Tomaschitz, R. (2006). Tachyonic cyclotron radiation, European Physical Journal C 45, 493-511, DOI: 10.1140/epjc/s2005-02408-5
Abstract (SpringerLink, EDP Sciences, SAO/NASA ADS)
We study superluminal cyclotron emission by electrons and muons in semiclassical orbits. The tachyonic line spectra of hydrogenic ions such as H, {}^{56}Fe^{25+}, and {}^{238} U^{91+}, as well as their muonic counterparts {p}μ^-, {}^{56}Fe^{26+}μ^- and {}^{238} U^{92+}μ^- are calculated, in particular the tachyonic power transversally and longitudinally radiated, the total intensity, and the power radiated in the individual harmonics. We also investigate tachyonic continuum radiation from electrons and protons cycling in the surface and light cylinder fields of γ-ray and millisecond pulsars, such as the Crab pulsar, PSR B1509-58, and PSR J0218+4232. The superluminal spectral densities generated by non-relativistic, mildly relativistic and ultra-relativistic source particles are derived. We study the parameters determining the global shape of the transversal and longitudinal densities and the energy scales of the broadband spectrum. The observed cutoff frequency in the γ-ray band of the pulsars is used to infer the upper edge of the orbital energy, and we conclude that electrons and nuclei cycling in the surface fields can reach energies beyond the "ankle" of the cosmic ray spectrum. This suggests γ-ray pulsars as sources of ultra-high energy cosmic rays.
PACS: 41.60.Ap, 11.10.Lm, 36.10.Dr, 98.70.Sa
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Tachyonic cyclotron radiation |
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Authors: |
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Tomaschitz, R. |
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AA(Department of Physics, Hiroshima University) |
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The European Physical Journal C, Volume 45, Issue 2, pp.493-511 (EPJC Homepage) |
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Publication Date: |
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02/2006 |
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description: Roman Tomaschitz (2006) Tachyonic cyclotron radiation, European Physical Journal C 45, 493.
Keywords: superluminal cyclotron emission by electrons and muons, tachyonic line spectra of hydrogenic ions and muonic atoms, tachyonic continuum radiation from electrons and protons in the surface magnetic fields of γ-ray pulsars, gyration in the light cylinder fields of rotation-powered neutron stars, superluminal spectral densities, cockscomb distributions, Proca equation with negative mass-square, polarization of tachyons, tachyonic power transversally and longitudinally radiated, tachyonic luminosity, ultra-high energy cosmic rays, gamma-ray pulsars
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