9 papers
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…