arXiv Open Access 2026

High-Energy Neutrino Emission in NGC1068 driven by Turbulent Magnetic Reconnection

Luana Passos-Reis Elisabete M. de Gouveia Dal Pino Juan C. Rodríguez-Ramírez Giovani H. Vicentin
Lihat Sumber

Abstrak

Astrophysical neutrinos from Active Galactic Nuclei (AGN) offer a unique window into high-energy particle acceleration in obscured environments. The nearby Type II Seyfert galaxy NGC 1068 is a compelling example, exhibiting evidence of a high-energy neutrino excess without an associated TeV $γ$-ray counterpart. This suggests that hadronic processes may occur within an inner, magnetically dominated region, where the TeV emission is suppressed by $γγ$ absorption and reprocessed via electromagnetic cascades in the dense, obscured environment. Building on our framework, which establishes turbulence-driven magnetic reconnection as the main driver for particle acceleration in this source, we present a refined lepto-hadronic model based on de Gouveia Dal Pino & Lazarian (2005) and Kadowaki et al. (2015). In these proceedings, we adopt a conservative inner disk radius compared to our previous results, moving the acceleration region further from the innermost stable circular orbit. We estimate the high-energy neutrino emission from hadronic and photo-hadronic processes, constrained by the acceleration timescale for first-order Fermi acceleration within the turbulent current sheet. The estimated model reproduces the IceCube neutrino flux excess, providing an essential technical complement and validation for our forthcoming comprehensive publication.

Topik & Kata Kunci

Penulis (4)

L

Luana Passos-Reis

E

Elisabete M. de Gouveia Dal Pino

J

Juan C. Rodríguez-Ramírez

G

Giovani H. Vicentin

Format Sitasi

Passos-Reis, L., Pino, E.M.d.G.D., Rodríguez-Ramírez, J.C., Vicentin, G.H. (2026). High-Energy Neutrino Emission in NGC1068 driven by Turbulent Magnetic Reconnection. https://arxiv.org/abs/2603.07883

Akses Cepat

Lihat di Sumber
Informasi Jurnal
Tahun Terbit
2026
Bahasa
en
Sumber Database
arXiv
Akses
Open Access ✓