6 papers
The Illusory Precision of TTV Masses: Hidden Solutions Behind Kepler-9's Tight Mass Ratio
Sheng Jin, Dong-Hong Wu, Xiao-Ling Xu +1
Transit timing variations (TTV) are considered a tool for constraining the masses of transiting planets in the absence of radial-velocity data. Although theoretical studies have lo…
Nii-body: Bayesian Inference of Multiplanet Dynamics via N-body Simulations
Hong-Fei Jia, Sheng Jin, Dong-Hong Wu +1
Many exoplanetary systems are multiplanet configurations whose long-term dynamics are governed by N-body gravitational interactions. Consequently, their detection signatures cannot…
Eccentricity Evolution of Warm Jupiters: The Role of Distant Perturbers and Nearby Companions
Ying He, Dong-Hong Wu, Sheng Jin
Warm Jupiters-giant exoplanets with orbital periods between 10 and 200 days-exhibit a broad range of eccentricities and are often accompanied by nearby low-mass planets. Understand…
The Narrow Formation Pathway of Hot Saturns: Constraints on Initial Planetary Properties
Minghao Xie, Sheng Jin, Dong-Hong Wu
The observed exoplanet population exhibits a scarcity of short-period Saturn-mass planets, a phenomenon referred to as the ``hot Saturn desert". This observational scarcity can be…
The heating efficiency of hot Jupiters from a data-driven perspective
Sheng Jin, Dong-Hong Wu, Yi-Xuan Cao +1
The inflated radii of hot Jupiters have been explored by various theoretical mechanisms. By connecting planetary thermal evolution models with the observed properties of hot Jupite…
Enhanced Stability in Planetary Systems with Similar Masses
Dong-Hong Wu, Sheng Jin, Jason H. Steffen
This study employs numerical simulations to explore the relationship between the dynamical instability of planetary systems and the uniformity of planetary masses within the system…