591 citations · 2.1k across the 54 of their papers we have counts for
54 papers
Surviving in the Hot Neptune Desert: The Discovery of the Ultra-Hot Neptune TOI-3261b
Emma Nabbie, Chelsea X. Huang, Jennifer A. Burt +45
The recent discoveries of Neptune-sized ultra-short period planets (USPs) challenge existing planet formation theories. It is unclear whether these residents of the Hot Neptune Des…
Let's Sweep: The Effect of Evolving on the Resonant Structure of a Three-Planet System
Thea H. Faridani, Smadar Naoz, Gongjie Li +1
Short and ultra-short planets are a peculiar type of exoplanets with periods as short as a few days or less. Although it is challenging to detect them, already several are observed…
Enhanced Blackhole mergers in AGN discs due to Precession induced resonances
Hareesh Gautham Bhaskar, Gongjie Li, Doug Lin
Recent studies have shown that AGN discs can host sources of gravitational waves. Compact binaries can form and merge in AGN discs through their interactions with the gas and other…
Sporadic Spin-Orbit Variations in Compact Multi-planet Systems and their Influence on Exoplanet Climate
Howard Chen, Gongjie Li, Adiv Paradise +1
Climate modeling has shown that tidally influenced terrestrial exoplanets, particularly those orbiting M-dwarfs, have unique atmospheric dynamics and surface conditions that may en…
Data-driven discovery of non-Newtonian astronomy via learning non-Euclidean Hamiltonian
Oswin So, Gongjie Li, Evangelos A. Theodorou +1
Incorporating the Hamiltonian structure of physical dynamics into deep learning models provides a powerful way to improve the interpretability and prediction accuracy. While previo…
Formation History of HD106906 and the Vertical Warping of Debris Disks by an External Inclined Companion
Nathaniel W. H. Moore, Gongjie Li, Lee Hassenzahl +3
HD106906 is a planetary system that hosts a wide-orbit companion, as well as an eccentric and flat debris disk, which hold important constraints on its formation and subsequent evo…
Low Spin-Axis Variations of Circumbinary Planets
Renyi Chen, Gongjie Li, Molei Tao
Having a massive moon has been considered as a primary mechanism for stabilized planetary obliquity, an example of which being our Earth. This is, however, not always consistent wi…
Blackhole Mergers Through Evection Resonances
Hareesh Gautham Bhaskar, Gongjie Li, Douglas N. C. Lin
Mechanisms have been proposed to enhance the merger rate of stellar mass black hole binaries, such as the Von Zeipel-Lidov-Kozai mechanism (vZLK). However, high inclinations are re…
Mutual Inclination of Ultra-Short-Period Planets with Time Varying Stellar J2-moment
Chen Chen, Gongjie Li, Cristobal Petrovich
Systems with ultra-short-period planets (USPs) tend to possess larger mutual inclinations compared to those with planets located farther from their host stars. This could be explai…
Secular Spin-orbit Resonances of Black Hole Binaries in AGN Disks
Gongjie Li, Hareesh Gautham Bhaskar, Bence Kocsis +1
The spin-orbit misalignment of stellar-mass black hole (sBH) binaries provide important constraints on the formation channels of merging sBHs. Here, we study the role of secular sp…
A robophysical model of spacetime dynamics
Shengkai Li, Hussain N. Gynai, Steven Tarr +4
Systems consisting of spheres rolling on elastic membranes have been used to introduce a core conceptual idea of General Relativity (GR): how curvature guides the movement of matte…
The Gliese 86 Binary System: A Warm Jupiter Formed in a Disk Truncated at 2 AU
Yunlin Zeng, Timothy D. Brandt, Gongjie Li +12
Gliese 86 is a nearby K dwarf hosting a giant planet on a 16-day orbit and an outer white dwarf companion on a century-long orbit. In this study we combine radial…
Raining Rocks: An analytical formulation for collision timescales in planetary systems
Santiago Torres, Smadar Naoz, Gongjie Li +1
The dynamical interaction of minor bodies (such as comets or asteroids) with planets plays an essential role in the planetary system's architecture and evolution. As a result of th…
Milankovitch Cycles for a Circumstellar Earth-analog within Centauri-like Binaries
Billy Quarles, Gongjie Li, Jack J. Lissauer
An Earth-analog orbiting within the habitable zone of Centauri B was shown to undergo large variations in its obliquity, or axial tilt, which affects the planetary climate by a…
Exomoons in Systems with a Strong Perturber: Applications to Cen AB
Billy Quarles, Siegfried Eggl, Marialis Rosario-Franco +1
The presence of a stellar companion can place constraints on occurrence and orbital evolution of satellites orbiting exoplanets, i.e., exomoons. In this work we revise earlier orbi…
TIC 172900988: A Transiting Circumbinary Planet Detected in One Sector of TESS Data
Veselin B. Kostov, Brian P. Powell, Jerome A. Orosz +86
We report the first discovery of a transiting circumbinary planet detected from a single sector of TESS data. During Sector 21, the planet TIC 172900988b transited the primary star…
Tilting Planets During Planet Scattering
Gongjie Li
Observational constraints on planet spin-axis has recently become possible, and revealed a system that favors a large spin-axis misalignment, a low stellar spin-orbit misalignment…
GRIT: a package for structure-preserving simulations of gravitationally interacting rigid-bodies
Renyi Chen, Gongjie Li, Molei Tao
Spin-orbit coupling of planetary systems plays an important role in the dynamics and habitability of planets. However, symplectic integrators that can accurately simulate not only…
Application of Orbital Stability and Tidal Migration Constraints for Exomoon Candidates
Billy Quarles, Gongjie Li, Marialis Rosario-Franco
Satellites of extrasolar planets, or exomoons, are on the frontier of detectability using current technologies and theoretical constraints should be considered in their search. In…
Effects of Flux Variation on the Surface Temperatures of Earth-like Circumbinary Planets
Srisurya Karthik Yadavalli, Billy Quarles, Gongjie Li +1
The Kepler Space telescope has uncovered around thirteen circumbinary planets (CBPs) that orbit a pair of stars and experience two sources of stellar flux. We characterize the top-…
Inclination Excitation of Solar System Debris Disk due to Stellar Flybys
Nathaniel W. H. Moore, Gongjie Li, Fred C. Adams
Most stars form in clusters where relatively close encounters with other stars are common and can leave imprints on the orbital architecture of planetary systems. In this paper, we…
Multiple Transits during a Single Conjunction: Identifying Transiting Circumbinary Planetary Candidates from TESS
Veselin B. Kostov, William F. Welsh, Nader Haghighipour +10
We present results of a study on identifying circumbinary planet candidates that produce multiple transits during one conjunction with eclipsing binary systems. The occurrence of t…
Mildly-Hierarchical triple dynamics and applications to the outer solar system
Hareesh Gautham Bhaskar, Gongjie Li, Sam Hadden +2
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 ra…
TOI-1338: TESS' First Transiting Circumbinary Planet
Veselin B. Kostov, Jerome A. Orosz, Adina D. Feinstein +65
We report the detection of the first circumbinary planet found by TESS. The target, a known eclipsing binary, was observed in sectors 1 through 12 at 30-minute cadence and in secto…