Gravitational lensing by non-self-intersecting vortons
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
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2025
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| author | Putra, Leonardus B. Ramadhan, H. S. |
| author_facet | Putra, Leonardus B. Ramadhan, H. S. |
| contents | We investigate the gravitational lensing signatures of vorton configurations, considering the circular vorton, the Kibble-Turok vorton, and a newly proposed class that incorporates simultaneous excitations of the first, second, and third harmonic modes. Working within the weak-field and thin-lens approximations, we demonstrate that circular vortons produce a sharp lensing discontinuity that separates two regions with qualitatively distinct distortions. The corresponding Einstein ring co-exists alongside an almost undistorted source image. This effect is significantly amplified in the case of non-circular vortons, where asymmetries and higher-harmonic deformations amplify the discontinuity and lead to complex image structures. These distinctive lensing patterns offer potential discriminants between different vorton configurations, suggesting that future high-resolution surveys may provide a novel window into the microphysics of current-carrying cosmic strings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_11025 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Gravitational lensing by non-self-intersecting vortons Putra, Leonardus B. Ramadhan, H. S. High Energy Physics - Theory High Energy Astrophysical Phenomena We investigate the gravitational lensing signatures of vorton configurations, considering the circular vorton, the Kibble-Turok vorton, and a newly proposed class that incorporates simultaneous excitations of the first, second, and third harmonic modes. Working within the weak-field and thin-lens approximations, we demonstrate that circular vortons produce a sharp lensing discontinuity that separates two regions with qualitatively distinct distortions. The corresponding Einstein ring co-exists alongside an almost undistorted source image. This effect is significantly amplified in the case of non-circular vortons, where asymmetries and higher-harmonic deformations amplify the discontinuity and lead to complex image structures. These distinctive lensing patterns offer potential discriminants between different vorton configurations, suggesting that future high-resolution surveys may provide a novel window into the microphysics of current-carrying cosmic strings. |
| title | Gravitational lensing by non-self-intersecting vortons |
| topic | High Energy Physics - Theory High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2503.11025 |