10 research outputs found
Wave Localization and Density Bunching in Pair Ion Plasmas
By investigating the nonlinear propagation of high intensity electromagnetic
(EM) waves in a pair ion plasma, whose symmetry is broken via contamination by
a small fraction of high mass immobile ions, it is shown that this new and
interesting state of (laboratory created) matter is capable of supporting
structures that strongly localize and bunch the EM radiation with density
excess in the region of localization. Testing of this prediction in controlled
laboratory experiments can lend credence, inter alia, to conjectures on
structure formation (via the same mechanism) in the MEV era of the early
universe.Comment: 4 pages, Accepted for publication by Physics of Plasma
Magneto-Fluid Coupling - Eruptive Events in the Solar Corona
By modelling the coronal structures by "slowly" evolving Double-Beltrami
two-fluid equilibria (created by the interaction of the magnetic and velocity
fields), the conditions for catastrophic transformations of the original state
are derived. It is shown that, at the transition, much of the magnetic energy
of the original state is converted to the the flow kinetic energy.Comment: 4 pages of two-column text (Latex) plus 3 pages of figures, submitted
to The Astrophysical Journal Letter
Acceleration of Plasma Flows Due to Reverse Dynamo Mechanism
The "reverse-dynamo" mechanism - the amplification/generation of fast plasma
flows by micro scale (turbulent) magnetic fields via magneto-fluid coupling is
recognized and explored. It is shown that macro-scale magnetic fields and flows
are generated simultaneously and proportionately from micro scale fields and
flows. The stronger the micro-scale driver, the stronger are the macro-scale
products. Stellar and astrophysical applications are suggested.Comment: 16 pages including 3 figures. The Astrophys. J. (accepted);
additional material is given for clarification; terminology is change