Topology-Induced Anisotropies in Black Hole Photon Rings
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| Format: | Recurso digital |
| Sprache: | Englisch |
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2026
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| _version_ | 1866901201397743616 |
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| author | Eksioglu, Serkan |
| author_facet | Eksioglu, Serkan |
| contents | <p>We report a falsifiable deviation from the Kerr prediction for black hole photon rings. We show that a non-factorizable causal topology induces anisotropic broadening of the photon ring with angular harmonics forbidden(i.e., exponentially suppressed at observable levels) in General Relativity (GR). The effect is parameterized by a single dimensionless amplitude ϵ, producing characteristic multipole components beyond those generated by spin, lensing, or plasma effects. We argue that current and near-future Event Horizon Telescope (EHT) observations can directly constrain or exclude this signal.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18427272 |
| institution | Zenodo |
| language | eng |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Topology-Induced Anisotropies in Black Hole Photon Rings Eksioglu, Serkan Black holes Photon ring <p>We report a falsifiable deviation from the Kerr prediction for black hole photon rings. We show that a non-factorizable causal topology induces anisotropic broadening of the photon ring with angular harmonics forbidden(i.e., exponentially suppressed at observable levels) in General Relativity (GR). The effect is parameterized by a single dimensionless amplitude ϵ, producing characteristic multipole components beyond those generated by spin, lensing, or plasma effects. We argue that current and near-future Event Horizon Telescope (EHT) observations can directly constrain or exclude this signal.</p> |
| title | Topology-Induced Anisotropies in Black Hole Photon Rings |
| topic | Black holes Photon ring |
| url | https://doi.org/10.5281/zenodo.18427272 |