Optical Shadows of Rotating Bardeen AdS Black Holes
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 examine the shadow using one-dimensional real curves. By establishing the equations of motion of such AdS black holes wit...
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| creator | Belhaj, Adil Belmahi, Hajar Benali, Mohamed Hasan El Moumni Essebani, Mohammed Amine Moulay Brahim Sedra |
| description | 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 examine the shadow using one-dimensional real curves. By establishing the equations of motion of such AdS black holes without external dark sectors, we first analyze the shadow configurations in terms of a reduced moduli space involving only internal parameter contributions including the charge of the nonlinear electrodynamics. Among others, we find that this parameter serves as a geometric quantity controlling the shadow shape. Then, we graphically discuss the associated astronomical observables. Enlarging the moduli space, we analyze the behaviors of the quintessential black hole solutions in terms of the involved parameters controlling the dark field sector. Concretely, we observe that the dark energy not only affects the size but also deforms the shadow shape. Finally, we provide a possible link with observations from Event Horizon Telescope by showing certain constraints on the involved moduli space in the light of the M87\(^*\) picture. |
| doi_str_mv | 10.48550/arxiv.2202.10892 |
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| subjects | Black holes Dark energy Electrodynamics Equations of motion Event horizon Parameters Physics - General Relativity and Quantum Cosmology Rotation Shadows |
| title | Optical Shadows of Rotating Bardeen AdS Black Holes |
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