geomagnetic field is a one of the candidates for creation of anisotropy in azimuth distribution of extensive air showers over the entered cosmic rays to the atmosphere. here we present the question: is there any azimuth anisotropy flux in the upper level of the atmosphere due to the geomagnetic field over the entered cosmic-rays? the obtained answer is: yes. this investigation showed an agreeme...

We present a study of the expectations for very-high-energy (VHE) to ultra-high-energy (UHE) gamma-ray and neutrino emission from interacting cosmic rays in our Galaxy as well comparison latest results Galactic UHE diffuse emission. demonstrate importance properly accounting both mixed cosmic-ray composition absorption. adopt wounded-nucleon model nucleus interactions provide parameterisations ...

Abstract The emission mechanism for hard γ -ray spectra from supernova remnants (SNRs) is still a matter of debate. Recent multiwavelength observations the TeV source HESS J1912+101 show that it associated with an SNR age ∼100 kyr, making unlikely produce via leptonic processes. We analyzed Fermi and found extended spectrum. may represent peculiar stage evolution dominates acceleration cosmic r...

The production spectrum of high-energy muons as a function depth in the atmosphere is relevant for understanding properties event rates deep detectors. For given atmospheric profile, cascades heavy nuclei develop at higher altitude than proton showers, giving rise to larger separation depth. type primary cosmic ray, seasonal variations muon reflect fact that temperatures correspond lower densit...

Turbulent heating may play an important role in galaxy-cluster plasmas, but if turbulent heating is to balance radiative cooling in a quasi-steady state, some mechanism must regulate the turbulent velocity so that it is neither too large nor too small. This paper explores one possible regulating mechanism associated with an active galactic nucleus at cluster center. A steady-state model for the...

We present the main characteristics of cosmic ray population in the atmosphere and its variability (11-and 22-year solar cycle variations, solar protons originating from powerful solar flares, energetic electron precipitation during geomagnetic disturbances and Forbush decreases of cosmic rays). The experimental data were obtained from the long-term cosmic ray monitoring in the atmosphere from ...

Most Active Galactic Nuclei (AGN) are 'obscured', i.e. the nucleus is hiding behind a screen of absorbing material. The advantage of having the nucleus obscured is to make easier the observations of those emission components which originate in circumnuclear matter outside the absorbing regions, because in this case they are not outshined by the nuclear emission. This is particularly important i...

We present radio continuum polarimetry observations of the nearby edge-on galaxy NGC 253 which possesses a very bright radio halo. Using the vertical synchrotron emission profiles and the lifetimes of cosmic-ray electrons, we determined the cosmic-ray bulk speed as 300± 30 km s−1, indicating the presence of a galactic wind in this galaxy. The large-scale magnetic field was decomposed into a tor...