2 papers
gr-qc2026
Novel extended inner shadow in images of Johannsen-Psaltis black holes with thin accretion disks
Xinyu Wang, Xiaobao Wang, Xin-Yang Wang +1
The Johannsen-Psaltis (JP) metric is constructed by introducing deviation parameters into the Kerr metric. The presence of these deviation parameters provides additional degrees of…
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…