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Strength of Coronal Mass Ejection‐driven Shocks near the Sun and Their Importance in Predicting Solar Energetic Particle Events [PDF]
Astrophysical Journal, 2007 Coronal shocks are important structures, but there are no direct observations of them in solar and space physics. The strength of shocks plays a key role in shock-related phenomena, such as radio bursts and solar energetic particle (SEP) generation. This paper presents an improved method of calculating Alfven speed and shock strength near the Sun. This
Chenglong Shen +2 more
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Effects of background solar wind on the propagation of coronal mass ejection driven shock
2023Propagation of interplanetary (IP) shocks, particularly those driven by coronal mass ejections (CMEs), is still an outstanding question in heliophysics and space weather forecasting. Here we address effects of the ambient solar wind on the propagation of two CME-driven shocks from Sun to Earth. The two CME-driven&
Chin-Chun Wu +3 more
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Astrophysical Journal, 1996
A variety of studies have demonstrated that large (gradual) solar energetic particle (SEP) events are produced by shocks driven by fast coronal mass ejections (CMEs). As the CME-driven shocks propagate through the corona and interplanetary space, they accelerate energetic particles from ambient plasma.
A J Tylka, J H Adams
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A variety of studies have demonstrated that large (gradual) solar energetic particle (SEP) events are produced by shocks driven by fast coronal mass ejections (CMEs). As the CME-driven shocks propagate through the corona and interplanetary space, they accelerate energetic particles from ambient plasma.
A J Tylka, J H Adams
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Solar Physics, 1995
The observation of non-corotating shock fronts in interplanetary space is always associated with the previous occurrence of a coronal mass ejection (CME), which is frequently accompanied by a flare or a prominence eruption. When looking at the solar region of origin of these events, a coronal hole is always found.
S Bravo, Bravo S
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The observation of non-corotating shock fronts in interplanetary space is always associated with the previous occurrence of a coronal mass ejection (CME), which is frequently accompanied by a flare or a prominence eruption. When looking at the solar region of origin of these events, a coronal hole is always found.
S Bravo, Bravo S
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Evidence for shock generation in the solar corona in the absence of coronal mass ejections
Astronomy Reports, 2017The solar event SOL2012–10–23T03:13, which was associated with a X1.8 flare without an accompanying coronal mass ejection (CME) and with a Type II radio burst, is analyzed. A method for constructing the spatial and temporal profiles of the difference brightness detected in the AIA/SDOUVand EUV channels is used together with the analysis of the Type II ...
V. G. Eselevich +3 more
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Particle acceleration and coronal mass ejection driven shocks: Shocks of arbitrary strength [PDF]
Journal of Geophysical Research, 2003 [1] There is substantial evidence suggesting that energetic particles observed in "gradual'' solar energetic particle events are accelerated at shock waves driven out of the corona by coronal mass ejections (CMEs).
Ken Rice, G P Zank, Gang Li
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Journal of Geophysical Research, 1997
We examine the role of coronal mass ejections (CMEs) and interplanetary shocks in modifying the large‐scale winding of the interplanetary magnetic field (IMF) by extracting CME and shock observations from the ISEE 3 data set and analyzing periods of the disturbed and undisturbed solar wind separately.
Charles W Smith, John L Phillips
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We examine the role of coronal mass ejections (CMEs) and interplanetary shocks in modifying the large‐scale winding of the interplanetary magnetic field (IMF) by extracting CME and shock observations from the ISEE 3 data set and analyzing periods of the disturbed and undisturbed solar wind separately.
Charles W Smith, John L Phillips
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Early-stage Solar Energetic Particle Acceleration by Coronal Mass Ejection-driven Shocks with Realistic Seed Spectra. I. Low Corona [PDF]
Astrophysical Journal, 2019 Abstract An outstanding problem in heliospheric physics is understanding the acceleration of solar energetic particles (SEPs) in coronal mass ejections (CMEs) and flares. A fundamental question is whether the acceleration occurs in interplanetary space or near the Sun.
Kamen Kozarev +2 more
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Advances in Space Research, 1995
A survey of the Pioneer Venus Orbiter (PVO) magnetometer and plasma data from 1979-1980, shows that the occurrence frequency of interplanetary shocks, coronal mass ejections (CMEs) and stream interactions observed at 0.7 AU exhibits a solar cycle variation.
G.M. Lindsay +3 more
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A survey of the Pioneer Venus Orbiter (PVO) magnetometer and plasma data from 1979-1980, shows that the occurrence frequency of interplanetary shocks, coronal mass ejections (CMEs) and stream interactions observed at 0.7 AU exhibits a solar cycle variation.
G.M. Lindsay +3 more
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Energetic particle acceleration and transport at coronal mass ejection-driven shocks [PDF]
Journal of Geophysical Research, 2003 [1] Evidence now exists which suggests that in large solar energetic particle (SEP) events, particles are often accelerated to similar to MeV energies (and perhaps up to GeV energies) at shock waves driven by coronal mass ejections (CMEs).
Gang Li, G P Zank, Ken Rice
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