5 papers
TESS planets in known radial velocity cold Jupiter systems: Hot super Earth occurrence is enhanced by cold Jupiters
Quanyi Liu, Wei Zhu, Tianjun Gan +1
The correlation between inner super-Earths (SEs) and outer cold Jupiters (CJs) provides an important constraint on the formation and dynamical evolution of planetary systems. Previ…
Unexpected Near-Resonant and Metastable States of Young Multi-Planet Systems
Zhecheng Hu, Fei Dai, Wei Zhu +4
Recent observations suggest that the incidence of near-resonant planets declines as planetary systems age, making young planetary systems key signposts of early dynamical evolution…
The Resonant Remains of Broken Chains from Major and Minor Mergers
Rixin Li, Eugene Chiang, Nick Choksi +1
TESS and Kepler have revealed that practically all close-in sub-Neptunes form in mean-motion resonant chains, most of which unravel on timescales of 100 Myr. Using N-body integrati…
Detecting Planetary Oblateness in the Era of JWST: A Case Study of Kepler-167e
Quanyi Liu, Wei Zhu, Yifan Zhou +5
Planets may be rotationally flattened, and their oblateness thus provide useful information on their formation and evolution. Here we develop a new algorithm that can compute the t…
An Eccentric Binary with a Misaligned Circumbinary Disk
Zhecheng Hu, Wei Zhu, Fei Dai +4
We present spectroscopic and photometric observations of Bernhard-2, which was previously identified as a candidate system to host a misaligned circumbinary disk. Our spectroscopic…