Study of PeV neutrinos around dwarf galaxies near giant lobes of Centaurus A

Abstract

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.

arXiv commentTo appear in the Proceedings of the XV International Conference on Topics in Astroparticle and Underground Physics (TAUP2017) at Journal of Physics: Conference Series (JPCS)

References in corpus (21)

• The Global Schmidt Law in Star Forming Galaxies
• High Energy Neutrinos from Cosmological Gamma-Ray Burst Fireballs
• Correlation of the highest energy cosmic rays with nearby extragalactic objects
• Centaurus A - NGC 5128
• The Cumulative Bakground of High-Energy Neutrinos from Starburst Galaxies
• Searches for Anisotropies in the Arrival Directions of the Highest Energy Cosmic Rays Detected by the Pierre Auger Observatory
• The extragalactic background light revisited and the cosmic photon-photon opacity
• Ultra High Energy Cosmic Rays from Black Hole Jets of Radio Galaxies
• Magnetic fields in Local Group dwarf irregulars
• Mass entrainment and turbulence-driven acceleration of ultra-high energy cosmic rays in Centaurus A
• On The Origin of IceCube's PeV Neutrinos
• GeV - PeV Neutrino Production and Oscillation in hidden jets from GRBs
• The Circumnuclear Molecular Gas in the Seyfert Galaxy NGC4945
• Interstellar medium disruption in the Centaurus A group
• Star-forming galaxies as the origin of the IceCube PeV neutrinos
• Gamma-ray fluxes from the core emission of Centaurus A: A puzzle solved
• Neutrino, $\gamma$-ray and cosmic ray fluxes from the core of the closest radio galaxies
• Star Formation in Dwarf Galaxies of the Nearby Centaurus A Group
• Correlation of $\gamma$-ray and high-energy cosmic ray fluxes from the giant lobes of Centaurus A
• How many Ultra High Energy Cosmic Rays could we expect from Centaurus A?
• Limits on the source properties of FR-I galaxies from high-energy neutrino and gamma observations