8 papers
No evidence for a supermassive black hole binary in GSN 069
Yuhe Zeng, Zhen Pan, Bin Liu +1
Quasi-periodic eruptions (QPEs) are recurrent soft X-ray flares from galactic nuclei and provide a new time-domain probe of stellar-mass objects (SMOs) orbiting supermassive black…
Population statistics of nanohertz gravitational wave sources
Jiming Yu, Zhen Pan, Xiao Xue +1
The recent detection of a nanohertz gravitational wave (GW) background by pulsar timing arrays (PTA) has sparked extensive discussions regarding its origin-whether it arises from a…
Extreme Mass Ratio Inspirals in Light of Quasi-periodic Eruptions: Milli-Hertz Gravitational Wave Background
Brennen Black, Xian Chen, Zhen Pan
Quasi-periodic eruptions (QPEs) are repeated X-ray bursts originating in galactic nuclei. Of the many proposed models, the favored model is the disk-collision model in which a stel…
Captured are circularized: A relativistic treatment of extreme mass ratio inspirals crossing accretion disks
Yuhe Zeng, Zhen Pan
A small body orbiting around an accreting massive object and periodically crossing its accretion disk is a common configuration in astrophysics. In this work, we investigate the se…
Secondary spins of extreme mass ratio inspirals: A probe to the formation channels
Qiuxin Cui, Wen-Biao Han, Zhen Pan
Extreme mass-ratio inspirals (EMRIs), consisting of a secondary (stellar mass) black hole (BH) orbiting around a supermassive BH, are one of the primary targets for future spacebor…
Secular evolution of quasi-periodic eruptions
Cong Zhou, Yuhe Zeng, Zhen Pan
Quasi-periodic eruptions (QPEs) are intense repeating soft X-ray bursts with recurrence times about a few hours to a few weeks from galactic nuclei. More and more analyses show tha…