Fluctuations of the electric and magnetic field are studied in collisionless shock formed during plasma flow over a terrella. Spectra of magnetic fluctuations in the laboratory experiment and in space appear to coincide in dimensionless units. Electric field fluctuations appear at the shock wave formation, with frequencies in the hybrid Larmor frequency range. The appearance of noise is preceeded by the formation of positive potential maxima. The reflection of ions from the potential maxima must lead to two stream motion in a plasma with magnetized electrons. Such motion is unstable and excites longitudinal waves. Dissipation of energy of the directional motion after damping of electrical noises apparently occurs only through microfluctuations of the magnetic field.
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Auer, P. L., Kilb, R. W., and Crevier, W. F.: 1971,J. Geophys. Res. 76, 2927.
Biskamp, D. and Welter, H.: 1972,Phys. Rev. Letters 28, 410.
De Silva, A. W., Dove, W. F., Spalding, I. J. and Goldenbaum, G. C.: 1971,Phys. Fluids 14, 42.
Dubinin, E. M., Managadze, G. G., and Podgorny, I. M.: 1969,Proc. Intern. Symposium on Space and Cosmic Rays, Leningrad, p. 244.
Forslund, D. W. and Freidberg, I. P.: 1971,Phys. Rev. Letters 27, 18, 1189.
Managadze, G. G. and Podgorny, I. M.: 1968a,Doclady AS U.S.S.R. 180, 1333;Sov. Phys. Docl. 13, 593 (1968).
Managadze, G. G. and Podgorny, I. M.: 1968b,Geomagnetizm i Aeronomia 6, 612.
Olson, J. V., Holzer, R. E., and Smith, E. I.: 1969,J. Geophys. Res. 74, 4601.
Papadopoulos, K.: 1971,J. Geophys. Res. 76, 3806.
Papadopoulos, K., Wagner, C. E. and Haber, I.: 1971,Phys. Rev. Letters 27, 982.
Patrick, R. M. and Pugh, E. R.: 1969,Phys. Fluids 12, 366.
Podgorny, I. M.: 1971,Topics in Plasma Diagnostics, Plenum Press, N.Y.
Podgorny, I. M. and Dubinin, E. M.: 1972,Cosmic Electrodyn. 2, 453.
Podgorny, I. M. and Sagdeev, R. Z.: 1970,Soviet Phys. Usp. 12, 445.
Podgorny, I. M. and Sumarokov, V. N.: 1960,J. Nucl. Energy C., Plasma Phys. 1, 236.
Podgorny, I. M., Dubinin, E. M., and Managadze, G. G.: 1971,Cosmicheskiye Issledovanija 9, 91.
Robson, A. E.: 1969, Proc. of a Study Group held at ESRIN, Frascati.
Smith, E. J., Holzer, R. E., McLeod, M. G. and Russell, C. T.: 1967,J. Geophys. Res. 72, 4803.
Stringer, T. E.: 1964,J. Nuclear Energy Pt. C 6, 267.
Tidman, D. A. and Krall, N. A.: 1971,Shock Waves in Collisionless Plasmas, John Wiley, New-York.
Willis, D. M.: 1971,Rev. Geophys. Space. Phys. 9, 953.
Wong, A. Y. and Means, R. W.: 1971,Phys. Rev. Letters 27, 15, 973.
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Podgorny, I.M., Andrianov, Y.V. & Dubinin, E.M. Electric field microfluctuations on the shock front in the model experiments. Astrophys Space Sci 24, 245–257 (1973). https://doi.org/10.1007/BF00648688
- Magnetic Field
- Shock Wave
- Longitudinal Wave
- Laboratory Experiment
- Directional Motion