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arXiv · 2604.06259

Shadow, Sparsity of Radiation and Energy Emission Rate in Skyrmion Black Holes

Faizuddin Ahmed·Ahmad Al-Badawi·İzzet Sakallı
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Abstract

We examine several observable optical properties of a Skyrmion black hole (BH), focusing on the photon sphere, BH shadow, and photon trajectories. The Skyrme term, along with other geometric parameters of the spacetime, determines the photon sphere location and shapes the resulting BH shadow. Parameter variations produce observable departures from standard BH geometries, offering potential signatures of nonlinear field effects. We also analyze the sparsity of Hawking radiation and the associated energy emission spectra, showing how these quantities respond to the Skyrme coupling and background parameters. Our findings illuminate the connection between nonlinear field contributions and BH optics, with implications for observational and theoretical studies of modified gravity scenarios.

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Faizuddin Ahmed, Ahmad Al-Badawi, İzzet Sakallı. 2026-04-06. Shadow, Sparsity of Radiation and Energy Emission Rate in Skyrmion Black Holes. https://arxiv.org/abs/2604.06259

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