Ion-Acoustic Instabilities in a Multi-Ion Plasma
Joint Authors
Jayapal, R.
Abraham, Noble P.
Chandu, Venugopal
Anilkumar, C. P.
Sreekala, G.
Sebastian, Sijo
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-07-16
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
We have, in this paper, studied the stability of the ion-acoustic wave in a plasma composed of hydrogen, positively and negatively charged oxygen ions, and electrons, which approximates very well the plasma environment around a comet.
Modelling each cometary component (H+, O+, and O−) by a ring distribution, we find that ion-acoustic waves can be generated at frequencies comparable to the hydrogen ion plasma frequency.
The dispersion relation has been solved both analytically and numerically.
We find that the ratio of the ring speed (u⊥s) to the thermal spread (vts) modifies the dispersion characteristics of the ion-acoustic wave.
The contrasting behaviour of the phase velocity of the ion-acoustic wave in the presence of O− ions for u⊥s>vts (and vice versa) can be used to detect the presence of negatively charged oxygen ions and also their thermalization.
American Psychological Association (APA)
Abraham, Noble P.& Sebastian, Sijo& Sreekala, G.& Jayapal, R.& Anilkumar, C. P.& Chandu, Venugopal. 2013. Ion-Acoustic Instabilities in a Multi-Ion Plasma. Journal of Astrophysics،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-502212
Modern Language Association (MLA)
Abraham, Noble P.…[et al.]. Ion-Acoustic Instabilities in a Multi-Ion Plasma. Journal of Astrophysics No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-502212
American Medical Association (AMA)
Abraham, Noble P.& Sebastian, Sijo& Sreekala, G.& Jayapal, R.& Anilkumar, C. P.& Chandu, Venugopal. Ion-Acoustic Instabilities in a Multi-Ion Plasma. Journal of Astrophysics. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-502212
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-502212