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Black hole shadow in f(R) gravity with nonlinear electrodynamics*

JIAOJIAO SUN Yunqi Liu; Wei-Liang Qian; Songbai Chen; Rui-Hong Yue

Chinese Physics C v.47, n.2, art. 025104, p.1-9, 2023

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Título:
Black hole shadow in f(R) gravity with nonlinear electrodynamics*
Autor: JIAOJIAO SUN
Yunqi Liu; Wei-Liang Qian; Songbai Chen; Rui-Hong Yue
Assuntos: BURACOS NEGROS; COSMETOLOGIA; Black Hole Shadow; Nonlinear Electrodynamics; Effective Metric
É parte de: Chinese Physics C v.47, n.2, art. 025104, p.1-9, 2023
Notas: Disponível em: https://doi.org/10.1088/1674-1137/aca4bc. Acesso em: 26 out. 2023
Descrição: By analyzing the propagation of discontinuity in nonlinear electrodynamics, we numerically investigate the related black hole shadows of recently derived rotating black hole solutions in gravity. In this context, the geodesic motion of the relevant perturbations is governed by an effective geometry, which is closely related to the underlying spacetime metric. We derive the effective geometry, and the latter is used to determine the trajectory of the propagation vector of an arbitrary finite discontinuity in the electrodynamic perturbations, namely, the photon. Subsequently, the image of the black hole is evaluated using the ray-tracing technique. Moreover, we discuss the physical relevance of metric parameters, such as the nonlinear coupling, spin, and charge, by studying their impact on the resultant black hole shadows.
Editor: Beijing IOP Science
Data de criação/publicação: 2023
Formato: art. 025104, p. 1-9.
Idioma: Inglês

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