On Lorentz Variability of Magnetically Dominated Relativistic Outflows

[2512.18323] On Lorentz Variability of Magnetically Dominated Relativistic Outflows Skip to main content Search Submit Donate Log in Astrophysics > High Energy Astrophysical Phenomena arXiv:2512.18323 (astro-ph) [Submitted on 20 Dec 2025 ( v1 ), last revised 26 Aug 2026 (this version, v3)] Title: On Lorentz Variability of Magnetically Dominated Relativistic Outflows Authors: V. I. Berezhiani , N. L. Shatashvili , A. G. Tevzadze View PDF HTML (experimental) Abstract: We show that magnetized relativistic outflows can exhibit a relativistic effect in which Lorentz transformation maps spatially extended magnetic field structure into apparent temporal variability in the observer's frame. Using a force-free Beltrami configurations as representative equilibria of magnetically dominated outflows, we demonstrate that Lorentz mapping of stationary helical magnetic field produces quasi-periodic modulation of observable electromagnetic signatures, without invoking intrinsic plasma variability. The same mechanism naturally generates temporal evolution of the observed polarization properties, producing smooth, generally aperiodic polarization-angle swings in the observer's frame. This effect may be described as an aberration of force-free magnetic fields under Lorentz transformation. The characteristic frequency of the time variability is determined by the helical wave-number of the magnetic field, the viewing angle, and the bulk Lorentz factor of the jet outflow, and scales linearly with $\Gamma$. This establishes a purely kinematic relativistic origin of variability and introduces the concept of magnetic Lorentz seismology: the inference of magnetic field structure in relativistic outflows directly from observed temporal variability. Comments: 16 pages, 2 figures. Accepted for publication in Physica Scripta Subjects: High Energy Astrophysical Phenomena (astro-ph.HE) ; Plasma Physics (physics.plasm-ph) Cite as: arXiv:2512.18323 [astro-ph.HE] (or arXiv:2512.18323v3 [astro-ph.HE] for this version) https://doi.org/10.48550/arXiv.2512.18323 Focus to learn more arXiv-issued DOI via DataCite Related DOI : https://doi.org/10.1088/1402-4896/ae90ff Focus to learn more DOI(s) linking to related resources Submission history From: Alexander Tevzadze G. [ view email ] [v1] Sat, 20 Dec 2025 11:46:17 UTC (65 KB) [v2] Mon, 27 Jul 2026 14:33:15 UTC (533 KB) [v3] Wed, 26 Aug 2026 18:30:06 UTC (533 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Additional Features Audio Summary Current browse context: astro-ph.HE < prev | next > new | recent | 2025-12 Change to browse by: astro-ph physics physics.plasm-ph References & Citations INSPIRE HEP SciX Google Scholar Semantic Scholar export BibTeX citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab)

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