Abstract
It is pointed out that the solar wind interaction with dusty magnetospheres of the planets can give rise to purely growing instabilities as well as nonlinear electric field structures. Linear dispersion relation of the low frequency electrostatic ion-acoustic wave (IAW) is modified in the presence of stationary dust and its frequency becomes larger than its frequency in usual electron ion plasma even if ion temperature is equal to the electron temperature. This dust-ion-acoustic wave (DIAW) either becomes a purely growing electrostatic instability or turns out to be the modified dust-ion-acoustic wave (mDIAW) depending upon the magnitude of shear flow scale length and its direction. Growth rate of shear flow-driven electrostatic instability in a plasma having negatively charged stationary dust is larger than the usual D’Angelo instability of electron-ion plasma. It is shown that shear modified dust ion acoustic wave (mDIAW) produces electrostatic solitons in the nonlinear regime. The fluid theory predicts the existence of electrostatic solitons in the dusty plasmas in those regions where the inhomogeneous solar wind flow is parallel to the planetary or cometary magnetic field lines. The amplitude and width of the solitary structure depends upon dust density and magnitude of shear in the flow. This is a general theoretical model which is applied to dusty plasma of Saturn’s F-ring for illustration.
Similar content being viewed by others
References
Aburdzhaniya, G.D., Mikhailovskii, A.B., Sharapov, S.E.: Plasma Phys. Control. Fusion 26, 603 (1984)
Barkan, A., D’Angelo, N., Merlino, R.L.: Planet. Space Sci. 44, 239 (1996)
Bharuthram, R., Shukla, P.K.: Planet. Space Sci. 40, 973 (1992)
D’Angelo, N.: Phys. Fluids 8, 1748 (1965)
Gavrishchaka, V.V., Ganguli, S.B., Ganguli, G.I.: Phys. Rev. Lett. 80, 728 (1998)
Goldston, R.J., Rutherford, P.H.: Introduction to Plasma Physics. IOP Publishing, Bristol (1995)
Ichimaru, S.: Basic Principles of Plasma Physics, a Statistical Approach. Benjamin, Reading (1973)
Karovska, M., Habbal, S.R.: Astrophys. J. 371, 371 (1991)
Kindel, J.M., Kennel, C.F.: J. Geophys. Res. 76, 3055 (1977)
Mamun, A.A., Shukla, P.K.: Phys. Scr. T98, 107 (2002a)
Mamun, A.A., Shukla, P.K.: Phys. Plasmas 9, 1468 (2002b)
Merlino, R.L., Barkan, A., Thompson, C., D’Angelo, N.: Phys. Plasmas 5, 1607 (1998)
Mushtaq, A., Saeed, R., Haque, Q.: Phys. Plasmas 18, 042305 (2011)
November, L.J., Koutchmy, S.: Astrophys. J. 466, 512 (1997)
Saleem, H., Vranjes, J., Poedts, S.: Phys. Plasmas 14, 072104 (2007)
Shukla, P.K., Mamun, A.A.: Introduction to Dusty Plasma Physics. IOP Publishing, Bristol (2002)
Shukla, P.K., Silin, V.P.: Phys. Scr. 45, 508 (1992)
Weiland, J.: Collective Modes in Inhomogeneous Plasma. IOP Publishing, Bristol (2000)
Woo, R.: Nature 379, 321 (1996)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Saleem, H., Ali, S. Solar wind interaction with dusty plasmas produces instabilities and solitary structures. Astrophys Space Sci 362, 238 (2017). https://doi.org/10.1007/s10509-017-3217-6
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s10509-017-3217-6