3 papers
gr-qc2026
Radiation properties of a regular black hole embedded in a Dehnen-type dark matter halo with a thin accretion disk
Tianyou Ren, Jing-Ya Zhao, Xiaomei Liu +1
We investigate the shadow, timelike geodesic structure, radiation properties of thin accretion disks, and optical appearance of a static spherically symmetric regular black hole, c…
gr-qc2026
Observational Signatures of Accretion Disks around a Schwarzschild Black Hole in a Hernquist Dark Matter Halo
Zhenglong Ban, Jing-Ya Zhao, Tian-You Ren +2
We investigate how a Hernquist type dark matter (DM) halo, parametrized by its core radius and central density , influences both the gravitational wave (GW) emission…
gr-qc2025
Regular hairy black holes through gravitational decoupling method
Yaobin Hua, Zhenglong Ban, Tian-You Ren +2
Within a framework requiring a well-defined event horizon and matter obeying the weak energy condition, we employ gravitational decoupling method to construct non-singular hairy bl…