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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2602.14300 |
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| _version_ | 1866917278699749376 |
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| author | Sharma, Praveen Turyshev, Slava G. Barkov, Maxim V. Lyutikov, Maxim |
| author_facet | Sharma, Praveen Turyshev, Slava G. Barkov, Maxim V. Lyutikov, Maxim |
| contents | We demonstrate that magnetospheric interactions between merging neutron stars (NSs) generate dual-jetted current outflows, analogous to the Alfvén wings observed during planetary interactions in the Solar System. Using 3D relativistic MHD simulations, we model the interaction as a conducting sphere moving through a highly magnetized plasma of the companion's magnetosphere. Unusually, the interaction operates in a regime that is relativistic yet sub-Alfvénic. Electromagnetic draping amplifies magnetic fields in a narrow layer near the stellar surface, leading to the generation of electric currents along the local magnetic field. The generation of beamed outflows enhances the instantaneous power of the pulsar-like radio and high-energy emission, produces spin/orbital modulations, and is likely to lead to observable precursor emission preceding the main gravitational wave event. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_14300 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Production of Jets before Neutron Star Mergers Sharma, Praveen Turyshev, Slava G. Barkov, Maxim V. Lyutikov, Maxim High Energy Astrophysical Phenomena We demonstrate that magnetospheric interactions between merging neutron stars (NSs) generate dual-jetted current outflows, analogous to the Alfvén wings observed during planetary interactions in the Solar System. Using 3D relativistic MHD simulations, we model the interaction as a conducting sphere moving through a highly magnetized plasma of the companion's magnetosphere. Unusually, the interaction operates in a regime that is relativistic yet sub-Alfvénic. Electromagnetic draping amplifies magnetic fields in a narrow layer near the stellar surface, leading to the generation of electric currents along the local magnetic field. The generation of beamed outflows enhances the instantaneous power of the pulsar-like radio and high-energy emission, produces spin/orbital modulations, and is likely to lead to observable precursor emission preceding the main gravitational wave event. |
| title | Production of Jets before Neutron Star Mergers |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2602.14300 |