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5 papers · 2 filters
Implications of a Nonthermal Origin of the Excess EUV Emission from the Coma Cluster of Galaxies
A. M. Atoyan, H. J. Voelk
The inverse Compton (IC) interpretation of the excess EUV emission, that was recently reported from several clusters of galaxies, suggests that the amount of relativistic electrons…
On the Stability of Stellar Systems with Double Massive Centre
K. M. Bekarian, A. A. Melkonian
The Ricci curvature criterion is used for the investigation of the relative instability of several configurations of N-body gravitating systems. It is shown, that the systems with…
Parametric S-tree Method and Its Generalizations
Karen M. Bekarian, Anahit A. Melkonian
A parametric approach is developed to the method of S-tree diagrams and its generalization for investigation of the hierarchical substructure of -body nonlinearly interacting sy…
Arrows of Time and the Anisotropic Properties of CMB
A. E. Allahverdyan, V. G. Gurzadyan
The relation between the thermodynamical and cosmological arrows of time is usually viewed in the context of the initial conditions of the Universe. It is a necessary but not suffi…
The Cosmic Ray Proton Spectrum determined with the Imaging Atmospheric Cherenkov-Technique
F. Aharonian
The HEGRA system of 4 Imaging Atmospheric Cherenkov Telescopes (IACTs) has been used to determine the flux and the spectrum of cosmic ray protons over a limited energy range around…