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12 papers · 1 filter
Electromagnetic vortex beam dynamics in degenerate electron-positron astrophysical plasmas
V. I. Berezhiani, Z. N. Osmanov, S. V. Mikeladze
For degenerate astrophysical electron-positron plasmas we have considered dynamics of electromagnetic beams carrying angular momentum. It is found for arbitrary level of degeneracy…
Solitary structure formation and self-guiding of electromagnetic beam in highly degenerate electron plasma
V. I. Berezhiani, Z. N. Osmanov, S. M. Mahajan +1
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 approxi…
Nonlinear Coupling of Electromagnetic and Electron Acoustic Waves in Multi-Species Degenerate Astrophysical Plasma
N. L. Shatashvili, S. M. Mahajan, V. I. Berezhiani
Nonlinear wave--coupling is studied in a multi-species degenerate astrophysical plasma consisting of two electron species (at different temperatures): a highly degenerate main comp…
On the Relaxed States in the Mixture of Degenerate and Non-Degenerate Hot Plasmas of Astrophysical Objects
N. L. Shatashvili, S. M. Mahajan, V. I. Berezhiani
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 ele…
On the Filamentation Instability in Degenerate Relativistic Plasmas
R. M. Goshadze, V. I. Berezhiani, Z. Osmanov
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 equat…
The role of second viscosity in the velocity shear-induced heating mechanism
G. Tsereteli, Z. Osmanov
In the present paper we study the influence of second viscosity on non-modally induced heating mechanism. For this purpose we study the set of equations governing the hydrodynamic…