On the effect of a tangential discontinuity on ions specularly reflected at an oblique shock

作者: D. Burgess

DOI: 10.1029/JA094IA01P00472

关键词:

摘要: In seeking to explain the events observed close Earth's bow shock known as hot, diamagnetic cavities (HDC), or active current sheets (ACS), attention has focused on microphysics of interaction a magnetic field directional discontinuity and collisionless, supercritical shock. Here we investigate case tangential (TD) convecting into at some arbitrary angle. As first stage adopt an approach in which test particles represent ions specularly reflected front. Widely different behavior is possible depending sense ion gyration relative TD. Particles can be injected plane TD so that they travel upstream trapped This implies ACS events, presumed result solar wind with large density component, are detached from For other geometries, interact but stay shock, implying modifications The deprive limited spatial region downstream reflected-gyrating population (necessary for quasi-perpendicular steady), anticipate where will not equilibrium, consequently strong reflection may occur. detailed such situation must investigated self-consistent simulations.

参考文章(18)
M. M. Leroy, D. Winske, Backstreaming ions from oblique earth bow shocks Annales Geophysicae. ,vol. 1, pp. 527- 536 ,(1983)
M. F. Thomsen, Upstream suprathermal ions Collisionless Shocks in the Heliosphere: Reviews of Current Research. ,vol. 35, pp. 253- 270 ,(1985) , 10.1029/GM035P0253
J. T. Gosling, A. E. Robson, Ion reflection, gyration, and dissipation at supercritical shocks Collisionless Shocks in the Heliosphere: Reviews of Current Research. ,vol. 35, pp. 141- 152 ,(1985) , 10.1029/GM035P0141
M. M. Leroy, D. Winske, C. C. Goodrich, C. S. Wu, K. Papadopoulos, The structure of perpendicular bow shocks Journal of Geophysical Research: Space Physics. ,vol. 87, pp. 5081- 5094 ,(1982) , 10.1029/JA087IA07P05081
V. A. Thomas, Stephen H. Brecht, Evolution of diamagnetic cavities in the solar wind Journal of Geophysical Research. ,vol. 93, pp. 11341- 11353 ,(1988) , 10.1029/JA093IA10P11341
M. F. Thomsen, J. T. Gosling, S. J. Bame, K. B. Quest, C. T. Russell, S. A. Fuselier, On the origin of hot diamagnetic cavities near the Earth's bow shock Journal of Geophysical Research. ,vol. 93, pp. 11311- 11325 ,(1988) , 10.1029/JA093IA10P11311
G. Paschmann, G. Haerendel, N. Sckopke, E. Möbius, H. Lühr, C. W. Carlson, Three-dimensional plasma structures with anomalous flow directions near the Earth's bow shock Journal of Geophysical Research. ,vol. 93, pp. 11279- 11294 ,(1988) , 10.1029/JA093IA10P11279
M. F. Thomsen, J. T. Gosling, S. A. Fuselier, S. J. Bame, C. T. Russell, Hot, diamagnetic cavities upstream from the Earth's bow shock Journal of Geophysical Research. ,vol. 91, pp. 2961- 2973 ,(1986) , 10.1029/JA091IA03P02961
Steven J. Schwartz, Ramona L. Kessel, Cassandra C. Brown, Les J. C. Woolliscroft, Malcolm W. Dunlop, Charles J. Farrugia, David S. Hall, Active current sheets near the Earth's bow shock Journal of Geophysical Research. ,vol. 93, pp. 11295- 11310 ,(1988) , 10.1029/JA093IA10P11295