TeV Signatures of Compact UHECR Accelerators
Clicks: 162
ID: 271182
2005
We numerically study particle acceleration by the electric field induced near the horizon of a rotating supermassive (M ∼ 109–1010 M ⊙) black hole embedded in the magnetic field B. We find that acceleration of protons to the energy E ∼ 1020 eV is possible only at extreme values of M and B. We also find that the acceleration is very inefficient and is accompanied by a broad-band MeV-TeV radiation whose total power exceeds the total power emitted in ultrahigh energy cosmic rays (UHECRs) at least by a factor of 1000. This implies that if O(10) nearby quasar remnants were sources of proton events with an energy E > 1020 eV, then each quasar remnant would, e.g., overshine the Crab Nebula by more than two orders of magnitude in the TeV energy band. Recent TeV observations exclude this possibility. A model in which O(100) sources are situated at 100–1000 Mpc is not ruled out and can be experimentally tested by present TeV γ-ray telescopes. Such a model can explain the observed UHECR flux at moderate energies E ≈ (4–5) 1019 eV.
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| Authors | A. Neronov,P. Tinyakov,I. Tkachev;A. Neronov;P. Tinyakov;I. Tkachev; |
| Journal | journal of experimental and theoretical physics |
| Year | 2005 |
| DOI | 10.1134/1.1926427 |
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