3 papers
astro-ph.CO2026
Spherically Symmetric Fluid Simulations of Black Hole Accretion in Self-Interacting Dark Matter Halos
Zhe Meng, Tan Chen, Bocheng Zhu +4
We investigate black hole accretion in self-interacting dark matter (SIDM) halos using a self-gravitating fluid model with thermal conduction. We develop a robust one-dimensional s…
gr-qc2025
Periodic Gravitational Lensing with Oscillating Boson Stars
Xing-Yu Yang, Tan Chen, Rong-Gen Cai
We show that oscillating (real-scalar) boson stars generically host an \emph{oscillating radial caustic}. Sources near this caustic cross it every half period, thereby producing pe…
astro-ph.CO2025
Modulations of Gravitational Waves due to Non-static Gravitational Lenses
Xing-Yu Yang, Tan Chen, Rong-Gen Cai
Gravitational waves (GWs) offer a new observational window into the universe, providing insights into compact objects and cosmic structures. Gravitational lensing, commonly studied…