2 papers
astro-ph.HE2025
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…
gr-qc2025
Revisiting the shadow of Johannsen-Psaltis black holes
Xinyu Wang, Zhixing Zhao, Xiao-Xiong Zeng +1
The Johannsen-Psaltis (JP) metric provides a robust framework for testing the no-hair theorem of astrophysical black holes due to the regular spacetime configuration around JP blac…