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Coronal mass ejections and interplanetary shocks
Journal of Geophysical Research: Space Physics, 1985A comparison between Solwind observations of coronal mass ejections (CME's) and Helios 1 observations of interplanetary shocks during 1979–1982 indicates that 72% of the shocks were associated with large, low‐latitude mass ejections on the nearby limb.
Sheeley Jr., N. +6 more
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Waves upstream of interplanetary shocks
2023Interplanetary (IP) shocks can be driven in the solar wind by fast coronal mass ejections and by the interaction of fast solar wind with slow streams of plasma. These shocks can be preceded by extended waves and suprathermal ion foreshocks. Shocks characteristics as well as the level of wave activity near them change as they propagate through the ...
Xochitl Blanco-Cano +8 more
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Interplanetary shock collisions: Forward with reverse shocks
Astrophysics and Space Science, 1986When one interplanetary shock overtakes another, the structure that results depends upon the nature of the interacting shocks. We examine, numerically, the results of collisions of forward with reverse shocks, in two dimensions, and show that the results depend primarily upon shock strength.
Z. K. Smith, M. Dryer, S. M. Han
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Propagation of Interplanetary Shocks Across the Bow Shock
AIP Conference Proceedings, 2010An important problem of the Space Weather Program is the interaction of interplanetary (IP) shocks with the Earth magnetosphere because their interaction often (but not always) leads to major geomagnetic storms. Since the huge interaction region can be covered by simultaneous spacecraft observations only sporadically, global MHD modeling can help in ...
Zdeněk Nem̌ecěk +9 more
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Origin of strong interplanetary shocks
Nature, 1985Observations of 900 radio sources have been used to study the shape and motion of large-scale interplanetary transients associated with shock disturbances at 1 AU. The variations of plasma density and speed and the zones in the solar atmosphere from which the transients originate suggest an origin related to intermittent flows of enhanced speed from ...
A. Hewish, S. J. Tappin, G. R. Gapper
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The evolution of interplanetary shocks
Journal of Geophysical Research: Space Physics, 1985Unambiguous identification of the solar events associated with 48 interplanetary (IP) shocks has been facilitated by the observation of radio emission generated by the shocks. This identification makes possible an investigation of the way in which these shocks evolve and of the relationship between solar event “strength” and shock velocity. All but two
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Slow shocks in the interplanetary medium
Journal of Geophysical Research, 1977The 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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Evolution and interaction of interplanetary shocks
Journal of Geophysical Research: Space Physics, 1985The paper presents a computer simulation for the evolution and interaction of shocks resulting from large interplanetary streams based on multispacecraft observations and an unsteady, one‐dimensional, MHD model. We studied two events, each observed by two or more spacecraft separated by a distance of the order of 10 AU and consisting of a sequence of ...
Y. C. Whang, L. F. Burlaga
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Ionospheric Response to the Interplanetary Shock
AIP Conference Proceedings, 2008The 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 +8 more
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Observations of interplanetary shocks: Recent progress
Space Science Reviews, 1983Interplanetary shock observations since the prior Solar Terrestrial Physics Symposium in 1978 are reviewed. Since the interval coincides with the recent solar maximum, emphasis is placed on shocks associated with transient solar phenomena, including coronal transients and eruptive prominences as well as flares.
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