Shadow and geometric scattering analysis of a new black hole with magnetic charge
Shadow and geometric scattering analysis of a new black hole with magnetic charge
We obtain a newly charged black hole with magnetic charge $q$ and coupling constant $\mu$ from the Einstein-nonlinear electrodynamics theory inspired by quasi-topological terms. We perform the shadow and geometric scattering analysis of this black hole. For $\mu=0.01$, we have four solution branches labelled by $2\pm$, 3, and 4 of the horizon, while there exists a single branch labelled by 2 for $\mu=0.1$. There is the naked singularity (NS) arisen from the magnetic charge extension of the photon spheres for the 3 and 4-branches. In case of $q<1$, shadow radii of the $2$-branch with $\mu$=0.01 and 0.1 are the same as that of the Reissner-Nordstr\"om black hole, while the 3-NS branch of $q>1$ is constrained by the EHT observation. The geometric scattering analysis is performed to understand the peculiar forms of the critical impact factors.
Yun Soo Myung
物理学
Yun Soo Myung.Shadow and geometric scattering analysis of a new black hole with magnetic charge[EB/OL].(2025-05-01)[2025-05-28].https://arxiv.org/abs/2505.00280.点此复制
评论