5 papers
Black hole solutions surrounded by an anisotropic fluid in a Kalb--Ramond two--form background
Y. Sekhmani, A. Al-Badawi, Mohsen Fathi +2
We investigate static, spherically symmetric black hole spacetimes induced by the spontaneous Lorentz--symmetry breaking of a Kalb--Ramond (KR) two--form field, non--minimally coup…
The Influence of Uniform Magnetic Fields on Strong Field Gravitational Lensing by Kerr Black Holes
Amnish Vachher, Arun Kumar, Sushant G. Ghosh
We investigate strong gravitational lensing using magnetized Kerr black holes (MKBHs), which are accurate Kerr-Bertotti-Robinson solutions for Kerr black holes in a uniform magneti…
Testing Strong Gravitational Lensing Effects of Supermassive Black Holes with String-Inspired Metric: Observational Signatures and EHT Constraints
Amnish Vachher, Shafqat Ul Islam, Rahul Kumar Walia +1
We analyze gravitational lensing in the strong field limit for spherically symmetric string-inspired Euler-Heisenberg black holes, characterized by magnetic charge () and Einste…
Strong Gravitational Lensing by Rotating Quantum-Corrected Black Holes: Insights and Constraints from EHT Observations of M87* and Sgr A*
Amnish Vachher, Sushant G. Ghosh
We study gravitational lensing in the strong-field limit using the rotating quantum-corrected black hole (RQCBH) with an additional parameter besides mass and spin paramet…
Strong Gravitational Lensing by Static Black Holes in Effective Quantum Gravity
Yiyang Wang, Amnish Vachher, Qiang Wu +2
We investigate strong gravitational lensing by two static black hole models (Model-1 and Model-2) within the Effective Quantum Gravity (EQG) framework, characterized by mass an…