Ultra high energy cosmic rays and possible signature of black strings
arXiv:1510.04992 · doi:10.1088/1475-7516/2016/03/014
Abstract
Ultra high energy cosmic rays (UHECRs) probably originate in extreme conditions in which extra dimension effects might be important. In this paper we calculate the correction in black hole accretion mechanisms due to extra dimension effects in the static and rotating cases. A parametrization of the external Kerr horizons in both cases is presented and analysed. We use previous calculations of upper limits on the UHECR flux to set limits on the UHECR production efficiency of nine sources. The upper limit on the UHECR luminosity calculation is based on GeV-TeV gamma-ray measurements. The total luminosity due to the accretion mechanism is compared to the upper limit on UHECRs. The dependence of the UHECR production efficiency upper limit on black hole mass is also presented and discussed
16 pages, 5 figures
References in corpus (12)
- The Confrontation between General Relativity and Experiment
- Radio-Loudness of Active Galactic Nuclei: Observational Facts and Theoretical Implications
- Cosmic Rays from the Knee to the Highest Energies
- Energy spectra of gamma-rays, electrons and neutrinos produced at interactions of relativistic protons with low energy radiation
- Origin of the ankle in the ultra-high energy cosmic ray spectrum and of the extragalactic protons below it
- The Fundamental Plane of Black Hole Activity in the Optical Band
- Black string corrections in variable tension braneworld scenarios
- Upper Limits from HESS AGN Observations in 2005-2007
- Casadio-Fabbri-Mazzacurati Black Strings and Braneworld-induced Quasars Luminosity Corrections
- Regular Bulk Solutions in Brane-worlds with Inhomogeneous Dust and Generalized Dark Radiation
- Upper limits on the total cosmic-ray luminosity of individual sources
- Ultra-High-Energy Cosmic Rays from Low-Luminosity Active Galactic Nuclei