Results 41 to 50 of about 1,001 (183)
The Astrophysical Journal Letters, 2023 We propose that coronal heating in EUV coronal plumes is weaker, not stronger, than in adjacent nonplume coronal magnetic funnels. This expectation stems from (i) the observation that an EUV plume is born as the magnetic flux at the foot of the plume’s ...
Ronald L. Moore +3 more
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Schumann Resonance Frequency Increase Following Recurrent Solar Wind Stream Onsets
Earth and Space Science, Volume 13, Issue 10, October 2026.Abstract Recurrent high‐speed streams and corotating interaction regions (HSS/CIRs) are common solar‐wind drivers, but their influence on Schumann resonance (SR) frequencies remains poorly quantified. We analyzed 173 threshold‐defined HSS/CIR proxy onsets using superposed epoch composites, bootstrap uncertainty, and a month‐matched random‐epoch null ...
J. Tacza +4 more
wiley +1 more source
The Astrophysical JournalThe response of a solar coronal plasma loop to an impulsive perturbation, demonstrating the simultaneous formation of guided and leaky fast magnetoacoustic wave trains, is numerically studied.
Mijie Shi +3 more
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Solar wind and kinetic heliophysics [PDF]
Annales Geophysicae, 2018 This paper reviews recent aspects of solar wind physics and elucidates the role Alfvén waves play in solar wind acceleration and turbulence, which prevail in the low corona and inner heliosphere.
E. Marsch, E. Marsch
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Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.Abstract This study examines the equatorial ionospheric response over the South American sector during the onset of the extreme 2024 Mother's Day geomagnetic storm, which began at ∼17 UT on 10 May and reached the G5 level. Pronounced disturbances in ionospheric electrodynamics were observed under both daytime and nighttime conditions. Variations in the
A. M. Santos +21 more
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Identification of Nonlinear Damping of Transverse Loop Oscillations by KHI-induced Turbulence
The Astrophysical JournalKink oscillations in coronal loops have been extensively studied for their potential contributions to coronal heating and their role in plasma diagnostics through coronal seismology. A key focus is the strong damping of large-amplitude kink oscillations,
Sihui Zhong +2 more
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Short period fast waves in solar coronal loops [PDF]
Astronomy & Astrophysics, 2003 Short period fast magnetoacoustic waves propagating along solar coronal loops, perturbing the loop boundary along the line of sight (LOS), may be observed by imaging telescopes. The relationship between the difference in emission intensity, the angle between the LOS and the direction of propagation and the wave amplitude and wavelength, is explored for
F. C. Cooper +2 more
openaire +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.Abstract This study presents a high‐resolution three‐dimensional global magnetohydrodynamic (MHD) simulation of the historic geomagnetic storm of 10–11 May 2024, using observational data for the ACE solar wind input. This extreme event was characterized by intense solar wind dynamic pressure (∼50 nPa) and exceptionally strong interplanetary magnetic ...
Kyung Sun Park
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Effect of Solar Flares on Decayless Kink Oscillations in Nearby Coronal Loops
The Astrophysical JournalWe present a statistical study of 130 solar flares (B to X class) that lack soft X-ray quasiperiodic pulsations and show no kink oscillations of nearby coronal loops visible in Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) 171 Å ...
Zhiyi Li +3 more
doaj +1 more source