Open AccessCollapsible and Spiky Wave for Dust Acoustic Waves in Dusty Plasmas
Author(s) -
Ranjit Kumar Kalita,
Jnanjyoti Sarma
Publication year - 2019
Publication title -
mathematical journal of interdisciplinary sciences
Language(s) - English
Resource type - Journals
eISSN - 2278-957X
pISSN - 2278-9561
DOI - 10.15415/mjis.2019.72011
Subject(s) - mach number , amplitude , physics , plasma , explosive material , transformation (genetics) , dusty plasma , range (aeronautics) , acoustic wave , electron , energy (signal processing) , shock wave , computational physics , plasma parameters , mechanics , acoustics , optics , quantum mechanics , materials science , chemistry , biochemistry , organic chemistry , composite material , gene
In multicomponent dusty plasma, the Sagdeev Potential (SP) approach is employed to formulate the Energy Equation for arbitrary amplitude dust acoustic waves (DAWs), where an amount of electrons is trapped in potential well. The dependence of amplitude and width of the solitons of Sagdeev Potential on plasma parameters is widely discussed. The range of Mach number has determined for solitary waves (SWs) with the help of critical Mach number. The solution of the Energy Equation obtained, has been discussed by expanding the expression for SP in the higher terms of φ . The different solutions of Energy Equation give us SWs, breakable waves, collapsible waves and SWs with spiky and explosive nature. The role of temperature ratio on the transformation of SWs to collapsible waves is discussed. With the help of standard values of plasma parameters relevant to such plasma environment, the results so obtained, are discussed. These results may help us to explain the nature of SWs in different astrophysical situations.