3 papers
astro-ph.EP2026
A Robust Launching Mechanism for Freely-Floating Planets from Host Stars with Close-in Planets
Xiaochen Zheng, Zhuoya Cao, Shigeru Ida +2
Secular perturbations from binary stars and distant massive planets can drive cold planets onto nearly parabolic orbits with pericenter passages extremely close to their host stars…
astro-ph.EP2025
On the coincidence between the close passage of HD7977 and the Pliocene-Pleistocene transition
Zhuoya Cao, Abraham Loeb, Morgan MacLeod
The Oort Cloud's dynamical evolution is significantly influenced by both the galactic tide and stellar flybys. This study investigates the particular case of HD7977's close encount…
astro-ph.EP2025
Planet Migration in Protoplanetary Disks with Rims
Zhuoya Cao, Ya-Ping Li, Douglas N. C. Lin +1
Complex structures, including sharp edges, rings and gaps, have been commonly observed in protoplanetary disks with or without planetary candidates. Here we consider the possibilit…