The influence of negatively charged heavy ions on Alfven waves in a cometary environment
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 0, Vol 4, Issue 3
Abstract
Alfven waves are important in a wide variety of areas like astrophysical, space and laboratory plasmas. In cometary environments, waves in the hydromagnetic range of frequencies are excited predominantly by heavy ions. We, therefore, study the stability of Alfven waves in a plasma of hydrogen ions, positively and negatively charged oxygen ions and electrons. Each species has been modeled by drifting distributions in the direction parallel to the magnetic field; in the perpendicular direction the distribution is simulated with a loss cone type distribution obtained through the subtraction of two Maxwellian distributions with different temperatures. We find that for frequencies ( andbeing respectively the Doppler shifted and hydrogen ion gyro-frequencies ), the peak growth rate increases with increasing negatively charged oxygen ion densities. On the other hand, for frequencies (being the oxygen ion gyro-frequencies) the region of wave growth increases with increasing negatively charged oxygen ion densities.
Authors and Affiliations
Venugopal Chandu, Sreekala G, Sijo Sebastian, Manesh Michael, Neethu Theresa Willington, Noble P Abraham, G Renuka
Keywords
Related Articles
- EP ID EP653537
- DOI 10.24297/jap.v4i3.2017
- Views 98
- Downloads 0
Chitosan Molecular Weight Effects on The Synthesis of Gold Nanoparticles and Catalytic Degradation of Environmental Pollutants
a microwave as a heating source. Since, Chitosan acts as a reducing and stabilizing agent. The as-synthesized Au NPs were characterized by transmission electron microscopy (TEM) images and selected area electron diffract...
The Deformation Structure of the Nuclei 32S and 36Ar
We applied two different approaches to investigate the deformation structures of the two nuclei S32 and Ar36 . In the first approach, we considered these nuclei as being deformed and have axes of symmetry. Accordingly, w...
Physics from Axioms
We introduce a definition of Time and Photons from four Axioms. Basically you take a 4-dimensional manifold, transform them into two superimposed Riemann Spheres and isolate a circle (call this Pp) in one of the spheres....
Low-Inductive Extended Z-Discharge As a Manyrange Source of Radiations
The present paper summarizes the results of studying of nanosecond low-inductive extended discharge as source of electromagnetic radiations and analyzes the works of other research groups that can throw upon additional l...
Synthesis, Characterization and Phase Transition Studies on Some N-(4-Butyloxy Benzylidene)-4-Alkoxy Anilines, 4O.Om Compounds - A Dilatometric Study
Dilatometric studies are carried out on the synthesized N-(4-butyloxy benzylidene)-4-alkoxy anilines, 4O.Om compounds with the m = 3 to 7 and 9. Characterization of these compounds is done using the polarizing microscope...