Abstract
Conditions for the existence of dust acoustic solitary waves have been investigated on the nonlinear, unmagnetized homogeneous dusty plasma with variable dust charge and an arbitrary streaming ion beam. The Sagdeev’s pseudopotential has been derived in terms of u d , the dust fluid flow velocity. It is found that there exists a critical value of \(u_{d_{0}} \)(≠0), the value of u d at which (u d ′)2 = 0, beyond which the solitary waves cease to exist. This critical value of u d depends on other parameters like dust temperature, etc.
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Acknowledgments
This work is supported by the UGC, India under SAP(DRS) programme. One of the authors (PC) is grateful to University of Malaya for support.
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Chatterjee, P., Das, B. & Wong, C.S. Dust acoustic solitary waves in a dusty plasma with variable dust charge and an arbitrary streaming ion beam. Indian J Phys 86, 529–533 (2012). https://doi.org/10.1007/s12648-012-0074-6
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DOI: https://doi.org/10.1007/s12648-012-0074-6