6 papers
Intergalactic electromagnetic cascades in the magnetized Universe as a tool of astroparticle physics
Timur Dzhatdoev, Emil Khalikov, Anna Kircheva +2
We review the physics of intergalactic electromagnetic cascades in the presence of the extragalactic magnetic field (EGMF). Various regimes of intergalactic electromagnetic cascade…
Intergalactic electromagnetic cascade component of observable blazar emission
T. A. Dzhatdoev, E. V. Khalikov, A. P. Kircheva +1
Secondary γ-rays from intergalactic cascades may contribute to observable spectra of blazars, also modifying observable angular and temporal distributions. In this paper we briefly…
The VHE anomaly in blazar spectra and related phenomena
T. Dzhatdoev, E. Khalikov, A. Kircheva +1
Most of the recent research on extragalactic -ray propagation focused on the study of the absorption process ("absorption-only model"). Starting from…
Testing models of extragalactic -ray propagation using observations of extreme blazars in GeV and TeV energy ranges
T. A. Dzhatdoev, E. V. Khalikov, A. P. Kircheva +1
We briefly review contemporary extragalactic γ-ray propagation models. It is shown that the Extragalactic Magnetic Field (EGMF) strength and structure are poorly known. Strict lowe…
Indications for a cascade component in γ-ray blazar spectra
S. Baklagin, T. Dzhatdoev, E. Khalikov +2
We present a very brief overview of some recent gamma-ray observations of selected blazars to reveal an indication for a considerable or even dominant contribution of secondary gam…
Electromagnetic cascade masquerade: a way to mimic --axion-like particle mixing effects in blazar spectra
T. A. Dzhatdoev, E. V. Khalikov, A. P. Kircheva +1
Context. Most of the studies on extragalactic γ-ray propagation performed up to now only accounted for primary gamma-ray absorption and adiabatic losses ("absorption-only model").…