Results 121 to 130 of about 426 (204)

Triennial Report 2006-2009. Commission 10: Solar Activity [PDF]

open access: yes, 2008
Commission 10 deals with solar activity in all of its forms, ranging from the smallest nanoflares to the largest coronal mass ejections. This report reviews scientific progress over the roughly two-year period ending in the middle of 2008.
Klimchuk, James A.
core  

Identification of Coronal Mass Ejection–Driven Shocks Based on Numerical Simulation and Deep Learning

open access: yesThe Astrophysical Journal
Coronal mass ejections (CMEs) are eruptions originating from the solar corona, usually carrying a large amount of fast-flowing plasma into interplanetary space, accompanied by an enhanced magnetic field.
Jing’en Li   +4 more
doaj   +1 more source

Electron Shock Drift Acceleration at a Low-Mach-number, Low-plasma-beta Quasi-perpendicular Shock

open access: yesThe Astrophysical Journal
Shock drift acceleration (SDA) plays an important role in generating high-energy electrons at quasi-perpendicular shocks, but its efficiency in low-beta plasmas is questionable. In this article, we perform a two-dimensional particle-in-cell simulation of
Ao Guo   +4 more
doaj   +1 more source

Cannibals in PARADISE: The Effect of Merging Interplanetary Shocks on Solar Energetic Particle Events

open access: yesThe Astrophysical Journal Letters
Gradual solar energetic particle (SEP) events are associated with shocks driven by coronal mass ejections (CMEs). The merging of two CMEs (so-called cannibalistic CMEs) and the interaction of their associated shocks has been linked to some of the most ...
Antonio Niemela   +5 more
doaj   +1 more source

Improved modelling of SEP event onset within the WSA–Enlil–SEPMOD framework

open access: yesJournal of Space Weather and Space Climate
Multi-spacecraft observations of solar energetic particle (SEP) events not only enable a deeper understanding and development of particle acceleration and transport theories but also provide important constraints for model validation efforts.
Palmerio Erika   +16 more
doaj   +1 more source

Earth-affecting solar transients: a review of progresses in solar cycle 24. [PDF]

open access: yesProg Earth Planet Sci, 2021
Zhang J   +18 more
europepmc   +1 more source

Variations of Heavy Ions in Different Types of Interplanetary Shocks

open access: yesThe Astrophysical Journal
Heavy 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
doaj   +1 more source

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