MHD waves
MHD waves at a spherical interface modelling coronal global EIT waves
... propagating MHD waves in different layers of the solar ...coronal waves is the EIT wave, so-called as they were first observed by the EIT instrument onboard ...EIT waves are often observed as ...
5
Collisional and viscous damping of MHD waves in partially ionized plasmas of the solar atmosphere
... of MHD waves under certain conditions could be comparable or even stronger than the vis- cous ...magnetoacoustic waves, propagating along the magnetic field in the corona can be easily obtained from ...
13
A fluid description for Landau damping of dispersive MHD waves
... oblique MHD waves in a collisionless plasma permeated by a uniform magnetic field is addressed using a Landau-fluid model that includes Hall effect and electron-pressure gradient in a generalized Ohm’s law ...
14
Excitation of kinetic Alfv´en turbulence by MHD waves and energization of space plasmas
... Alfv´en waves in a vertically stratified corona can give rise to the counter-propagating waves (Leamon et ...intermediate-frequency waves, f = 10 −1 ÷ 10 0 Hz (actually, for f >10 −2 Hz), the ...
9
On MHD waves, fire-hose and mirror instabilities in anisotropic plasmas
... of MHD waves, fire-hose and mirror instabilities in gyrotropic plasmas are examined sys- tematically within the framework of generalized CGL-MHD ...linear MHD waves and instabilities is ...
12
Dispersive MHD waves and alfvenons in charge non-neutral plasmas
... ear MHD waves, including shear, kinetic, electron inertial Alfv´en, and slow and fast magnetosonic waves are analyzed using both analytical expansions and a novel technique of dispersion ...Alfv´en ...
13
Nonlinear theory of resonant slow MHD waves in twisted magnetic flux tubes
... slow MHD waves in weakly dissi- pative plasmas is investigated in cylindrical geometry with a twisted equilibrium magnetic ...ideal MHD theory by Sakurai, Goossens and Hollweg [Solar ...
20
Multi instrument observations of a failed flare eruption associated with MHD waves in a loop bundle
... Context. We present observations of a B7.9 class flare that occurred on January 24th, 2015, using SDO/AIA, Hinode/EIS and XRT. The flare triggers an eruption of a dense cool plasma blob as seen in AIA 171Å which is ...
14
Nonlinear MHD waves and discontinuities in the Martian magnetosheath Observations and 2D bi ion MHD simulations
... standing MHD waves and discontinuities which accommodate all necessary changes in the plasma flow and the magnetic ...magnetosound waves in front of an obstacle, is needed to divert the supersonic ...
9
Modeling observed decay less oscillations as resonantly enhanced Kelvin Helmholtz vortices from transverse MHD waves and their seismological application
... 3D MHD have shown that transverse MHD waves can become unstable to KHI due to shear motions at the boundary of flux tubes (Karpen et ...transverse MHD waves leads to the generation of a ...
8
Dynamics of nonlinear resonant slow MHD waves in twisted flux tubes
... of MHD waves is usually described in the framework of dissipative ...of MHD waves in homogeneous plasma is not a viable heating ...of MHD waves can be ef- ficient, since the ...
8
Multiwavelength studies of MHD waves in the solar chromosphere: An overview of recent results
... that waves interacting with magnetic field lines can also induce the instabilities necessary to incite reconnective phenomena ...how MHD waves can be initiated within large-scale coronal streamers ...
49
MHD waves and oscillations in solar coronal waveguides
... To study the processes which occur in the Sun’s atmosphere in more detail accurate knowledge of the local plasma environment is required. This includes the magnetic field, temperature and density, as well as the ...
163
Coupling of the solar wind, magnetosphere and ionosphere by MHD waves
... This chapter sets out the methods – the model, governing equations and computer codes – used to investigate self-consistent magnetosphere-ionosphere (MI) coupling in later chapters. We have in fact developed two ...
188
Buoyancy-driven magnetohydrodynamic waves in a partially ionized plasma
... (1965). MHD waves in a two-fluid MHD model (where the electrons and ions may be considered as a single fluid, valid for timescales longer than the ion – electron collision time) were studied by, ...
8
Eclipse observations of high frequency oscillations in active region coronal loops
... fast-mode MHD waves. They concluded that slow-mode waves can deposit enough energy to heat the corona under certain conditions, and for periodicities τ ≤ 100 s; for fast-mode waves the upper ...
6
MHD simulations of the in situ generation of kink and sausage waves in the solar corona by collision of dense plasma clumps
... of MHD waves along the ...the waves are released depends on i) the duration of the clumps collision, that is of course proportional to their length and ii) the speed of the clumps as their inertia ...
12
Propagation of solitons of the Derivative Nonlinear Schrodinger equation in a plasma with fluctuating density
... The aim of this paper is also to derive the modified DNLS equation for a Hall plasma with inhomogeneous den- sity. However, in contrast to Buti 8 and Buti et al., 9 we con- sider random fluctuation of the equilibrium ...
7
On the properties of slow mhd sausage waves within small-scale photospheric magnetic structures
... ideal MHD equations for this system, found that the fast MHD wave will turn into a slow MHD sausage wave at the Alfv´en-acoustic equipartition level (which is where the sound speed is equal the ...
11
Heliospheric pick-up ions influencing thermodynamics and dynamics of the distant solar wind
... Alfv´en waves, these ions are then processed in the comoving velocity ...PUI-scattered waves operating by the PUI pressure ...with MHD tur- ...drive MHD waves that are partly absorbed ...
10