3 papers
astro-ph.GA2026
A model for the enhanced production rate of early-type hypervelocity stars in the Galactic halo
Chunyang Cao, F. K. Liu, Xian Chen +1
About twenty late B-type hypervelocity stars (HVSs) traveling faster than the Galactic escape velocity have been discovered in the Galactic halo, many of which were ejected from th…
astro-ph.HE2025
A Recent Supermassive Black Hole Binary in the Galactic Center Unveiled by the Hypervelocity Stars
Chunyang Cao, Fukun Liu, Shuo Li +2
When a binary of early-type stars from the young stellar populations in the Galactic center (GC) region is scattered to the vicinity of the supermassive black hole (SMBH) Sgr~$\rm{…
astro-ph.HE2024
Formation Rate of Quasiperiodic Eruptions in Galactic Nuclei Containing Single and Dual Supermassive Black Holes
Chunyang Cao, F. K. Liu, Xian Chen +1
Quasiperiodic eruptions (QPEs) are a novel class of transients recently discovered in a few extragalactic nuclei. It has been suggested that a QPE can be produced by a main-sequenc…