Results 191 to 200 of about 9,433 (226)

Interplanetary shock waves: Recent developments

Space Science Reviews, 1975
Direct and indirect observations of interplanetary shock waves have been extended to the study of (i) the shock structure itself; (ii) the disturbed solar wind in its wake; (iii) additional discontinuities such as reverse shocks and pistons; and (iv) the shock's kinematic behavior.
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Suprathermal ions upstream from interplanetary shocks

Journal of Geophysical Research: Space Physics, 1984
Suprathermal ions with energies between solar wind thermal energies and ∼29 keV are occasionally observed ahead of outward propagating interplanetary shocks with the Los Alamos/Garching fast plasma experiment on ISEE 1 and 2. Compared with suprathermal ion velocity distributions observed upstream from the earth's bow shock, the upstream interplanetary ...
J. T. Gosling, S. J. Bame, W. C. Feldman, G. Paschmann, N. Sckopke, C. T. Russell   +5 more
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Flare-Produced Interplanetary Shock Waves

1972
The occurrence of geomagnetic storms one to several days after some prominent solar flares has long been attributed to arrival at the earth of material ejected by the flare. Consider a volume of this material, presumably plasma from the chromosphere or low corona, moving rapidly outward into a slower ambient solar wind (such as already shown in Fig.
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Ionospheric Response to the Interplanetary Shock

AIP Conference Proceedings, 2008
The Cluster spacecraft and ground-based Digisonde network observed on November 7, 2004 a strong interplanetary shock interaction with Earth's magnetosphere which initiated a strong magnetic storm with Dst = −373 nT. When the interplanetary shock encountered the Earth system, the Cluster fleet was traveling in the inner magnetosphere region (L shell = 4.
Q.-G. Zong, B. W. Reinisch, P. Song, I. Galkin, X. J. Liu, Paul Song, John Foster, Michael Mendillo, Dieter Bilitza   +8 more
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Unusual wave activity near interplanetary shocks

AIP Conference Proceedings, 1996
It has been reported that quasi-parallel (Q(sub parallel)) shocks are generally characterized by hours of upstream ion-acoustic-like wave activity and that quasi-perpendicular (Q(sub perpendicular)) shocks show only minimal upstream wave activity. However, we report Ulysses observations of several exceptions to these trends.
G. Thejappa, R. J. MacDowall, R. G. Stone   +2 more
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Slow shocks in the interplanetary medium

Journal of Geophysical Research, 1977
The production of MHD shock ensembles in the solar wind will, in general, result in slow forward and reverse shocks in addition to fast forward and reverse shocks and a contact discontinuity. As opposed to fast shocks, which last for an extended period of time, slow shocks disappear in two stages.
Philip Rosenau, S. T. Suess
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Bow shock and its interaction with interplanetary shocks

Radio Science, 1973
Harbingers of significant magnetospheric motions consist of the interactions of interplanetary discontinuities with the standing bow shock. The most common discontinuity is the tangential discontinuity. Less frequent in occurrence, but of major significance to subsequent magnetospheric dynamics, is the flare‐generated interplanetary shock wave and its ...
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Energetic Protons Associated with Interplanetary Shocks

International Astronomical Union Colloquium, 1994
AbstractDuring the period March - May 1981, nine interplanetary shocks passing through the position of the Prognoz-8 s/c influenced the flux of energetic protons (Ep≥ 12 keV). The temporal profiles of two of them agree with the model of diffusional acceleration.
M. Slivka, K. Kudela, M. Borodkova, G. Zastenker   +3 more
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Modeling Particle Acceleration at Interplanetary Shocks

AIP Conference Proceedings, 2008
A brief review of particle acceleration at inner heliospheric interplanetary and coronal mass ejection (CME)‐driven shocks is presented. The discussion is presented in terms of a specific event that was modeled using the Particle Acceleration and Transport in the Heliosphere model (hereafter PATH) code.
G. P. Zank, Gang Li, O. Verkhoglyadova, Gang Li, Qiang Hu, Olga Verkhoglyadova, Gary P. Zank, R. P. Lin, J. Luhmann   +8 more
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Interplanetary shock waves and magnetospheric substorms

Planetary and Space Science, 1980
It is shown that substorm activity after a storm sudden commencement (SSC) depends on whether or not an interplanetary shock wave is accompanied by a large increase of the solar wind-magnetosphere energy coupling function. It has long been thought that substorm activity associated with an SSC results from sudden conversion of magnetic energy stored in ...
S.-I. Akasofu, J.K. Chao
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