https://doi.org/10.1140/epjc/s10052-024-12627-7
Regular Article - Theoretical Physics
Trajectories of photons around a rotating black hole with unusual asymptotics
1
Research Center for Theoretical Physics, School of Science, Jiangsu University of Science and Technology, Zhenjiang, China
2
Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University, 225009, Yangzhou, China
Received:
26
January
2024
Accepted:
27
February
2024
Published online:
14
March
2024
Most black hole solutions are characterized with asymptotically flat, or asymptotically (anti) de-Sitter behaviors, but some black holes with unusual asymptotics have also been constructed, which is believed to provide remarkable insights into our understanding of the nature of gravity. In this paper, focusing on a rotating black hole with unusual asymptotics in Einstein–Maxwell-dilaton (EMD) theory, we innovatively analyze the photons’ trajectories around this black hole background, showing that the unusual asymptotics has significant influences on the photons’ trajectories. We expect that our analysis could give more insights in the scenario of black holes’ shadow and image.
© The Author(s) 2024
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