Results 11 to 20 of about 1,743 (137)

Diagnostics of the solar coronal plasmas by magnetohydrodynamic waves: magnetohydrodynamic seismology

open access: yesReviews of Modern Plasma Physics
AbstractMacroscopic wave and oscillatory phenomena ubiquitously detected in the plasma of the corona of the Sun are interpreted in terms of magnetohydrodynamic theory. Fast and slow magnetoacoustic waves are clearly distinguished in observations. Properties of coronal magnetohydrodynamic waves are determined by local parameters of the plasma, including
Valery M. Nakariakov   +5 more
openaire   +4 more sources

Coronal Waves and Oscillations

open access: yesLiving Reviews in Solar Physics, 2005
Wave and oscillatory activity of the solar corona is confidently observed with modern imaging and spectral instruments in the visible light, EUV, X-ray and radio bands, and interpreted in terms of magnetohydrodynamic (MHD) wave theory.
Nakariakov Valery M., Verwichte Erwin
doaj   +2 more sources

A Statistical Study of Short-period Decayless Oscillations of Coronal Loops in an Active Region

open access: yesThe Astrophysical Journal, 2023
Coronal loop oscillations are common phenomena in the solar corona, which are often classified as decaying and decayless oscillations. Using the high-resolution observation measured by the Extreme Ultraviolet Imager (EUI) on board the Solar Orbiter, we ...
Dong Li, David M. Long
doaj   +1 more source

EVIDENCE OF THERMAL CONDUCTION SUPPRESSION IN A SOLAR FLARING LOOP BY CORONAL SEISMOLOGY OF SLOW-MODE WAVES [PDF]

open access: yesThe Astrophysical Journal, 2015
7 pages, 5 figures, ApJ Lett., 811, L13 ...
Tongjiang Wang   +4 more
openaire   +2 more sources

SEISMOLOGY OF A LARGE SOLAR CORONAL LOOP FROM EUVI/STEREOOBSERVATIONS OF ITS TRANSVERSE OSCILLATION [PDF]

open access: yesThe Astrophysical Journal, 2009
The first analysis of a transverse loop oscillation observed by both Solar TErrestrial RElations Observatories (STEREO) spacecraft is presented, for an event on the 2007 June 27 as seen by the Extreme Ultraviolet Imager (EUVI). The three-dimensional loop geometry is determined using a three-dimensional reconstruction with a semicircular loop model ...
Verwichte, E.   +4 more
openaire   +2 more sources

Oscillatory Reconnection as a Plasma Diagnostic in the Solar Corona

open access: yesThe Astrophysical Journal, 2023
Oscillatory reconnection is a relaxation process in magnetized plasma, with an inherent periodicity that is exclusively dependent on the properties of the background plasma. This study focuses on the seismological prospects of oscillatory reconnection in
Konstantinos Karampelas   +3 more
doaj   +1 more source

Damping Scenarios of Kink Oscillations of Solar Coronal Loops

open access: yesUniverse, 2023
The transition from the large-amplitude rapidly-decaying regime of kink oscillations of plasma loops observed in the corona of the Sun to the low-amplitude decayless oscillations is modelled.
Valery M. Nakariakov   +1 more
doaj   +1 more source

Radio seismology of the outer solar corona [PDF]

open access: yes, 2013
Observed oscillations of coronal loops in EUV lines have been successfully used to estimate plasma parameters in the inner corona (< 0.2 R_0, where R_0 is the solar radius).
Brazhenko, A. I.   +7 more
core   +1 more source

Equatorially trapped Rossby waves in radiative stars

open access: yesAstronomische Nachrichten, Volume 344, Issue 10, December 2023., 2023
Abstract Observations by recent space missions reported the detection of Rossby waves (r‐modes) in light curves of many stars (mostly A, B, and F spectral types) with outer radiative envelope. This article aims to study the theoretical dynamics of Rossby‐type waves in such stars. Hydrodynamic equations in a rotating frame were split into horizontal and
Mariam Albekioni   +4 more
wiley   +1 more source

Damping and Dispersion of Non-Adiabatic Acoustic Waves in a High-Temperature Plasma: A Radiative-Loss Function

open access: yesPhysics, 2023
The behavior of acoustic waves in a rarefied high-temperature plasma is studied; as an example, the plasma of the solar corona is considered. Effects of thermal conductivity and a heating/radiative loss are taken into account; data on a temperature ...
Sergei Derteev   +3 more
doaj   +1 more source

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