Effects of an eccentric inner Jupiter on the dynamical evolution   of icy body reservoirs in a planetary scattering scenario

Zanardi, Macarena; Elía, G. C. de; Sisto, R. P. Di; Naoz, Smadar; Li, G.; Guilera, O. M.; Brunini, A.

doi:10.1051/0004-6361/201730411

Cited by 22 publications

(39 citation statements)

References 67 publications

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“…Greenstreet et al (2012) suggested that the EKM of Jupiter can produce retrograde near-Earth asteroids such as 2009 HC82, and most of the test particles are near the 3/1 resonance with Jupiter at the instant when they flip to the retrograde state. Zanardi et al (2017) and Naoz et al (2017) suggested that orbits of the outer test particles can also flip from prograde to retrograde or vice versa in the presence of an inner eccentric planet. They discussed the production of debris disk particles by an eccentric Jupiter-mass planet.…”

Section: Production Of Retrograde Centaursmentioning

confidence: 99%

“…Namouni & Morais (2018a) suggested based on numerical experiments that 2015 BZ509 has an interstellar origins. In recent years, it is found that particles in prograde orbits can flip to retrograde state and back again due to the eccentric Kozai mechanism (EKM) of giant planets (Lithwick & Naoz 2011;Naoz 2016;Naoz et al 2017;Zanardi et al 2017). Greenstreet et al (2012) adopted this EKM of Jupiter to discuss the production of the only one retrograde near-Earth asteroid (NEA) 2009 HC82.…”

Section: Introductionmentioning

confidence: 99%

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Survey of asteroids in retrograde mean motion resonances with planets

Huang

Gong

2019

A&A

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Aims. Asteroids in mean motion resonances (MMRs) with planets are common in the solar system. In recent years, increasingly more retrograde asteroids are discovered, several of which are identified to be in resonances with planets. We here systematically present the retrograde resonant configurations where all the asteroids are trapped with any of the eight planets and evaluate their resonant condition. We also discuss a possible production mechanism of retrograde centaurs and dynamical lifetimes of all the retrograde asteroids. Methods. We numerically integrated a swarm of clones (ten clones for each object) of all the retrograde asteroids (condition code U < 7) from −10 000 to 100 000 yr, using the MERCURY package in the model of solar system. We considered all of the p/−q resonances with eight planets where the positive integers p and q were both smaller than 16. In total, 143 retrograde resonant configurations were taken into consideration. The integration time was further extended to analyze their dynamical lifetimes and evolutions. Results. We present all the meaningful retrograde resonant configurations where p and q are both smaller than 16 are presented. Thirty-eight asteroids are found to be trapped in 50 retrograde mean motion resonances (RMMRs) with planets. Our results confirm that RMMRs with giant planets are common in retrograde asteroids. Of these, 15 asteroids are currently in retrograde resonances with planets, and 30 asteroids will be captured in 35 retrograde resonant configurations. Some particular resonant configurations such as polar resonances and co-orbital resonances are also identified. For example, Centaur 2005 TJ50 may be the first potential candidate to be currently in polar retrograde co-orbital resonance with Saturn. Moreover, 2016 FH13 is likely the first identified asteroid that will be captured in polar retrograde resonance with Uranus. Our results provide many candidates for the research of retrograde resonant dynamics and resonance capture. Dynamical lifetimes of retrograde asteroids are investigated by long-term integrations, and only ten objects survived longer than 10 Myr. We confirmed that the near-polar trans-Neptunian objects 2011 KT19 and 2008 KV42 have the longest dynamical lifetimes of the discovered retrograde asteroids. In our long-term simulations, the orbits of 12 centaurs can flip from retrograde to prograde state and back again. This flipping mechanism might be a possible explanation of the origins of retrograde centaurs. Generally, our results are also helpful for understanding the dynamical evolutions of small bodies in the solar system.

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Section: Production Of Retrograde Centaursmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Survey of asteroids in retrograde mean motion resonances with planets

Huang

Gong

2019

A&A

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“…Higher order resonances can further excite test particle eccentricity and inclination. This has important implications for the dynamical evolution of debris disk surrounding planets in eccentric orbits (e.g., Zanardi et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Mildly-Hierarchical triple dynamics and applications to the outer solar system

Bhaskar,

Li,

Hadden

et al. 2020

Preprint

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Three-body interactions are ubiquitous in astrophysics. For instance, Kozai-Lidov oscillations in hierarchical triple systems have been studied extensively and applied to a wide range of astrophysical systems. However, mildly-hierarchical triples also play an important role, but they are less explored. In this work we consider the secular dynamics of a test particle in a mildly-hierarchical configuration. We find the limit within which the secular approximation is reliable, present resonances and chaotic regions using surface of sections, and characterize regions of phase space that allow large eccentricity and inclination variations. Finally, we apply the secular results to the outer solar system. We focus on the distribution of extreme trans-neptunian objects (eTNOs) under the perturbation of a possible outer planet (Planet-9), and find that in addition to a low inclination Planet-9, a polar or a counterorbiting one could also produce pericenter clustering of eTNOs, while the polar one leads to a wider spread of eTNO inclinations.

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“…For the particular case where the outer body is a massless test particle, Farago & Laskar (2010) obtained results consistent with those derived by Ziglin (1975). Recently, Naoz et al (2017) and Zanardi et al (2017) (hereafter Paper 1) carried out two complementary works aimed at analyzing the dynamical evolution of outer test particles under the effects of an eccentric inner massive perturber. In fact, Naoz et al (2017) studied the secular evolution of a far away test particle orbiting an inner massive binary up to the octupole level of approximation.…”

Section: Introductionmentioning

confidence: 99%

“…However, Naoz et al (2017) showed that secular interactions up to the octupole level lead to variations of the test particle's eccentricity and introduces higher-level resonances, which may produce chaos. In this context, Zanardi et al (2017) made use of N-body simulations and analyzed the dynamical evolution of outer test particles in presence of an eccentric inner Jupiter-mass planet resulting from a planet-planet scattering event around a 0.5 M ⊙ star. The results derived by these authors suggest that planetary scattering scenarios lead to an efficient production of outer small body reservoirs composed of particles with prograde and retrograde inclinations, and other ones whose orbit flips from prograde to retrograde and back again in their evolution.…”

Section: Introductionmentioning

confidence: 99%

The role of general relativity on icy body reservoirs under the effects of an inner eccentric Jupiter

Zanardi

Elía

Sisto

et al. 2018

A&A

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Context. Recent studies have analyzed the dynamical evolution of outer small body populations under the effects of an eccentric inner massive perturber, which result from a planetary scattering event. These investigations suggest that such outer reservoirs are composed of particles on prograde and retrograde orbits, as well as particles whose orbit flips from prograde to retrograde and back again showing a coupling between the inclination i and the ascending node longitude Ω (Type-F particles) Aims. We analyze the role of the General Relativity (GR) on the dynamics of outer particles under the influence of an inner eccentric Jupiter-mass planet produced by a planetary scattering event. In particular, we are interested to study how the GR affects the dynamical evolution of the outer Type-F particles, which experience an eccentric Lidov-Kozai mechanism. Methods. To do this, we carry out N-body simulations with and without GR effects. Such a detailed comparative analysis will allow us to strengthen our understanding concerning the GR and eccentric Lidov-Kozai combined effects on the dynamical evolution of outer particles. Results. When the GR is included, the extreme values of Ω are obtained for retrograde inclinations, while the minimum and maximum inclinations allowed for Type-F particles increase in comparison with that derived without GR effects. According to this, if the GR is included in the simulations, the range of prograde (retrograde) inclinations of the libration region is reduced (increased) respect to that obtained in absence of GR. We find two new class of particles when the GR effects are included in the simulations. On the one hand, particles whose orbital plane flips from prograde to retrograde and back again without experiencing a coupling between i and Ω. On the other hand, retrograde particles that show a strong coupling between i and Ω. We infer that the GR may significantly modify the dynamical properties of the outer reservoirs that evolve under the effects of an eccentric inner perturber.Key words. planets and satellites: dynamical evolution and stability -minor planets, asteroids: general -methods: numerical Send offprint requests to: M. Zanardi

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Effects of an eccentric inner Jupiter on the dynamical evolution of icy body reservoirs in a planetary scattering scenario

Cited by 22 publications

References 67 publications

Survey of asteroids in retrograde mean motion resonances with planets

Survey of asteroids in retrograde mean motion resonances with planets

Mildly-Hierarchical triple dynamics and applications to the outer solar system

The role of general relativity on icy body reservoirs under the effects of an inner eccentric Jupiter

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