Neutrino Emission from Gamma-ray Burst Jet Propagating inside the Cavity within Active Galactic Nucleus Accretion Disks
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| Main Authors: | , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866912890012827648 |
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| author | Yuan, Hao-Yu Xu, Wen-Long Wang, Kai Lei, Wei-Hua |
| author_facet | Yuan, Hao-Yu Xu, Wen-Long Wang, Kai Lei, Wei-Hua |
| contents | Short gamma-ray bursts (sGRBs) from the merger of binary compact objects (BCOs) could occur in the accretion disks of the active galactic nucleus (AGN). Before merging, the BCO will inevitably form a low-density cavity. The sGRB jet will interact with the AGN disk photons during its propagation through the cavity, leading to unique electromagnetic and neutrino signatures. In this work, we investigate the influence of the AGN disk photon field on neutrino emission within the internal dissipation regions of a two-component sGRB jet (a narrow core and a wide wing). We find that, due to the strong AGN disk photon field, the neutrino flux at high-energy part (e.g., PeV to EeV) will be suppressed, while the relatively lower-energy part (e.g., TeV to PeV) will be enhanced. Such a conclusion can enhance the constraints on GRB parameters (e.g., baryonic loading factor and bulk Lorentz factor) based on the future detection or non-detection of high-energy neutrinos from GRBs. Besides, the two-component jet can display two-bump structure at higher and lower energy in the neutrino spectrum. Therefore, the joint observations of electromagnetic and neutrinos emission can help us identify the sGRB jet and its structure in the AGN disk. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2602_08319 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Neutrino Emission from Gamma-ray Burst Jet Propagating inside the Cavity within Active Galactic Nucleus Accretion Disks Yuan, Hao-Yu Xu, Wen-Long Wang, Kai Lei, Wei-Hua High Energy Astrophysical Phenomena Short gamma-ray bursts (sGRBs) from the merger of binary compact objects (BCOs) could occur in the accretion disks of the active galactic nucleus (AGN). Before merging, the BCO will inevitably form a low-density cavity. The sGRB jet will interact with the AGN disk photons during its propagation through the cavity, leading to unique electromagnetic and neutrino signatures. In this work, we investigate the influence of the AGN disk photon field on neutrino emission within the internal dissipation regions of a two-component sGRB jet (a narrow core and a wide wing). We find that, due to the strong AGN disk photon field, the neutrino flux at high-energy part (e.g., PeV to EeV) will be suppressed, while the relatively lower-energy part (e.g., TeV to PeV) will be enhanced. Such a conclusion can enhance the constraints on GRB parameters (e.g., baryonic loading factor and bulk Lorentz factor) based on the future detection or non-detection of high-energy neutrinos from GRBs. Besides, the two-component jet can display two-bump structure at higher and lower energy in the neutrino spectrum. Therefore, the joint observations of electromagnetic and neutrinos emission can help us identify the sGRB jet and its structure in the AGN disk. |
| title | Neutrino Emission from Gamma-ray Burst Jet Propagating inside the Cavity within Active Galactic Nucleus Accretion Disks |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2602.08319 |