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Solar coronal heating by plasma waves

Journal of Plasma Physics, 2009
AbstractThe solar coronal plasma is maintained at temperatures of millions of degrees, much hotter than the photosphere, which is at a temperature of just 6000 K. In this paper, the plasma particle heating based on the kinetic theory of wave–particle interactions involving kinetic Alfvén waves and lower-hybrid drift modes is presented.
Bingham, R.   +3 more
openaire   +2 more sources

Alfvén waves in the solar polar coronal holes

AIP Conference Proceedings, 1999
We study the variation of the line width and electron density as a function of height above two coronal holes from forbidden spectral lines of Si VIII. The spectra were obtained with the Solar Ultraviolet Measurements of Emitted Radiation spectrometer flown on the Solar and Heliospheric Observatory spacecraft.
Banerjee, D.   +3 more
openaire   +2 more sources

Solar Coronal Heating via Alfvén Wave Turbulence

AIP Conference Proceedings, 2010
A short review is given about the self‐consistent MHD model of solar coronal heating recently proposed by Bigot et al. (2008) in which the dynamical effect of the background magnetic field along a coronal structure is taken into account through exact results from Alfven wave turbulence.
B. Bigot   +7 more
openaire   +1 more source

Coronal heating and solar activity: The role of waves

Advances in Space Research, 1993
Abstract Coronal heating and solar activity are manifestations of the complex interaction between the magnetic field and the photospheric plasma motions. As a result of such an interaction magnetohydrodynamic waves are generated: their dissipation may provide the basic physical mechanism to heat the corona.
EINAUDI G   +2 more
openaire   +2 more sources

Solar coronal heating by high-frequency dispersive Alfvén waves

Solar Physics, 1999
It is shown that high-frequency dispersive kinetic Alfven waves can cause significant electron heating in the solar corona. The heating is produced by collisionless electron Landau dissipation of the parallel electron current associated with high-frequency dispersive kinetic Alfven waves, which have a parallel electric field.
Shukla, P.   +3 more
openaire   +2 more sources

Nonlinear wave heating of solar coronal loops.

Astronomy and Astrophysics, 1997
The heating of magnetically closed structures (loops) in the solar corona by the resonant absorption of incident waves is studied by means of numerical simulations in the framework of nonlinear resistive magnetohydrodynamics (MHD). It is shown that the dynamics in the resonant layer is indeed very nonlinear for typical coronal parameters. The effect of
Poedts, S., Goedbloed, J.P.
openaire   +2 more sources

Observational Research on Solar Coronal Waves.

1976
Abstract : An observational search has been made for intensity fluctuations associated with the wave motions that are thought to heat the corona. Brightness changes in the coronal green line (Fe XIV lambda 5303) and the coronal continuum were measured with the University of Hawaii's polarimeter at Mt. Haleakala.
openaire   +1 more source

Impulsively Generated Wave Trains in a Solar Coronal Loop

IEEE Transactions on Plasma Science, 2010
Impulsively generated fast magnetoacoustic wave trains in a solar coronal loop are numerically studied. The problem is considered as 2-D in space, and for the description, the full set of magnetohydrodynamic (MHD) equations is used. The numerical solution of the MHD equations is performed by means of the Lax-Wendroff algorithm on a uniformly structured
Petr Jelinek, Marian Karlicky
openaire   +1 more source

Interchange reconnection as the source of the fast solar wind within coronal holes

Nature, 2023
Stuart D Bale   +2 more
exaly  

Picoflare jets power the solar wind emerging from a coronal hole on the Sun

Science, 2023
Lakshmi Pradeep Chitta   +2 more
exaly  

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