2 papers
gr-qc2026
Critical Behavior of Photon Rings in Kerr-Bertotti-Robinson Spacetime
Xi Wan, Zhenyu Zhang, Fang-Stars Wei +2
In this work, we investigate the critical behavior of photon rings in the Kerr-Bertotti-Robinson spacetime, describing a rotating black hole immersed in a background magnetic field…
gr-qc2026
Geodesics and Shadows in the Kerr-Bertotti-Robinson Black Hole Spacetime
Xinyu Wang, Yehui Hou, Xi Wan +2
In this work, we investigate geodesics and black hole shadows in the Kerr-Bertotti-Robinson spacetime. We show that the equations of motion for null geodesics are separable and adm…