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Joint Constraints on Quantum Oppenheimer--Snyder Black Holes from High-Frequency Quasi-Periodic Oscillations in X-ray Binary Systems and the S2 Star Orbit
A. Errehymy, Y. Khedif, M. Daoud +4
We study a quantum-corrected version of the Oppenheimer--Snyder (OS) spacetime in which classical collapse is modified by a single effective-parameter \(α\), representing small-qua…
Observational Constraints on Kazakov-Solodukhin Quantum-Deformed Black Holes from M87 and Sgr A Shadows
A. Errehymy, Y. Khedif, M. Daoud +4
We explore the Kazakov-Solodukhin quantum-deformed black hole spacetime, characterized by a single deformation parameter \( η\) that encodes quantum corrections to the classical Sc…
Dymnikova-Schwinger quantum-corrected slowly rotating wormholes: Photon and spinning particle dynamics
A. Errehymy, Y. Khedif, M. Daoud +3
This work studies light propagation near slowly rotating traversable wormholes supported by a quantum-inspired matter source. The model is based on the Dymnikova density profile, v…
Event Horizon Telescope Observational Constraints on Dymnikova-Type Non-Singular Black Holes in Higher Dimensions
A. Errehymy, Y. Khedif, M. Daoud +3
Black holes are among the most compelling predictions of general relativity (GR) and are now strongly supported by observations from gravitational-wave detectors and the Event Hori…
Quantum corrections to Dymnikova-Schwinger black holes in Einstein-Gauss-Bonnet gravity
A. Errehymy, Y. Khedif, M. Daoud +3
This work investigates black holes within a modified framework of gravity that incorporates quantum-inspired corrections and a fundamental minimal length scale. By integrating Eins…
Possible wormholes in gravity sourced by solitonic quantum wave and cold dark matter halos and their repulsive gravity effect
Abdelghani Errehymy, Youssef Khedif, Orhan Donmez +3
In this paper, we present new generalized wormhole (WH) solutions within the context of gravity. Specifically, we focus on gravitational theories formulated in the me…