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Physical Science International Journal

Physical Science International Journal, ISSN: 2348-0130,Vol.: 13, Issue.: 2


Review Article


Jeans Instability of Self-gravitating Porous Medium under the Effect of Electron Plasma Frequency and Coriolis Force



A. Kumar1, D. L. Sutar2* and R. K. Pensia3  

1Faculty of Science, Pacific Academy of Higher Education and Research University, Udaipur (Raj.) 313003, India.

2Mewar University, Gangrar, Chittorgarh (Raj.) 312901, India.

3Department of Physics, Govt. P.G. Girls College, Neemuch (M.P.) 458441, India.




This paper deals with the theoretical investigation of the combined effect of electron plasma frequency and Coriolis force on the hydromagnetic waves through a self gravitating porous medium in the presence of fine dust particles subjected to a transverse uniform magnetic field. A general dispersion relation is obtained using the normal mode analysis with the help of relevant linearized perturbation equation of motion. This dispersion relation is reduced for longitudinal and transverse modes of propagation. Dispersion relations for two modes are further reduced for the axis of rotation parallel and perpendicular to the direction of the magnetic field. We find that Jean’s criterion of instability remains valid but the expression of the critical Jean’s wave number is modified. The numerical analysis is performed to show the effect of thermal conductivity, relaxation time, rotation, Stokes drag and porosity of the medium on the growth rate of instability.


Keywords :

Electron plasma frequency; suspended particles; magnetic field; thermal conductivity; porosity; permeability.


Full Article - PDF    Page 1-12    Article Metrics


DOI : 10.9734/PSIJ/2017/29315

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