Abstract
We consider the magnetohydrodynamic (MHD) interactions of solar coronal fast shock waves of flare and/or nonflare origin with the boundaries of coronal streamers and coronal holes. Boundaries are treated as MHD tangential discontinuities (TD). Different parameters of the observed corona are used in the investigation. The general case of the oblique interaction is studied.
It is shown that a solar fast shock wave must be refracted usually as a fast shock wave inside the coronal streamer. For the special case of the velocity shear across TD, a slow shock wave is generated. On the contrary, the shock wave refracted inside the coronal hole is indeed a slow shock wave.
The significance of different effects due to the interaction of fast and slow shock waves on the coronal magnetic field is noticed, especially at the time of a coronal mass ejection (CME). It is also shown, that an oblique fast MHD coronal shock wave may trigger an instability at the boundary of a streamer considered as a TD. It might have a relation with the observed process of abrupt disappearance of the streamer's boundary in the solar corona.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Axford, W. L: 1985, Solar Phys. 100, 575.
Axford, W. I. and McKenzie, J. F.: 1992, Solar Wind Seven. Proc. of 3 COSPAR Colloq., p. 1.
Barmin, A. A., Pushkar, E. A., and Grib, S. A.: 1991, Geomagn. Aeron. 31, 522.
Barnes, A.: 1966, Phys. Fluids 6, 1483.
Barnes, A.: 1968, Astrophys. J. 154, 751.
Bazer, J. and Ericson, W. B.: 1961, Proceedings of the Symposium on Electromagnetics and Fluid Dynamics of Gaseous Plasma, Polytech. Press, New York, p. 387.
Burlaga, L. F. and Chao, J. K.: 1971, J. Geophys. Res. 76, 7516.
Chao, J. K. and Olbert, S.: 1970, J. Geophys. Res. 75, 6394.
Dryer, M., Detman, T. R., Wu, S. T., and Han, M.: 1989, Adv. Space Res. 9 (4), 75.
Feldman, W. C., Schwartz, S. J., Bame, S. J. et al.: 1984, Geophys. Res. Letters 11, 599.
Grib, S. A. and Sazonova, V. N.: 1991, Soln. Dann. No. 11, 92.
Grib, S. A., Brunelli, B. E., Dryer, M., and Shen, W. W.: 1979, J. Geophys. Res. 84, 5907.
Hundhausen, A. J., Holzer, T. E., and Low, B. C.: 1987, J. Geophys. Res. 92, 11173.
Kahler, S. W. and Hundhausen, A. J.: 1992, J. Geophys. Res. 97, 1619.
Koutchmy, S.: 1971, Astron. Astrophys. 13, 79.
Koutchmy, S.: 1977, Solar Phys. 51, 399.
Koutchmy, S.: 1988, Proc. of the Ninth Sacramento Peak Summer Workshop on Solar and Stellar Coronal Structure and Dynamics, Sunspot, New Mexico, 17–21 August, 1987, p. 208.
Koutchmy, S., Fagot J., Dzubenko, N. I. et al.: 1973, Nature 246, 414.
Kulikovskiy, A. G. and Lubimov, G. A.: 1962, Magnetic Hydrodynamics, Moscow.
Landau, L. and Lifshitz, E.: 1960, Electrodynamics of Continuous Media, Addison-Wesley, Inc., U.S.A., p. 228.
Neubauer, F. M.: 1975, J. Geophys. Res. 80, 1213.
Neubauer, F. M.: 1976, J. Geophys. Res. 81, 2248.
Neugebauer, M., Clay, D. R., Goldstein, B. E., Tsurutani B. T., and Zwickl, R. D.: 1984, J. Geophys. Res. 89, 5395.
Northrop, T. G. and Birmingham, T. J.: 1970, Solar Phys. 14, 226.
Parker, E. N.: 1986, Astrophys. J. 318, 876.
Parker, E. N.: 1990, Geophys. Res. Letters 17, 2055.
Parker, E. N.: 1992, Solar Wind Seven. Proc. of 3 COSPAR Colloq., p. 79.
Priest, E. R.: 1982, Solar Magnetohydrodynamics, D. Reidel Publ. Co., Dordrecht, Holland, p. 469.
Pushkar, E. A.: 1979, Izv. AN SSSR MZG Mechanics of Fluids and Gases 3, 111.
Richter, A. K. and Lutrell, A. H.: 1987, J. Geophys. Res. 92, 1365.
Richter, A. K.: 1991, Phys. Chem. Solar Space Solar Phys. 21, 45.
Smith, E. J., Slavin, J. A., Tsurutani, B.T. et al.: 1984, Geophys. Res. Letters 11, 1054.
Wang, A. H., Wu, S. T., Suess, S. T., and Poletto, G.: 1993, Solar Phys. 147, 55.
Whang, Y. C.: 1986, EOSAGU 67, 327.
Whang, Y. C.: 1991, Astrophys. J. 377, 255.
Whitehead, J.: 1971, J. Geophys. Res. 76, 3127.
Author information
Authors and Affiliations
Additional information
On leave from the Academy of Sciences, Central Astronomical Observatory Pulkovo, 196140, St. Petersburg, Russia.
Rights and permissions
About this article
Cite this article
Grib, S.A., Koutchmy, S. & Sazonova, V.N. MHD shock interactions in coronal structures. Sol Phys 169, 151–166 (1996). https://doi.org/10.1007/BF00153838
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00153838