FIZIKA A 13 (2004) 1 , 33-52

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NON-LINEAR PROPAGATION OF WAVES IN A WARM MAGNETIZED PLASMA

K. K. GHOSHa, S. N. PAULb and S. CHATTOPADHYAYb
aDepartment of Mathematics, R.C.C. Institute of Information Technology, South Canal Road, Beliaghata, Kolkata 700015, India
bCentre for Science Education and Research, B/4, Shyamali Housing Estate, Salt Lake, Kolkata 700064, India
Email : sailenpaul@rediffmail.com

Received 3 August 2004;  Accepted 20 December 2004
Online 7 February 2005

Non-linear propagation of finite-amplitude ion-cyclotron waves, ion-acoustic waves and solitary waves in a collisionless magnetized plasma, consisting of warm ions and isothermal electrons, is theoretically studied. New analytical solutions have been obtained for the excitation of these waves in the plasma. The nature of solutions for these waves are represented graphically. It is seen that the normalized electric field can have arbitrary small as well as large values for the existence of ion-cyclotron waves which contradicts the results of other authors.

PACS numbers: 52.35.Mw, 52.35.Qz, 52.35.Sb
UDC 531.742.37, 531.755.2

Keywords: collisionless magnetized plasma, ion-cyclotron waves, ion-acoustic waves, solitary waves, non-linear propagation, analytical solutions waves

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