Shadows and Polarimetric Signatures of Rotating Simpson-Visser Black Holes with Thick Disk Illumination
Abstract
In this manuscript, we investigate the shadow and polarization images of a Simpson-Visser rotating black hole surrounded by a ballistic approximation accretion flow model. Solving the numerically geodesic and radiative transfer equations, we discuss the influence of the regularization parameter g, spin parameter a, and observer inclination angle θo on the resulting images at 230 GHz with an infalling motion. The results interpret that, a bright circular ring corresponding to higher-order images is observed, accompanied by an inner region of decreased intensity. Both g and a has little influence on the size of the higher-order images, but significantly changes their shape and intensity distribution. Whereas, variation in θo modify the image morphology, producing a crescent-shaped bright region on the left side. Finally, the polarization patterns trace the brightness distribution and vary with both g and a, reflecting the spacetime structure. These results demonstrates that the intensity and polarization in thick disk models provide probes of Simpson-Visser rotating black holes and near-horizon accretion physics.
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BibTeX
@misc{chen2026shadows,
title = {{Shadows and Polarimetric Signatures of Rotating Simpson-Visser Black Holes with Thick Disk Illumination}},
author = {Bing-Bing Chen and Deyou Chen and Yu-Kang Wang and Muhammad Israr Aslam and Rabia Saleem and Nazek Alessa},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.12561},
eprint = {2609.12561},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.12561},
}
RIS
TY - UNPB
TI - Shadows and Polarimetric Signatures of Rotating Simpson-Visser Black Holes with Thick Disk Illumination
AU - Bing-Bing Chen
AU - Deyou Chen
AU - Yu-Kang Wang
AU - Muhammad Israr Aslam
AU - Rabia Saleem
AU - Nazek Alessa
PY - 2026
DA - 2026/09/11
PB - arXiv
DO - 10.48550/arxiv.2609.12561
UR - https://arxiv.org/abs/2609.12561
AB - In this manuscript, we investigate the shadow and polarization images of a Simpson-Visser rotating black hole surrounded by a ballistic approximation accretion flow model. Solving the numerically geodesic and radiative transfer equations, we discuss the influence of the regularization parameter g, spin parameter a, and observer inclination angle θ_o on the resulting images at 230 GHz with an infalling motion. The results interpret that, a bright circular ring corresponding to higher-order images is observed, accompanied by an inner region of decreased intensity. Both g and a has little influence on the size of the higher-order images, but significantly changes their shape and intensity distribution. Whereas, variation in θ_o modify the image morphology, producing a crescent-shaped bright region on the left side. Finally, the polarization patterns trace the brightness distribution and vary with both g and a, reflecting the spacetime structure. These results demonstrates that the intensity and polarization in thick disk models provide probes of Simpson-Visser rotating black holes and near-horizon accretion physics.
ER -