Phase Mixing of Alfvén Waves Near a 2D Magnetic Null Point [PDF]
, 2013 The propagation of linear Alfvén wave pulses in an inhomogeneous plasma near a 2D coronal null point is investigated. When a uniform plasma density is considered, it is seen that an initially planar Alfvén wavefront remains planar, despite the varying ...
AB Hassam +38 more
core +2 more sources
Alfvén-Wave Instability of Current Sheets in Force-Free Collisionless Plasmas [PDF]
, 1999 If the current sheet between adjacent twisted magnetic flux tubes is sufficiently thin, the electron flow velocity becomes comparable to the Alfvén velocity and can destabilize collisionless Alfvén waves.
Bellan, P. M.
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On the validity of nonlinear Alfvén resonance in space plasmas [PDF]
, 2008 Aims. In the approximation of linear dissipative magnetohydrodynamics (MHD), it can be shown that driven MHD waves in magnetic plasmas with high Reynolds number exhibit a near resonant behaviour if the frequency of the wave becomes equal to the local ...
Arregui +35 more
core +3 more sources
Alfvén 'resonance' reconsidered: Exact equations for wave propagation across a cold inhomogeneous plasma [PDF]
, 1994 Previous discussions of Alfvén wave propagation across an inhomogeneous plasma predicted that shear Alfvén waves become singular (resonant) at the omega = k(z)v(A) layer and that there is a strong wave absorption at this layer giving localized ion ...
Bellan, P. M.
core +2 more sources
A weakly nonlinear Alfvénic pulse in a transversely inhomogeneous medium [PDF]
, 2001 The interaction of a weakly nonlinear Alfvénic pulse with an Alfvén speed inhomogeneity in the direction perpendicular to the magnetic field is investigated.
Abdelatif +28 more
core +4 more sources
Seismology of curved coronal loops with vertically polarised transverse oscillations [PDF]
, 2006 Aims. Using a model of vertically polarised fast magnetoacoustic waves in curved coronal loops, the method of coronal seismology is applied to observations of transverse loop oscillations. Methods.
Foullon, C. (Claire) +2 more
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Torsional Alfvén waves: magneto-seismology in static and dynamic coronal plasmas [PDF]
, 2011 Aims: We study the properties of torsional Alfvén waves in coronal loops so that they may be exploited for coronal seismological applications. Methods: The governing equation is obtained for standing torsional Alfvén waves of a dynamic, gravitationally
Andries +58 more
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Alfvén Wave Conversion and Reflection in the Solar Chromosphere and Transition Region
Physics, 2022 Series solutions are used to explore the mode conversion of slow, Alfvén and fast magnetohydrodynamic waves injected at the base of a two-isothermal-layer stratified atmosphere with a uniform magnetic field, crudely representing the solar chromosphere ...
Paul Cally
doaj +1 more source
Rapid dissipation in a current sheet driven by footpoints motions [PDF]
, 2006 Context.Wave energy dissipation by viscous and resistive damping in magnetic coronal plasmas is addressed. A two and one half dimensional, line-tied magnetic channel is considered whose footpoints are disturbed by buffeting motions of the photosphere ...
Craig, Ian J.D., Fruit, G.
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Ion acceleration by parallel propagating nonlinear Alfvén wave packets in a radially expanding plasma [PDF]
Nonlinear Processes in Geophysics, 2014 The numerical simulation of the nonlinear evolution of the parallel propagating Alfvén waves in a radially expanding plasma is performed by using a kinetic-fluid model (the Vlasov–MHD model). In our study, both the nonlinear evolution of the Alfvén waves
Y. Nariyuki +3 more
doaj +1 more source