3 papers
astro-ph.EP2025
Stellar Obliquity Excitation via Disk Dispersal-Driven Resonances in Binaries
Yubo Su, Dong Lai
The stellar obliquity of a planetary system is often used to help constrain the system's formation and evolution. One of the mechanisms to reorient the stellar spin involves a secu…
astro-ph.HE2025
A binary origin of ultra-long period radio pulsars
Ying-Han Mao, Xiang-Dong Li, Dong Lai +2
We propose a possible binary evolution model for the formation of ultra-long period pulsars (ULPPs). The model involves two key stages: first, a neutron star (NS) in wide binaries…
astro-ph.EP2024
Metal pollution in Sun-like stars from destruction of ultra-short-period planets
Christopher E. O'Connor, Dong Lai
Chemical evidence indicates that an appreciable fraction of Sun-like stars have engulfed rocky planets during their main-sequence lifetimes. We investigate whether the tidal evolut…