3 papers
astro-ph.EP2025
Intruder Alert: Breaking Resonant Chains with Planetesimal Flybys
Jiaru Li, Christopher E. O'Connor, Frederic A. Rasio
The orbital architectures of compact exoplanet systems record their complicated dynamical histories. Recent research supports the ``breaking-the-chains'' hypothesis, which proposes…
astro-ph.EP2020
Enhanced Lidov-Kozai migration and the formation of the transiting giant planet WD1856+534b
Christopher E. O'Connor, Bin Liu, Dong Lai
We investigate the possible origin of the transiting giant planet WD1856+534b, the first strong exoplanet candidate orbiting a white dwarf, through high-eccentricity migration (HEM…
astro-ph.EP2020
High-eccentricity migration of planetesimals around polluted white dwarfs
Christopher E. O'Connor, Dong Lai
Several white dwarfs with atmospheric metal pollution have been found to host small planetary bodies (planetesimals) orbiting near the tidal disruption radius. We study the physica…