objects could outnumber all other dynamically stable populations in the Solar System.
Debris disks as signposts of terrestrial planet formation
- Physics, Geology
- 2011
There exists strong circumstantial evidence from their eccentric orbits that most of the known extra-solar planetary systems are the survivors of violent dynamical instabilities. Here we explore the…
Can planetary instability explain the Kepler dichotomy
- Physics, Geology
- 2012
The planet candidates discovered by the Kepler mission provide a rich sample to constrain the architectures and relative inclinations of planetary systems within approximately 0.5 AU of their host…
The effects of fly‐bys on planetary systems
- Physics, Geology
- 2010
Most of the observed extrasolar planets are found on tight and often eccentric orbits. The high eccentricities are not easily explained by planet-formation models, which predict that planets should…
Close encounters in young stellar clusters: implications for planetary systems in the solar neighbourhood
- Physics, Geology
- 2007
Dynamical encounters in young stellar clusters may produce at least some of the extrasolar planetary systems observed in the solar neighbourhood, beginning with a population of planetary systems exactly resembling the Solar System around single stars.
Images of a fourth planet orbiting HR 8799
- Physics, GeologyNature
- 2010
The HR 8799 planetary system, with its four young giant planets and known cold/warm debris belts, is a unique laboratory in which to study the formation and evolution of giant planets at wide (>10 au) separations.