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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2508.20499 |
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| _version_ | 1866908633756860416 |
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| author | He, Zhen-Tao Du, Jia Jiao, Jiageng Shao, Caiying Shi, Junxi Tian, Yu Zhang, Hongbao |
| author_facet | He, Zhen-Tao Du, Jia Jiao, Jiageng Shao, Caiying Shi, Junxi Tian, Yu Zhang, Hongbao |
| contents | Amazingly, recent studies indicate that nonlinear effects are of great significance for modelling black hole ringdown. Transient electromagnetic events in the astrophysical environment are typically high energetic, potentially responsible for some nonlinearities in ringdown. Motivated by the desire to understand these nonlinearities, we solve the inhomogeneous Bardeen-Press-Teukolsky equation numerically, and find second-order gravitational tails induced by an electromagnetic source. Our results suggest that the second-order tails of curvature perturbations with multipole numbers $l\geq4$ decay as $t^{-2l-2}$ at fixed spatial position and $u^{-l-3}$ in retarded-time $u$ at null infinity, slower than their linear counterparts, which can play a role in multi-messenger observations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_20499 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Numerical computation of electromagnetically sourced nonlinear tails He, Zhen-Tao Du, Jia Jiao, Jiageng Shao, Caiying Shi, Junxi Tian, Yu Zhang, Hongbao General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena Amazingly, recent studies indicate that nonlinear effects are of great significance for modelling black hole ringdown. Transient electromagnetic events in the astrophysical environment are typically high energetic, potentially responsible for some nonlinearities in ringdown. Motivated by the desire to understand these nonlinearities, we solve the inhomogeneous Bardeen-Press-Teukolsky equation numerically, and find second-order gravitational tails induced by an electromagnetic source. Our results suggest that the second-order tails of curvature perturbations with multipole numbers $l\geq4$ decay as $t^{-2l-2}$ at fixed spatial position and $u^{-l-3}$ in retarded-time $u$ at null infinity, slower than their linear counterparts, which can play a role in multi-messenger observations. |
| title | Numerical computation of electromagnetically sourced nonlinear tails |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2508.20499 |