paper

Shadows of a Non-Commutative Black Hole under the Influence of a Magnetized Plasma

arXiv:2504.00581 · doi:10.1016/j.dark.2025.102064

Abstract

We investigate the properties of the shadow cast by a black hole (BH) in a non-commutative spacetime surrounded by a plasma medium. BHs in a plasma environment can exhibit complex interactions that profoundly affect their shadow properties. In specific terms, we consider a special type of plasma medium motivated from the interactions among axions, photons and plasma excitations, or commonly termed as axion-plasmon in the presence of a magnetic field. We have studied the effect of these plasma parameters and the non-commutative parameter on the shadow properties by focusing particularly on the photon sphere radius, angular shadow and the shadow observed from the observer's perspective. For this we have considered two different forms of plasma, viz homogeneous and inhomogeneous plasma. In this work we have presented the parameter dependence of these BH shadow properties. Finally, we have also studied the energy emission rate of the BH and how it depends on the model and plasma parameters.

arXiv comment17 pages, 10 Figures and 1 table. Matches with published version

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