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Upper-hybrid wave-driven Alfvénic turbulence in magnetized dusty plasmas
Phys. Rev. E 83, 037401 – Published 18 March, 2011
DOI: https://doi.org/10.1103/PhysRevE.83.037401
Abstract
The nonlinear dynamics of coupled electrostatic upper-hybrid (UH) and Alfvén waves (AWs) is revisited in a magnetized electron-ion plasma with charged dust impurities. A pair of nonlinear equations that describe the interaction of UH wave envelopes (including the relativistic electron mass increase) and the density as well as the compressional magnetic field perturbations associated with the AWs are solved numerically to show that many coherent solitary patterns can be excited and saturated due to modulational instability of unstable UH waves. The evolution of these solitary patterns is also shown to appear in the states of spatiotemporal coherence, temporal as well as spatiotemporal chaos, due to collision and fusion among the patterns in stochastic motion. Furthermore, these spatiotemporal features are demonstrated by the analysis of wavelet power spectra. It is found that a redistribution of wave energy takes place to higher harmonic modes with small wavelengths, which, in turn, results in the onset of Alfvénic turbulence in dusty magnetoplasmas. Such a scenario can occur in the vicinity of Saturn’s magnetosphere as many electrostatic solitary structures have been observed there by the Cassini spacecraft.
Article Text
References (26)
- P. K. Shukla and L. Stenflo, J. Plasma Phys. 73, 3 (2007).
- P. K. Shukla et al., Phys. Plasmas 10, 4572 (2003).
- B. Eliasson et al., Phys. Plasmas 10, 3539 (2003).
- A. N. Kauffman and L. Stenflo, Phys. Scr. 11, 269 (1975).
- P. K. Shukla et al., Phys. Rep. 138, 1 (1986).
- H. Pcseli, IEEE Trans. Plasma Sci. 13, 53 (1985).
- M. Porkolab et al., Phys. Fluids 19, 872 (1976).
- L. Stenflo et al., Planet. Space Sci. 40, 473 (1992).
- S. Goodman et al., Phys. Plasmas 1, 1765 (1994).
- P. J. Christiansen, V. K. Jain, and L. Stenflo, Phys. Rev. Lett. 46, 1333 (1981).
- L. Stenflo, Phys. Rev. Lett. 48, 1441 (1982).
- B. Grek and P. K. Shukla, Phys. Rev. Lett. 30, 836 (1973).
- A. P. Misra et al., Phys. Rev. E 79, 056401 (2009).
- S. Banerjee, A. P. Misra, P. K. Shukla, and L. Rondoni, Phys. Rev. E 81, 046405 (2010).
- A. P. Misra et al., Phys. Plasmas 17, 032307 (2010).
- X. T. He, C. Y. Zheng, and S. P. Zhu, Phys. Rev. E 66, 037201 (2002).
- F. B. Rizzato, G. I. deOliveira, and R. Erichsen, Phys. Rev. E 57, 2776 (1998).
- D. Eichler, Astrophys. J. 224, 1038 (1978).
- X. T. He and C. Y. Zheng, Phys. Rev. Lett. 74, 78 (1995).
- J. D. Williams et al., Geophys. Res. Lett. 33, L06103 (2006).
- J. S. Pickett et al., Ann. Geophys. 22, 2515 (2004).
- W. S. Kurth et al., Planet. Space Sci. 49, 345 (2001).
- N. N. Rao, J. Plasma Phys. 53, 317 (1995).
- G. Hangshan et al., Appl. Math. Mech. 19, 593 (1998).
- T. Katsouleas and J. M. Dawson, Phys. Rev. Lett. 51, 392 (1983).
- P. K. Shukla et al., Phys. Lett. A 313, 424 (2003).