Deb Kumar Ghosh
Articles written in Pramana – Journal of Physics
Volume 80 Issue 4 April 2013 pp 665-676
Effect of superthermal electrons on dust-acoustic Gardner solitons in nonplanar geometry
Deb Kumar Ghosh Yday Narayan Ghosh Prasanta Chatterjee C S Wong
The properties of nonplanar (cylindrical and spherical) dust-acoustic solitary waves (DASWs) in an unmagnetized, collisionless three-component dusty plasma, whose constituents are negatively charged cold dust fluid, superthermal/non-Maxwellian electrons (represented by kappa distribution) and Boltzmann distributed ions, are investigated by deriving the modified Gardner (MG) equation. The well-known reductive perturbation method is employed to derive the MG equation. The basic features of nonplanar DA Gardner solitons (GSs) are discussed. It is seen that the properties of nonplanar DAGSs (positive and negative) significantly differ as the value of spectral index 𝜅 changes.
Volume 81 Issue 3 September 2013 pp 491-501
Nonplanar ion-acoustic shocks in electron–positron–ion plasmas: Effect of superthermal electrons
Deb Kumar Ghosh Prasantha Chatterjee Pankaj Kumar Mandal Biswajit Sahu
Ion-acoustic shock waves (
Volume 81 Issue 4 October 2013 pp 631-640 Research Articles
Uday Narayan Ghosh Prasantha Chatterjee Deb Kumar Ghosh
Interaction of nonplanar ion-acoustic solitary waves is an important source of information for studying the nature and characteristics of ion-acoustic solitary waves (
Volume 96, 2022
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