Magnetohydrodynamic waves and oscillations
Buoyancy-driven Magnetohydrodynamic Waves
... gravity waves ( IGWs ) that propagate through the lower solar ...buoyancy oscillations in a gravitationally strati fi ed ...and magnetohydrodynamic cases allows us to deduce the effects due to a ...
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Saturn's quasiperiodic magnetohydrodynamic waves
... The white vertical dashed lines in Figures 2a and 2b show integer values of northern phase [Yates et al., 2015]. The wavelet maxima occur near integer values of northern phase suggesting a periodic recurrence of the wave ...
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Magnetohydrodynamic Waves in an Asymmetric Magnetic Slab
... MHD waves that propagate along magnetic field and density stratifications have been widely researched in Cartesian geometry to gain first insight into the often complex magnetic structures, including ...surface ...
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Magnetohydrodynamic Waves in a Gravitationally Stratified Fluid
... In this chapter we investigate the role of a magnetic field on propagating and standing buoyancy oscillations in a gravitationally stratified medium. To do this, we make use of the Boussinesq approximation. A ...
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Compressive magnetohydrodynamic waves in the solar atmosphere
... intensity oscillations in a symmetric sunspot AR 11131 (08 Dec 2010) and an asymmetric sunspot AR 11330 (27 Oct ...low-period oscillations were mostly constrained in the sunspot umbra, while longer-period ...
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Resonant magnetohydrodynamic waves in high-beta plasmas
... 2 oscillations are imposed. 13,14 Resonant absorption has been most intensively stud- ied from two different points of view. The first point of view considers the initial value problem. In this problem a global ...
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Effect of the radiative damping on magnetohydrodynamic waves in an isothermal medium
... ω 2 . (3.5) The oscillations can be assumed to be excited by some mechanism at z = 0 or below. The exact nature of the excitation is not important because our object is to investigate the reflection and effect of ...
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Magnetohydrodynamic waves in a compressible magnetic flux tube with elliptical cross-section
... Results. It is shown that a compressible magnetic tube with elliptical cross-section supports slow and fast magneto-acoustic waves. In the thin tube approximation, the slow sausage mode and the slow and fast kink ...
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Magnetohydrodynamic Waves in Dynamic Plasmas with Solar Applications: Effect of Thermal Conduction
... Chapter 4 completes the investigation into the effect of cooling on damping the longitudinal slow standing MHD waves. In this chapter we relaxed the condition that the damping is weak and allowed the thermal ...
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Time and Spatial Damping of Magnetohydrodynamic Waves in Partially Ionised Prominence Plasmas
... magnetoacoustic waves, when partial ionisation is pre- sent the behaviour of fast, slow and thermal waves is strongly ...fast waves in a FIIP, which are damped by elec- tronic thermal conduction and ...
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Magnetohydrodynamic waves within the medium separated by the plane shock wave or rotational discontinuity
... MHD waves of small amplitude in the medium separated by a plane MHD discontinuity into two half ...MHD waves generated by the discon- tinuity are determined versus the phase velocity of surface ...
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Generation of Magnetohydrodynamic Waves in Low Solar Atmospheric Flux Tubes by Photospheric Motions
... Horizontal and vertical velocity field drivers mimic granular buffeting and solar global oscillations. A uniform torsional driver as well as Archimedean and logarithmic spiral drivers mimic observed torsional ...
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Magnetohydrodynamic surface waves in the solar atmosphere
... chromospheric oscillations, shaking the footpoints of the loop may excite both surface and body ...surface waves heat the loop through Joule and viscous ...
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Magnetohydrodynamic oscillations in the solar corona and Earth's magnetosphere : towards consolidated understanding
... MHD waves observed in the corona (see, ...field oscillations detected in the interplanetary medium was established (Potapov et ...ULF waves in the solar wind can increase geoeffectiveness of high ...
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Fine strand like structure in the solar corona from magnetohydrodynamic transverse oscillations
... Due to line-of-sight effects, the filamentary structure gen- erated by the eddies appears as strand-like structure in inten- sity images, which can be detected with a spatial resolution of 0.1 R. The intensity images can ...
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Magnetohydrodynamic kink waves in two dimensional non uniform prominence threads
... 4. Summary and conclusions Quiescent filament fine structures are only partially filled with cold and dense absorbing material. The length of the threads can in principle be measured in events showing transverse oscilla- ...
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Quasi periodic modulation of solar and stellar flaring emission by magnetohydrodynamic oscillations in a nearby loop
... Mitra-Kraev et al. 2005, and references therein). Typical peri- ods of QPP are in the range of a few ms to several min. This wide range of periods indicates that several different physical processes may be responsible for ...
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Three-dimensional numerical simulation of magnetohydrodynamic-gravity waves and vortices in the solar atmosphere
... simulate magnetohydrodynamic-gravity waves and vortices as well as their response in the magnetized three-dimensional (3D) solar atmosphere at different heights to understand the localized energy transport ...
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Waves & Oscillations
... The geometry might be complicated Boundary conditions might not be simple Initial conditions might not be known The solution is the superposition of incident waves and all possible refle[r] ...
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Magnetohydrodynamic oscillations in solar coronal rain
... period oscillations observed in IRIS 1400 ˚ A passband are of the order of 1 ...period oscillations are observable along the whole loop length, having similar periods as in IRIS observations but lower ...
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