2 papers
gr-qc2025
Probing a regular black hole within asymptotically safe gravity via strong gravitational lensings and optical appearances
Xiao-Jun Gao
In this paper, we investigate the strong gravitational lensing effects and optical appearances around a spherically symmetric regular black hole, whose metric is derived from a non…
gr-qc2025
Investigating shadow of a rotating charged black hole with a cosmological constant immersed in the perfect fluid dark matter
Zheng-Long Ban, Xiao-Jun Gao, Jinsong Yang
In this paper, we mainly investigate the shadow of a rotating charged black hole with a cosmological constant immersed in perfect fluid dark matter. We first obtain the charged sph…