Abstract
The shadow events in the dynamic spectra of Jovian decametric emission are explained as the result of interaction between electron bunches responsible for S and L emissions. The relevant dispersion relation is derived for the fast extraordinary mode in the cold magnetospheric plasma in the presence of S and L electron bunches. The growth rate of the synchrotron maser instability is studied in the presence and absence of S-electrons. It is shown that the synchrotron maser instability responsible for L-emission can be temporarily quenched by the invasion of S-electrons, thereby stopping the L-emission. The theory accounts for various observed features of the shadow events.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Akhiezer, A. L., Akhiezer, I. A., Polovin, R. V., Sitenko, A. G., and Stepanov, K. N.: 1967, in Collective Oscillations in a Plasma, Pergamon Press, Oxford.
Baldwin, E. D., Bernstein, I-B., and Weenik, M. P. H.: 1969, in Advances in Plasma Physics, Vol. 3, John Wiley, New York.
Benz, A. O. and Kuijpers, J.: 1976, Solar Phys. 46, 275.
Desch, M. D., Flagg, R. S., and May, J.: 1978, Nature 272, 38.
Ellis, G. R. A.: 1973, Nature 241, 387.
Flagg, R. S., Krausche, D. S., and Lebo, G. R.: 1976, Icarus 29, 477.
Galeev, A. A. and Krasnoselskikh, V. V.: 1979, Sov. Astron. Lett. 5, 257.
Ginzburg, V. L.: 1970, The Propagation of Electromagnetic Waves in Plasmas, Pergamon Press.
Gordon, M. A.: 1966, Ph.D. Thesis, University of Colorado.
Groth, M. J. and Dowden, R. L.: 1975, Nature 255, 382.
Gurnett, D. A. and Goertz, C. K.: 1981, J. Geophys. Res. 86, 717.
Hewitt, R. G., Melrose, D. B., and Ronnmark, K. G.: 1982, Aust. J. Phys. 35, 447.
Hirshfild, J. L. and Bekefi, G.: 1963, Nature 198, 20.
Krausche, D. S., Flagg, R. S., Lebo, G. R., and Smith, A. G.: 1976, Icarus 29, 463.
Leblanc, Y., Aubier, M. G., Rosolen, C., Genova, F., and de la Noe, J.: 1980, Astron. Astrophys. 86, 349.
Le Queau, D., Pellat, R., and Roux, A.: 1984, Phys. Fluids 27, 247.
Melrose, D. B.: 1979, Astrophys. J. 230, 621.
Melrose, D. B.: 1982, in A. O. Benz and P. Zlobec (eds.), Proceedings of the 4th CESRA Workshop on Solar Noise Storms, Trieste, p. 182.
Pritchett, P. L.: 1984, J. Geophys. Res. 89, 8957.
Riihimaa, J. J. and Warwick, J. W.: 1968, Astrophys. Lett. 2, 185.
Riihimaa, J. J., Carr, T. D., Flagg, R. S., Greenman, W. B., Gombola, P. P., Lebo, G. R., and Levy, J. A.: 1981, Icarus 48, 298.
Sharma, R. A., Vlahos, L., and Papadopoulos, K.: 1982, Astron. Astrophys. 112, 377.
Smith, R. A.: 1976, in T. Gehrels (ed.), Jupiter, the Giant Planet, University of Arizone Press, Tucson.
Staelin, D. H. and Rosenkranz, P. W.: 1983, M.L.T. Preprint.
Stix, T.: 1962, The Theory of Plasma Waves, McGraw-Hill, New York.
Wu, C. S. and Freund, H. P.: 1977, Astrophys. J. 213, 575.
Wu, C. S. and Freund, H. P.: 1984, Radio Science 19, 519.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Gopalswamy, N. A theory of Jovian shadow bursts. Earth Moon Planet 35, 93–115 (1986). https://doi.org/10.1007/BF00117270
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00117270