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Dynamics of a magnetized gravitating dusty plasma

Published online by Cambridge University Press:  13 March 2009

L. Mahanta
Affiliation:
Centre of Plasma Physics, Saptaswahid Path, Dispur, Guwahati 781 006, India
B. J. Saikia
Affiliation:
Centre of Plasma Physics, Saptaswahid Path, Dispur, Guwahati 781 006, India
B. P. Pandey
Affiliation:
Centre of Plasma Physics, Saptaswahid Path, Dispur, Guwahati 781 006, India
S. Bujarbarua
Affiliation:
Centre of Plasma Physics, Saptaswahid Path, Dispur, Guwahati 781 006, India

Abstract

Linear stability of a magnetized dusty plasma is studied for the regime with ≈ 1 (where G is the universal gravitational constant, md is the grain mass and qd is the grain charge). We demonstrate that the magnetic force plays a stabilizing role and, together with electrostatic repulsion, counter gravitational condensation. The implications of this result for astrophysical situations are briefly discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1996

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References

REFERENCES

Alfvén, H. & Mendis, D. A. 1983 Adv. Space Res. 3, 95104.CrossRefGoogle Scholar
Barbash, S. & Lundin, R. 1994 On a possible dust plasma interaction at Mars. IEEE Trans. Plasma Sci. 22, 173178.CrossRefGoogle Scholar
Bhatt, J. R. & Pandey, B. P. 1994 Self consistent charge dynamics in collective modes in dusty plasma. Phys. Rev. E50, 39803983.Google Scholar
Binney, J. & Tremaine, S. 1988 Galactic Dynamics. Princeton University Press.Google Scholar
Draine, B. T. & Salpeter, E. E. 1979 On the physics of dust grains in hot gas. Astrophys. J. 231, 7781.CrossRefGoogle Scholar
Goertz, C. K. 1979 Dusty plasmas in the solar system. Rev. Geophys. 27, 271292.CrossRefGoogle Scholar
Hartquist, W., Havnes, O. & Morfill, G. 1992 The effects of dust on the dynamics of astronomical and space plasmas. Fund. Cosmic Phys. 15, 107142.Google Scholar
Menfis, D. A. & Rosenberg, M. 1994 Cosmic dusty plasma. Ann. Rev. Astron. Astrophys. 32, 449462.Google Scholar
Mukai, T. 1989 Proceedings of 1986 International School of Physics ‘Enrico Fermi’ (ed. Greenberg, J. M. & Aiellu, S.), p. 397. North-Holland, Amsterdam.Google Scholar
Pandey, B. P. & Dwivedi, C. B. 1995 Shearing instability of a dusty plasma in the presence of mass and charge variation. Pramana - J. Phys. 45, 255260.CrossRefGoogle Scholar
Pandey, B. P., Avinash, K. & Dwivedi, C. B. 1994 Jeans instability of a dusty plasma. Phys. Rev. E49, 55995606.Google Scholar
Pandey, B. P., Saikia, B. J. & Bujarbarua, S. 1995 Kinetic model for a gravitating dusty plasma. Physica Scripta, submitted.Google Scholar
Spitzer, L. 1978 Physical Processes in the Interstellar Medium. Wiley, New York.Google Scholar