Results 81 to 90 of about 1,152 (184)
Ion‐Acoustic Waves Associated With Interplanetary Shocks
Geophysical Research LettersAbstractIon‐acoustic waves (IAWs) commonly occur near interplanetary (IP) shocks. These waves are important because of their potential role in the dissipation required for collisionless shocks to exist. We study IAW occurrence statistically at different heliocentric distances using Solar Orbiter to identify the processes responsible for IAW generation ...
J. J. Boldú +12 more
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A Novel Blast Wave Solution for the Propagation of Coronal And Interplanetary Shocks
The Astrophysical JournalCoronal mass ejections (CMEs) and their associated shock waves have severe space weather effects in the near-Earth space. Therefore, predicting the propagation and arrival time of the CME/shock is an important component of the space weather forecast.
Jiaqi Chai +7 more
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Low Density Drivers of Strong Interplanetary Shocks [PDF]
International Astronomical Union Colloquium, 1996 AbstractThe theory that most, if not all, interplanetary shocks are caused by coronal mass ejections (CMEs) faces serious problems in accounting for the strongest shocks. The difficulties include (i) a remarkable absence of very strong shocks during solar maximum 1980 when CMEs were prolific, (ii) unrealistic initial speeds near the Sun for impulsive ...
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Automatic Identification of Interplanetary Shocks Based on Machine Learning
Space WeatherFast forward interplanetary shocks (FFs) are one of the primary drivers of space weather events. This study presents an automated detection algorithm for FFs based on a multilayer perceptron model, utilizing in situ measurements of interplanetary ...
Yi Tan +4 more
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Variations of Heavy Ions in Different Types of Interplanetary Shocks
The Astrophysical JournalHeavy ions upstream and downstream of interplanetary shocks are not only subject to acceleration, heating, and spatiotemporal modulation during their propagation in interplanetary space, but they can also, in turn, influence the dynamical properties of ...
Cong Wang, Qian Ye, Xuan Cheng, Fei He
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Corotating drift-bounce resonance of plasmaspheric electron with poloidal ULF waves
Earth and Planetary Physics, 2017 The purpose of this paper is to understand how low energy plasmaspheric electrons respond to ULF waves excited by interplanetary shocks impinging on magnetosphere. It is found that both energy and pitch angle dispersed plasmaspheric electrons with energy
Qiu-Gang Zong +6 more
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Evidence for superdiffusive shock acceleration at interplanetary shock waves
Journal of Physics: Conference Series, 2015 Recent analysis of time profiles of energetic particles accelerated at interplanetary shocks has shown evidence for superdiffusive transport upstream of the shock fronts, namely for a transport characterized by a particle mean square displacement that grows faster than linearly in time.
Perri S, ZIMBARDO, Gaetano
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The Astrophysical Journal LettersPickup ions (PUIs) often experience acceleration and heating as they traverse interplanetary shocks, leading to the formation of a distinct suprathermal tail in their energy spectra downstream of the shock.
Weining Wang +5 more
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Evolution of Electron Acceleration by Corotating Interaction Region Shocks at 1 au
The Astrophysical Journal LettersWe present the first observations of in situ electron acceleration at corotating interaction region (CIR) shocks near 1 au, utilizing measurements from Wind and Magnetospheric Multiscale (MMS) mission in the interplanetary medium. As the forward (reverse)
Xinnian Guo +6 more
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Solar Orbiter encounters an unusually high Mach number interplanetary shock
Astronomy & AstrophysicsAims. The objective of this study is to characterise and understand the magnetic structure of an extremely high Mach number interplanetary shock. Methods.
Dimmock A. P. +7 more
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