90 citations · 193 across the 14 of their papers we have counts for
14 papers
Black Holes and Black Strings in M-theory on Calabi-Yau threefolds with four Kähler parameters
A. Belhaj, H. Belmahi, A. Bouhouch +2
Combining toric geometry techniques and supergravity formalisms, we study 5D black branes in the M-theory compactification on a four parameter Calabi-Yau threefold.…
Constrained Deflection Angle and Shadows of Rotating Black Holes in Einstein-Maxwell-scalar Theory
Hajar Belmahi
Motivated by recent Event Horizon Telescope findings, we investigate constrained optics of rotating black holes in Einstein-Maxwell-scalar gravity theory. Precisely, we mainly stud…
Swampland Statistics for Black Holes
Saad Eddine Baddis, Adil Belhaj, Hajar Belmahi
In this work, we approach certain black hole issues, including remnants, by providing a statistical description based on the weak gravity conjecture in the swampland program. Inspi…
Optical Aspect of Cosmological Black Holes in Einstein-Maxwell-Dilaton Theory
Hajar Belmahi, Amin Mohamed Rbah
Motivated by string theory scenarios, we study the optical aspect of AdS black holes in Einstein-Maxwell-dilaton theory. Concretely, we investigate and examine the shadows and the…
On 5D Black Brane Stabilities from M-theory on Three Parameter Calabi-Yau Threefolds
A. Belhaj, H. Belmahi, A. Bouhouch +1
In this work, we reconsider the study of 5D black branes in M-theory compactifications by means of supergravity formalism. Precisely, we provide a model relaying on…
Deflection angle and Shadows by Black Holes in Starobinsky-Bel-Robinson Gravity from M-theory
A. Belhaj, H. Belmahi, M. Benali +2
Motivated by M-theory compactifications, we investigate optical properties of black holes in the Starobinsky-Bel-Robinsion gravity. Precisely, we study the shadows and the deflecti…
Light Trajectories and Thermal Shadows casted by Black Holes in a Cavity
A. Belhaj, H. Belmahi, M. Benali +2
We explore the shadows and the photon rings casted by black holes in cavity. Placing the observer inside such an isothermal background, we examine the influence of the cavity tempe…
Light Deflection by Rotating Regular Black Holes with a Cosmological Constant
A. Belhaj, H. Belmahi, M. Benali +1
Using the Gauss-Bonnet theorem, we compute and examine the deflection angle of light rays by rotating regular black holes with a cosmological constant. By the help of optical geome…
Light Deflection Angle by Superentropic Black Holes
A. Belhaj, H. Belmahi, M. Benali +1
Motivated by recent works on light deflection and shadow behaviors on AdS geometries, we investigate the deflection angle of light rays by superentropic black holes. Taking appropr…
Optical Shadows of Rotating Bardeen AdS Black Holes
Adil Belhaj, Hajar Belmahi, Mohamed Benali +3
Using the Hamilton-Jacobi method, we study certain optical shadows of rotating Bardeen-AdS black holes in the presence of internal and external field contributions. Precisely, we e…
Deflection Light Behaviors by AdS Black Holes
A. Belhaj, H. Belmahi, M. Benali
We investigate the behavior of the deflection of light rays by charged and rotating AdS black holes using the Gauss-Bonnet formalism. Taking weak field approximations and certain a…
Superentropic AdS Black Hole Shadows
A. Belhaj, H. Belmahi, M. Benali
We study shadow aspects of superentropic black holes in four dimensions. Using Hamilton-Jacobi formalism, we first get the null geodesic equations. In the celestial coordinate fram…
On M-theory on Real Toric Fibrations
A. Belhaj, H. Belmahi, M. Benali +3
Borrowing ideas from elliptic complex geometry, we approach M-theory compactifications on real toric fibrations. Precisely, we explore real toric equations rather than complex ones…
Shadows of 5D Black Holes from String Theory
A. Belhaj, H. Belmahi, M. Benali +3
We study the shadow behaviors of five dimensional (5D) black holes embedded in type IIB superstring/supergravity inspired spacetimes by considering solutions with and without rotat…