41 citations · 208 across the 11 of their papers we have counts for
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gr-qc2022★ 33 cited
Curvatures, Photon Spheres and Black Hole Shadows
Chen-Kai Qiao
In a recent work PRD 106, L021501 (2022), a new geometric approach is proposed to obtain the photon sphere (circular photon orbit) and the black hole shadow radius. In this approac…
gr-qc2022★ 41 cited
Geometric Approach to Circular Photon Orbits and Black Hole Shadows
Chen-Kai Qiao, Ming Li
Circular photon orbit and black hole shadow are significantly important issues in physics and astronomy, and a number of breakthroughs have been witnessed in recent years. Conventi…
gr-qc2021★ 24 cited
The Gravitational Bending of Acoustic Schwarzschild Black Hole
Chen-Kai Qiao, Mi Zhou
Acoustic black hole is becoming an attractive topic in recent years, for it open-up new direction for experimental / observational explorations of black holes. In this work, the gr…