Waves in the solar atmosphere
Magnetohydrodynamic surface waves in the solar atmosphere
... surface waves and their possible application to observations of waves in the solar ...surface waves and their natural intrinsic interest, we examine in some detail the nature of ...
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The propagation and damping of slow magnetoacoustic waves in the solar atmosphere
... By using a range of spectral lines, waves can be observed as they propagate through the solar atmosphere. With the addition of an equilibrium temperature gradient the forward modelling results vary ...
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The Generation and Damping of Propagating MHD Kink Waves in the Solar Atmosphere
... upper solar atmosphere to temperatures in excess of a million degrees and the acceleration of the solar wind to hundreds of kilometers per second is still ...(MHD) waves, which are ...
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Alfven Waves in the Lower Solar Atmosphere
... the solar atmosphere and the heating of the Sun’s outer regions are still not ...the solar disk ...Alfv´en waves produced by a torsional twist of ±22 ...
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Three-Dimensional Simulations Of Magnetohydrodynamic Waves In Magnetized Solar Atmosphere
... There is indeed a more stronger azimuthal energy flux for the torsionally excited flux tube. 6. SUMMARY AND CONCLUSION Three-dimensional modelling of the MHD wave prop- agation in a magnetic flux tube embedded in a ...
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Three-dimensional numerical simulation of magnetohydrodynamic-gravity waves and vortices in the solar atmosphere
... lar atmosphere with an adaptation of the FLASH code, which demon- strates the feasibility of fluid simulations in obtaining quantitative features in the weakly magnetized and gravitationally stratified ...
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Collisional and viscous damping of MHD waves in partially ionized plasmas of the solar atmosphere
... MHD waves damping due to collisional friction and viscous energy dissipation mechanisms in the par- tially ionized solar ...the solar atmosphere and we try to fill this ...
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Compressive magnetohydrodynamic waves in the solar atmosphere
... MDI is a refracting telescope. The incident photon flux undergoes a cascade of filters and then impinges on the CCD camera (Scherrer et al. 1995). Two tuneable Michelson interferometers scan across the Ni I 6,768 Å ...
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Effects of partial ionisation in the solar atmosphere
... Sun’s atmosphere, and estimates of transport parameters were ...Alfv´en waves in the solar atmosphere in chapter ...Alfv´en waves was ...attenuating waves of frequencies greater ...
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MHD flows in the solar atmosphere
... static atmosphere with a dipolar mag netic field and then to switch on a wind by lowering the pressure at the outer boundary, with the same technique explained in Chapter 6 and used for the hydrodynamic 1-D ver ...
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Oscillations and waves in solar spicules
... Received: date / Accepted: date Abstract Since their discovery, spicules have attracted increased attention as en- ergy/mass bridges between the dense and dynamic photosphere and the tenuous hot solar corona. ...
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Transverse waves in the solar corona
... as solar flares, CMEs and magnetic ...the solar atmosphere is the plasma-β ...the solar limb observed by SDO is shown in figure ...the atmosphere for example the photosphere and the ...
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Reflection and dissipation of oblique Alfvén waves in an isothermal atmosphere
... Atmospheric waves, Alfvén waves, wave ...atmospheric waves in an isothermal atmo- sphere has been studied in recent ...as solar, stel- lar, and earth’s ...isothermal atmosphere may ...
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Energy loss of solar p modes due to the excitation of magnetic sausage tube waves: importance of coupling the upper atmosphere
... of solar p modes due to their energy loss to magnetic tube waves that can freely carry energy out of the acoustic ...tube waves is studied in a model atmosphere composed of a polytropic ...
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Solar atmosphere wave dynamics generated by solar global oscillating eigenmodes
... stratified solar atmosphere may be understood through the occur- rence of eigen-oscillations of the ...upper atmosphere is embedded in (as a first approximation highly vertical) magnetic field, as ...
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Is magnetic topology important for heating the solar atmosphere?
... the solar atmosphere and powers events, large and small, from solar flares and coronal mass ejections down to X-ray bright points and nanoflares, comes from convective motions below the solar ...
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The effects of magnetic fields on oscillations in the solar atmosphere
... Two series o f modes are found to exist, fast and slow with high and low frequencies respectively (the modes are identified by studying the phase relationships between the various perturbed quantities). Periods are ...
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Solar activity impact on the Earth’s upper atmosphere
... The upper row of plots in Figure 3 shows the latitude struc- tures of the COSMIC 9-day wave amplitudes seen in foF2 (left plot) and in hmF2 (right plot). The 9-day ionospheric responses amplify concurrently with the ...
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Waves in the middle atmosphere
... This in turn is applicable to the discussion of the relative importance of tides and internal gravity waves in the meridional transport of zonal momentum which [r] ...
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Acoustic gravity waves in the atmosphere generated by infragravity waves in the ocean
... Specifically, we use the data obtained with the VIPIR/ Dynasonde HF radar system located at NASA ’s Wallops Flight Facility in Virginia, USA. Projections of the vel- ocity fluctuations onto the magnetic field line ...
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