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Timing and spectral properties of the X-ray emission from the blazar 1ES 1426+428

Fidelis, V. V.; Yakubovskyi, D. A.; Voytkova, Yu. V.

Most of the extragalactic sources from which very-high-energy (VHE, E > 10¹¹ eV) gamma-ray fluxes have been detected belong to the category of high-energy peaked BL Lacertae objects (HBLs)—the sources in which the synchrotron radiation peaks in the UV or X-ray band. They often have higher X-ray luminosities than the VHE gamma-ray ene…