167 citations · 1.6k across the 60 of their papers we have counts for
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Geometric Approach to Light Rings in Axially Symmetric Spacetimes
Chenkai Qiao, Ming Li, Donghui Xie +1
Circular photon orbits have become an attractive topic in recent years. They play extremely important roles in black hole shadows, gravitational lensings, quasi-normal modes, and s…
Non-thermal Synchrotron Emission and Polarization Signatures during Black Hole Flux Eruptions
Fan Zhou, Jiewei Huang, Yuehang Li +4
In this work, we investigate synchrotron emission and the observational signatures of anisotropic non-thermal electrons during magnetic-flux eruptions in a magnetically arrested di…
Probing the Scalar Hair of Rotating Horndeski Black Holes through Thick Disk Images
Qian Wan, Yehui Hou, Minyong Guo
Horizon-scale images of black holes provide a potential probe of fundamental physics, including tests of gravity and black hole hair. To assess the impact of scalar hair on accreti…
Probing the Penrose Process: Images of Split Hotspots and Their Observational Signatures
Zhixing Zhao, Zhong-Ying Fan, Xiaobao Wang +2
While theoretically established for decades, the Penrose process - energy extraction from rotating black holes - still lacks clear observational evidence. A promising theoretical f…
Semi-analytical Study on the Polarized Images of Black Hole due to Frame Dragging
Xinyu Wang, Songbai Chen, Minyong Guo +1
An initially retrograde accretion flow is transformed into a prograde configuration before plunging into the black hole, as a result of the frame-dragging effect induced by the bla…
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…
Autocorrelation signatures in time-resolved black hole flare images: secondary peaks and convergence structure
Zhenyu Zhang, Yehui Hou, Minyong Guo +2
The strong gravitational field of a black hole bends light, forming multi-level images, yet extracting precise spacetime information from them remains challenging. In this study, w…