Giant AGN Flares and Cosmic Ray Bursts

Abstract

We predict a new class of very intense, short-duration AGN flares capable of accelerating the highest energy cosmic rays, resulting from the tidal disruption of a star or from a disk instability. The rate and power of these flares readily explains the observed flux and density statistics of UHECRs. The photon bursts produced by the predicted AGN flares are discussed; they may soon be detectable. Observations are shown to exclude that continuous jets of powerful Active Galactic Nuclei are the sole source of ultrahigh energy cosmic rays; the stringent requirements for Gamma Ray Bursts to be the source are delineated.

Obtained a more constraining prediction for photon counterparts of the predicted AGN flares, elaborated the discussion of AGN luminosity associated with UHECR acceleration, and corrected minor typos

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Cited by in corpus (118)

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• A concordance scenario for the observed neutrino from a Tidal Disruption Event
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• Very-High-Energy Gamma-Ray Signal from Nuclear Photodisintegration as a Probe of Extragalactic Sources of Ultrahigh-Energy Nuclei
• Neutrino Emission from an Off-Axis Jet Driven by the Tidal Disruption Event AT2019dsg
• Ultra-high-energy-cosmic-ray hot spots from tidal disruption events
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• Constraints on the Local Sources of Ultra High-Energy Cosmic Rays
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• Electromagnetic Cascade Emission from Neutrino-Coincident Tidal Disruption Events
• What is the nature and origin of the highest-energy particles in the universe?
• Constraining Sources of Ultra High Energy Cosmic Rays Using High Energy Observations with the Fermi Satellite
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• Ultra-High-Energy Cosmic Rays from Low-Luminosity Active Galactic Nuclei
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