http://arxiv.org/abs/1906.05935
The origin of recently discovered PeV neutrinos is an unsolved problem. In this work we consider a hadronic scenario to produce PeV neutrinos from a region around giant lobes of Centaurus A. Although ultrahigh-energy cosmic rays (UHECRs) are accelerated and confined by giant lobes, they can escape to be later injected in the inter-group medium where galaxies near the giant lobes provides the condition to confine them. UHECRs interact with low-energy photons and protons producing high-energy photons and neutrinos. We found that the IC35 event cannot be generated neither inside the giant lobes nor galaxies close to the lobes of Centaurus A.
E. Aguilar-Ruiz, N. Fraija, A. Galván-Gámez, et. al.
Mon, 17 Jun 19
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Comments: To appear in the Proceedings of the XV International Conference on Topics in Astroparticle and Underground Physics (TAUP2017) at Journal of Physics: Conference Series (JPCS)