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| 001 | 626009 | ||
| 005 | 20250714214031.0 | ||
| 024 | 7 | _ | |2 arXiv |a arXiv:2502.01738 |
| 024 | 7 | _ | |2 altmetric |a altmetric:173828130 |
| 037 | _ | _ | |a PUBDB-2025-01246 |
| 041 | _ | _ | |a English |
| 088 | _ | _ | |2 arXiv |a arXiv:2502.01738 |
| 100 | 1 | _ | |0 P:(DE-H253)PIP1111196 |a Fiorillo, Damiano Francesco Giuseppe |b 0 |e Corresponding author |
| 245 | _ | _ | |a Can the neutrinos from TXS 0506+056 have a coronal origin? |
| 260 | _ | _ | |c 2025 |
| 336 | 7 | _ | |0 PUB:(DE-HGF)25 |2 PUB:(DE-HGF) |a Preprint |b preprint |m preprint |s 1748419468_1138320 |
| 336 | 7 | _ | |2 ORCID |a WORKING_PAPER |
| 336 | 7 | _ | |0 28 |2 EndNote |a Electronic Article |
| 336 | 7 | _ | |2 DRIVER |a preprint |
| 336 | 7 | _ | |2 BibTeX |a ARTICLE |
| 336 | 7 | _ | |2 DataCite |a Output Types/Working Paper |
| 500 | _ | _ | |a 7 pages, 2 figures, plus appendices |
| 520 | _ | _ | |a The blazar TXS 0506+056 has been the first astrophysical source associated with high-energy astrophysical neutrinos, and it has emerged as the second-most-prominent hotspot in the neutrino sky over ten years of observations. Although neutrino production in blazars has traditionally been attributed to processes in the powerful relativistic jet, the observation of a significant neutrino flux from NGC 1068 -- presumably coming from the Active Galactic Nucleus (AGN) corona -- suggests that neutrinos can also be produced in the cores of AGN. This raises the question whether neutrino production in TXS~0506+056 is also associated with the core region. We study this scenario, focusing on the hypothesis that this blazar is a masquerading BL Lac, a high-excitation quasar with hidden broad emission lines and a standard accretion disk. We show that magnetic reconnection is an acceleration process necessary to reach tens of PeV proton energies, and we use observationally motivated estimates of the X-ray luminosity of the coronal region to predict the emission of secondaries and compare them to the observed multi-wavelength and neutrino spectra of the source. We find that the coronal neutrino emission from TXS 0506+056 is too low to describe the IceCube observed neutrinos from this AGN, which in turn suggests that the blazar jet remains the preferred location for neutrino production. |
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| 700 | 1 | _ | |0 P:(DE-H253)PIP1106726 |a Testagrossa, Federico |b 1 |u desy |
| 700 | 1 | _ | |a Petropoulou, Maria |b 2 |
| 700 | 1 | _ | |0 P:(DE-H253)PIP1021242 |a Winter, Walter |b 3 |u desy |
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