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pro vyhledávání: '"Berezhiani, V."'
For degenerate astrophysical electron-positron plasmas we have considered dynamics of electromagnetic beams carrying angular momentum. It is found for arbitrary level of degeneracy such a beam having the power exceeding a certain critical value break
Externí odkaz:
http://arxiv.org/abs/2111.00589
Autor:
Osmanov, Z. N., Berezhiani, V. I.
In the present manuscript we consider the possibility of SETI by the small size (with diameters less than 1 m) optical telescopes. Calculations are performed for typical parameters of the mentioned type of telescopes. In particular, we show that the
Externí odkaz:
http://arxiv.org/abs/2109.11005
In the present paper we consider the nonlinear interaction of high frequency intense electromagnetic (EM) beam with degenerate electron plasmas. In a slowly varying envelop approximation the beam dynamics is described by the couple of nonlinear equat
Externí odkaz:
http://arxiv.org/abs/2104.03595
Autor:
Berezhiani, V. I., Osmanov, Z.
Propagation and dynamics of electromagnetic vortex solitons have been studied in the electron positron ion plasmas of super-Eddington active galactic nuclei (AGN). Existence and stability of such structures is demonstrated for highly transparent AGN
Externí odkaz:
http://arxiv.org/abs/2008.01672
In this paper we study the generation of high energy emission from normal pulsars. For this purpose we consider the particles accelerated in the outer magnetosphere sliding along the closed magnetic field lines. It has been shown that in due course o
Externí odkaz:
http://arxiv.org/abs/2003.12898
Nonlinear wave--coupling is studied in a multi-species degenerate astrophysical plasma consisting of two electron species (at different temperatures): a highly degenerate main component plus a smaller classical relativistic flow immersed in a static
Externí odkaz:
http://arxiv.org/abs/1912.13197
Autor:
Osmanov, Z., Berezhiani, V. I.
In the framework of the approach of Dyson megastructures, by assuming that a super-advanced civilization exists and is capable of constructing a ring-like megastructure around their host star, we have considered the observational signatures of cold (
Externí odkaz:
http://arxiv.org/abs/1909.08851
It is shown that a small contamination of a relativistically hot electron component can induce a new scale (for structure formation) to a system consisting of an ion-degenerate electron plasma. Mathematically expression of this additional scale lengt
Externí odkaz:
http://arxiv.org/abs/1906.11044
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The filamentation instability of the electromagnetic (EM) beam in an underdense plasma with high level of degeneracy is examined by means of the momentum equation, continuity equation and Maxwell's equations. It has been demonstrated that the instabi
Externí odkaz:
http://arxiv.org/abs/1811.03610