399 citations · 3.9k across the 74 of their papers we have counts for
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Sensitivity of cosmic-ray experiments to ultra-high-energy photons: reconstruction of the spectrum and limits on the superheavy dark matter
O. E. Kalashev, G. I. Rubtsov, S. V. Troitsky
We estimate the sensitivity of various experiments detecting ultra-high-energy cosmic rays to primary photons with energies above 10^19 eV. We demonstrate that the energy of a prim…
Gamma-ray halo around 3C 279: looking through the Sun on the 8th of October
Malcolm Fairbairn, Timur Rashba, Sergey Troitsky
We discuss how the solar occultations of bright sources of energetic gamma rays can be used to extract non-trivial physical and astrophysical information, including the angular siz…
Physical conditions in nearby active galaxies correlated with ultra-high-energy cosmic rays detected by the Pierre Auger Observatory
Sergey Gureev, Sergey Troitsky
We analyze the active-galaxy correlation reported in 2007 by the Pierre Auger Collaboration. The signal diminishes if the correlation-function approach (counting all "source-event"…
Spectral energy distributions and high-energy emission of BL Lac type objects
Sergey Troitsky
Based on identifications from the Veron and Quasars.org catalogs, we determine the optical-to-X-ray spectral indices for a sample of 201 BL Lac type objects (BLLs) and search for t…
Comment on "Correlation of the Highest-Energy Cosmic Rays with Nearby Extragalactic Objects"
Dmitry Gorbunov, Peter Tinyakov, Igor Tkachev +1
We argue that the data published by the Pierre Auger Collaboration (arXiv:0711.2256) disfavor at 99% confidence level their hypothesis that most of the highest-energy cosmic rays a…
Global anisotropy of arrival directions of ultra-high-energy cosmic rays: capabilities of space-based detectors
O. E. Kalashev, B. A. Khrenov, P. Klimov +2
Planned space-based ultra-high-energy cosmic-ray detectors (TUS, JEM-EUSO and S-EUSO) are best suited for searches of global anisotropies in the distribution of arrival directions…