2017/07/25 by R. C. dos Anjos, R. C. Anjos, Carlos H. Coimbra-Araújo +1 · 5 citations
Physics and Astronomy · #Accretion (finance) #Active galactic nucleus #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmic ray #Flux (metallurgy) #Galaxy #Gamma-ray bursts and supernovae #Magnetic field #Magnetic flux #Optics #Outflow #Physics #Radiative transfer #astro-ph.HE
paper · pdf · doi:10.1103/physrevd.96.023008
published in Physical review. D/Physical review. D. 96(2) (American Physical Society) · 3 figures. arXiv admin note: text overlap with arXiv:1310.0325, arXiv:astro-ph/9809093 by other authors
openalex publication_date 2017/07/25 · arxiv created 2018/03/06 · arxiv updated 2018/03/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In the present paper we investigate the production of ultrahigh energy cosmic rays (UHECRs) from Seyferts. We discuss the UHECR luminosities obtained by two possible engine trigger models: pure radiative transfer and the energy extraction from poloidal magnetic flux. The first case is modeled by Kerr slim disk or Bondi accretion mechanisms. Since it is assumed that the broadband spectra of Seyferts indicate that at least the outer portions of their accretion disks are cold and geometrically thin, and since our results point that the consequent radiative energy transfer is inefficient, we build the second approach based on massive Seyferts with sufficient central poloidal magnetic field to trigger an outflow of magnetically driven charged particles capable to explain the observed UHECRs and gamma rays in Earth experiments from a given Seyfert source.