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Physical conditions in potential accelerators of ultrahigh energy cosmic rays: updated Hillas plot and radiation-loss constraints

 a,  b
a Lomonosov Moscow State University, Vorobevy Gory, Moscow, 119991, Russian Federation
b Institute for Nuclear Research, Russian Academy of Sciences, prosp. 60-letiya Oktyabrya 7a, Moscow, 117312, Russian Federation

We review basic constraints on the acceleration of ultra-high-energy (UHE) cosmic rays (CRs) in astrophysical sources, namely, the geometrical (Hillas) criterion and the restrictions from radiation losses in different acceleration regimes. Using the latest available astrophysical data, we redraw the Hillas plot and find potential UHECR accelerators. For the acceleration in central engines of active galactic nuclei, we constrain the maximal UHECR energy for a given black hole mass. Among active galaxies, only the most powerful ones, radio galaxies and blazars, are able to accelerate protons to UHE, though acceleration of heavier nuclei is possible in much more abundant lower-power Seyfert galaxies.

Fulltext is available at IOP
PACS: 98.54.−h, 98.62.En, 98.70.Sa (all)
DOI: 10.3367/UFNe.0180.201007c.0723
Citation: Ptitsyna K V, Troitsky S V "Physical conditions in potential accelerators of ultrahigh energy cosmic rays: updated Hillas plot and radiation-loss constraints" Phys. Usp. 53 691–701 (2010)
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Оригинал: Птицына К В, Троицкий С В «Физические условия в потенциальных ускорителях космических лучей сверхвысоких энергий: обновлённая диаграмма Хилласа и ограничения из потерь на излучение» УФН 180 723–734 (2010); DOI: 10.3367/UFNr.0180.201007c.0723

References (88) Cited by (45) Similar articles (13) ↓

  1. V.L. Ginzburg “The origin of cosmic rays (Forty years later)36 (7) 587–591 (1993)
  2. S.V. Troitsky “Unsolved problems in particle physics55 72–95 (2012)
  3. V.L. Ginzburg “Cosmic rays on Earth and in the Universe4 553–575 (1962)
  4. V.I. Dokuchaev, Yu.N. Eroshenko “Physical laboratory at the center of the Galaxy58 772–784 (2015)
  5. A.D. Chernin “Dark energy and universal antigravitation51 253–282 (2008)
  6. V.N. Lukash, V.A. Rubakov “Dark energy: myths and reality51 283–289 (2008)
  7. D.A. Kirzhnits “Extremal states of matter (ultrahigh pressures and temperatures)14 512–523 (1972)
  8. M.V. Sazhin “Anisotropy and polarization of cosmic microwave background: state of the art47 187–194 (2004)
  9. I.D. Novikov, V.P. Frolov “Black holes in the Universe44 291–305 (2001)
  10. V.I. Dokuchaev, N.O. Nazarova “Silhouettes of invisible black holes63 583–600 (2020)
  11. L.M. Ozernoi “Energy sources in quasars and nuclei of galaxies19 863–868 (1976)
  12. O.F. Prilutskii, I.L. Rozental’, V.V. Usov “Intense bursts of cosmic gamma radiation18 548–558 (1975)
  13. E.L. Feinberg “The problem of quarks in cosmic rays10 256–261 (1967)

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