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Large-scale chaos in restricted hierarchical triples driven by short-range forces
Xiaoyan Leng, Hanlun Lei
Context: The eccentric von Zeipel-Lidov-Kozai effect, which is widely applied to diverse astrophysical settings, can drive the inner binary to extremely high eccentricities, where…
Resonant Networks of Spin-Orbit Coupling in Ellipsoid-Ellipsoid Binary Asteroid Systems
Yuanzhe Zhang, Hanlun Lei
The dynamical evolution of binary asteroid systems is deeply influenced by spin-orbit resonances. However, their domains of influence and mutual interactions remain elusive, in par…
Tidal coplanarization of circumbinary planetary systems through stellar Cassini states
Hanlun Lei
Circumbinary planets (CBPs) currently identified are in nearly coplanar configurations relative to their host binaries, yet the dynamical origin of this preference remains unclear.…
Extensions of Brown Hamiltonian-III. Applications to irregular satellites of giant planets
Hanlun Lei, Xiaoyan Leng, Evgeni Grishin
Irregular satellites, orbiting at large distances from their host planets, are subject to strong solar perturbations that render long-term orbital predictions particularly challeng…
High-order expansions of multi-revolution elliptic Halo orbits in the elliptic restricted three-body problem
Xiaoyan Leng, Hanlun Lei
Multi-revolution elliptic Halo (ME-Halo) orbits are a special class of symmetric and periodic solutions within the framework of the elliptic restricted three-body problem (ERTBP).…
Eccentric von Zeipel-Lidov-Kozai effects under mildly hierarchical triple systems: Influence of Brown corrections upon orbit flipping
Hao Gao, Hanlun Lei
Mildly hierarchical three-body systems are widespread in the Universe, exemplified by planets in stellar binaries and stars in black-hole binaries. In such systems, Brown Hamiltoni…
Extensions of Brown Hamiltonian-II. Analytical study on the modified von Zeipel-Lidov-Kozai effects
Hanlun Lei, Evgeni Grishin
In triple systems of weak hierarchies, nonlinear perturbations arising from the periodic oscillations associated with the inner and outer binaries play a crucial role in shaping th…
Extensions of Brown Hamiltonian-I. A high-accuracy model for von Zeipel-Lidov-Kozai oscillations
Hanlun Lei, Evgeni Grishin
Triple systems with low hierarchical structure are common throughout the Universe, including examples such as high-altitude lunar satellites influenced by the Earth, planetary sate…
Spin-orbit coupling of the primary body in a binary asteroid system
Hanlun Lei
Spin-orbit coupling is widespread in binary asteroid systems and it has been widely studied for the case of ellipsoidal secondary. Due to angular momentum exchange, dynamical coupl…
Spin-orbit coupling of the ellipsoidal secondary in a binary asteroid system
Hanlun Lei
In our Solar system, spin-orbit coupling is a common phenomenon in binary asteroid systems, where the mutual orbits are no longer invariant due to exchange of angular momentum betw…
A new expansion of planetary disturbing function and applications to interior, co-orbital and exterior resonances with planets
Hanlun Lei
In this study, a new expansion of planetary disturbing function is developed for describing the resonant dynamics of minor bodies with arbitrary inclinations and semimajor axis rat…