21 citations · 79 across the 14 of their papers we have counts for
14 papers
Dynamical structures of misaligned circumbinary planets under hierarchical three-body systems
Hanlun Lei, Yanxiang Gong
All circumbinary planets (CBPs) currently detected are located in almost co-planar configurations with respect to the binary orbit, due to the fact that CBPs with higher misalignme…
Dynamical structures associated with high-order and secondary resonances in the spin-orbit problem
Hanlun Lei
In our Solar system, spin-orbit resonances are common under Sun--planet, planet--satellite and binary asteroid configurations. In this work, high-order and secondary spin-orbit res…
Secular dynamics of stellar spin driven by planets inside Kozai-Lidov resonance
Hanlun Lei, Yan-Xiang Gong
In many exoplanetary systems with `hot Jupiters', it is observed that the spin axes of host stars are highly misaligned to planetary orbital axes. In this study, a possible channel…
A study of the high-inclination population in the Kuiper belt -- IV. High-order mean motion resonances in the classical region
Jian Li, S. M. Lawler, Hanlun Lei
In our previous study of Neptune's 4:7 mean motion resonance (MMR), we discovered that its resonant angle can only librate within a specific eccentricity () versus inclination (…
The von Zeipel-Lidov-Kozai effect inside mean motion resonances with applications to trans-Neptunian objects
Hanlun Lei, Jian Li, Xiumin Huang +1
Secular dynamics inside MMRs plays an essential role in governing the dynamical structure of the trans-Neptunian region and sculpting the orbital distribution of trans-Neptunian ob…
Quadrupole and octupole order resonances in non-restricted hierarchical planetary systems
Hanlun Lei, Xiumin Huang
Nonrestricted hierarchical three-body configurations are common in various scales of astrophysical systems. Dynamical structures of the quadrupole-order resonance (the von Zeipel-L…
Dynamical essence of the eccentric von Zeipel-Lidov-Kozai effect in restricted hierarchical planetary systems
Hanlun Lei, Yan-Xiang Gong
Aim. The eccentric von Zeipel-Lidov-Kozai (ZLK) effect is widely used to explain dynamical phenomena in varieties of astrophysical systems. The purpose of this work is to make clea…
A systematic study about orbit flips of test particles caused by eccentric von Zeipel-Lidov-Kozai effects
Hanlun Lei
The problem of orbit flips caused by eccentric von Zeipel-Lidov-Kozai effects is systematically investigated by means of three approaches, including Poincaré sections, dynamical sy…
Structures of secular resonances for inner test particles in hierarchical planetary systems
Hanlun Lei
In this study, dynamics of secular resonances for inner test particles are investigated under the octupole-level approximation by taking non-perturbative approaches. In practice, w…
Apsidal asymmetric-alignment of Jupiter Trojans
Jian Li, Hanlun Lei, Zhihong J. Xia
The most distant Kuiper belt objects exhibit the clustering in their orbits, and this anomalous architecture could be caused by Planet 9 with large eccentricity and high inclinatio…
Secular resonance of inner test particles in hierarchical planetary systems
Hanlun Lei
The present work studies the secular resonance associated with the critical argument ( is the longitude of pericentre) for inner test particles moving in low-ec…
Dynamical structures of retrograde resonances: analytical and numerical studies
Hanlun Lei, Jian Li
In this work, retrograde mean motion resonances (MMRs) are investigated by means of analytical and numerical approaches. Initially, we define a new resonant angle to describe the r…
Multi-harmonic Hamiltonian models with applications to first-order resonances
Hanlun Lei, Jian Li
In this work, two multi-harmonic Hamiltonian models for mean motion resonances are formulated and their applications to first-order resonances are discussed. For the : reso…
GAUSS -- A Sample Return Mission to Ceres
Xian Shi, Julie Castillo-Rogez, Henry Hsieh +26
The goal of Project GAUSS is to return samples from the dwarf planet Ceres. Ceres is the most accessible ocean world candidate and the largest reservoir of water in the inner solar…