High energy neutrinos from primary cosmic rays accelerated in the cores of active galaxies

Details High energy neutrinos from primary cosmic rays accelerated in the cores of active galaxies High energy neutrinos from primary cosmic rays accelerated in the cores of active galaxies

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icrc....4..642s&link_type=abstract

IN: International Cosmic Ray Conference, 22nd, Dublin, Republic of Ireland, Aug. 11-23, 1991, Laboratory for High Energy Astroph

Astronomy and Astrophysics

Astronomy

Active Galactic Nuclei, Energetic Particles, Neutrinos, Particle Acceleration, Primary Cosmic Rays, Energy Spectra, Particle Flux Density, Ultraviolet Astronomy, X Ray Astronomy

Scientific paper

The spectra and high-energy neutrino fluxes are calculated from photomeson production in active galactic nuclei (AGN) such as quasars and Seyfert galaxies using recent UV and X-ray observations to define the photon fields and an accretion-disk shock-acceleration model for producing ultrahigh-energy cosmic rays in the AGN. Collectively AGN should produce the dominant isotropic neutrino background between 10 exp 4 and 10 exp 10 GeV. Measurement of this background could be critical in determining the energy-generation mechanism, evolution, and distribution of AGN. High-energy background spectra and spectra from bright AGN such as NGC4151 and 3C273 are predicted which should be observable with present detectors. High energy AGN nus should produce a sphere of stellar disruption around their cores which could explain their observed broad-line emission regions.

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