Results 1 to 10 of about 16,413 (221)

The Coronal Analysis of SHocks and Waves (CASHeW) framework [PDF]

open access: yesJournal of Space Weather and Space Climate, 2017
Coronal bright fronts (CBF) are large-scale wavelike disturbances in the solar corona, related to solar eruptions. They are observed (mostly in extreme ultraviolet (EUV) light) as transient bright fronts of finite width, propagating away from the ...
Kozarev Kamen A.   +4 more
doaj   +2 more sources

Why “Solar Tsunamis” Rarely Leave Their Imprints in the Chromosphere

open access: yesThe Astrophysical Journal Letters, 2023
Solar coronal waves frequently appear as bright disturbances that propagate globally from the eruption center in the solar atmosphere, just like the tsunamis in the ocean on Earth.
Ruisheng Zheng   +12 more
doaj   +1 more source

High-order Harmonics of a Kink Wave and a Narrow Quasiperiodic Fast-propagating Wave Train Excited Simultaneously in a Plasma Resonator

open access: yesThe Astrophysical Journal, 2023
We present the observations of multimode kink waves and a narrow quasiperiodic fast-propagating (QFP) wave train in association with a jet on 2011 December 11.
Zhining Qu   +5 more
doaj   +1 more source

MHD waves at a spherical interface modelling coronal global EIT waves [PDF]

open access: yes, 2007
Energetically eruptive events such as flares and coronal mass ejections (CMEs) are known to generate global waves, propagating over large distances, sometimes comparable to the solar radius.
I. Ballai, M. Douglas, Nakariakov
core   +3 more sources

Standing Sausage Perturbations in Solar Coronal Slabs with Continuous Transverse Density Profiles: Cutoff Wavenumbers, Evanescent Eigenmodes, and Oscillatory Continuum

open access: yesThe Astrophysical Journal, 2023
The lack of observed sausage perturbations in solar active region loops is customarily attributed to the relevance of cutoff axial wavenumbers and the consequent absence of trapped modes (called “evanescent eigenmodes” here).
Zexing Wang   +3 more
doaj   +1 more source

The Role of High-frequency Transverse Oscillations in Coronal Heating

open access: yesThe Astrophysical Journal Letters, 2023
Transverse oscillations that do not show significant damping in solar coronal loops are found to be ubiquitous. Recently, the discovery of high-frequency transverse oscillations in small-scale loops has been accelerated by the Extreme Ultraviolet Imager ...
Daye Lim   +5 more
doaj   +1 more source

A Multi-Event Study of Early-Stage SEP Acceleration by CME-Driven Shocks—Sun to 1 AU

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The solar corona between below 10 solar radii is an important region for early acceleration and transport of solar energetic particles (SEPs) by coronal mass ejection-driven shock waves.
Kamen Kozarev   +4 more
doaj   +1 more source

Coronal global EIT waves as tools for multiple diagnostics [PDF]

open access: yes, 2007
Observations in EUV lines of the solar corona revealed large scale propagating waves generated by eruptive events able to travel across the solar disk for large distances. In the low corona, CMEs are known to generate, e.g. EIT waves which can be used to
I. Ballai, M. Douglas, Nowak
core   +1 more source

Impulsively Generated Linear and Non-linear Alfven Waves in the Coronal Funnels [PDF]

open access: yes, 2014
We present simulation results of the impulsively generated linear and non-linear Alfv\'en waves in the weakly curved coronal magnetic flux-tubes (coronal funnels) and discuss their implications for the coronal heating and solar wind acceleration.
Chmielewski, P.   +3 more
core   +1 more source

Density Enhancement Streams in The Solar Wind

open access: yesThe Astrophysical Journal Letters, 2023
This Letter describes a new phenomenon on the Parker Solar Probe of recurring plasma density enhancements that have Δ n/n ∼ 10% and that occur at a repetition rate of ∼5 Hz.
F. S. Mozer   +7 more
doaj   +1 more source

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