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Solar Corona

Current sheets in the solar corona : formation, fragmentation and heating

Current sheets in the solar corona : formation, fragmentation and heating

... the solar coronal heating problem, outlining the MHD equations and sequences of MHD equilibria, before going on to discuss current sheets, resistive instabilities and finally magnetic ...

168

Joule heating and anomalous resistivity in the solar corona

Joule heating and anomalous resistivity in the solar corona

... The above-cited studies are not intended to correspond in detail to the case of Joule heating of the solar corona and the highly enhanced resistivity that would be required there. The investigations of ...

10

Ducted magnetoacoustic waves in the solar corona

Ducted magnetoacoustic waves in the solar corona

... for solar applications and 2a = Re for the Earth’ s ...the corona is taken to be 1000 km s“ ^, whilst in the magnetosphere a value of 500 km s“ ^ is considered (Mihalov et ...the solar corona ...

217

Observational evidence of sausage-pinch instability in solar corona by SDO/AIA

Observational evidence of sausage-pinch instability in solar corona by SDO/AIA

... in solar atmosphere in recent years in association with various dynamical processes ...class solar flare as previ- ously theoretically investigated in great details ...in solar active ...the ...

13

Topological structure of the magnetic solar corona

Topological structure of the magnetic solar corona

... The technique of magnetic charge topology has traditionally assumed that the region un- der consideration is small enough to allow the photosphere to be approximated as flat, but I wanted to study the entire global ...

161

Observational study of interplanetary coronal mass ejections and flare in the solar corona

Observational study of interplanetary coronal mass ejections and flare in the solar corona

... remote solar observations at the ...observed solar properties, namely the importance of CME linear speed, angular width and associated solar ...the solar cycle to estimate the impact on ...and ...

6

DOUBLE ARC INSTABILITY IN THE SOLAR CORONA

DOUBLE ARC INSTABILITY IN THE SOLAR CORONA

... the solar corona is important for understanding the causes of solar ...of solar eruptions, and if so the critical condition for eruption under certain geometry may be determined by a new type ...

8

Kinematic properties of globally propagating waves in the solar corona

Kinematic properties of globally propagating waves in the solar corona

... A semi-automated technique designed to identify, track and analyse “EIT waves” in the solar corona was applied to observations of four CBF events using data from the EUVI telescopes onboard both STEREO ...

217

Dynamics of a multi thermal loop in the solar corona

Dynamics of a multi thermal loop in the solar corona

... the solar corona is structured in the form of 1D curvilinear features, resembling closed loops in active regions, which outline the presence of strong magnetic field in the solar ...the Solar ...

8

Intermittent heating of the solar corona by MHD turbulence

Intermittent heating of the solar corona by MHD turbulence

... a solar coronal loop based on MHD and including the nonlinear transfer of energy across scales and the propagation of Alfv´en waves in a stratified ...real solar corona from the analy- sis of ...

6

Magnetohydrodynamic oscillations in the solar corona and Earth's magnetosphere : towards consolidated understanding

Magnetohydrodynamic oscillations in the solar corona and Earth's magnetosphere : towards consolidated understanding

... the solar corona, the main interest in MHD waves appeared more recently, in the late 90s, with the first obser- vations of these waves with high-resolution extreme-ultraviolet (EUV) imagers on the space ...

145

Propagating EUV disturbances in the solar corona : two wavelength observations

Propagating EUV disturbances in the solar corona : two wavelength observations

... We conclude that we observe slow magnetoacoustic waves propagating upwards along diverging magnetic field lines. Wavelet analysis shows the evidence of the presence of the sec- ond harmonics. This may be the first direct ...

5

Microturbulent magnetoactive plasmas and polarized radiation from the solar corona

Microturbulent magnetoactive plasmas and polarized radiation from the solar corona

... the solar corona, one finds the speeds of electron streams associated with type I bursts are about several times the thermal velocity of electrons in the solar corona, whereas those associated ...

206

Seismological demonstration of perpendicular density structuring in the solar corona

Seismological demonstration of perpendicular density structuring in the solar corona

... the solar corona with the Coronal Multi-channel Polarimeter (CoMP) indicate the existence of fine field structuring in the coronal ...the corona is structured in density in the perpendicular ...

5

Tracking of an electron beam through the solar corona with LOFAR

Tracking of an electron beam through the solar corona with LOFAR

... The Sun is an intense source of radio waves. Its nonthermal radio radiation is strongly related to flares, which are caused by the release of energy during reconfigurations of the Sun’s magnetic field. Thus, flares ...

9

Fast magnetoacoustic waves in a randomly structured solar corona

Fast magnetoacoustic waves in a randomly structured solar corona

... Abstract. The propagation of fast magnetoacoustic waves in a randomly structured solar corona is considered in the linear and cold plasma limits. The random field is assumed to be static and associated with ...

6

Excitation and damping of broadband kink waves in the solar corona

Excitation and damping of broadband kink waves in the solar corona

... The simulation is performed using the MHD code L are 3D, which solves the 3D MHD equations by taking a Lagrangian predictor-corrector time step, after which all variables are con- servatively re-mapped back onto the ...

13

Tracking of an electron beam through the solar corona with LOFAR

Tracking of an electron beam through the solar corona with LOFAR

... The Sun is an intense source of radio waves. Its nonthermal radio radiation is strongly related to flares, which are caused by the release of energy during reconfigurations of the Sun’s magnetic field. Thus, flares ...

9

Time dependent heating of the solar corona

Time dependent heating of the solar corona

... the solar surface. However, one of the most perplexing problems in solar physics is to explain the fact that while the photosphere (which emits most of the visible solar radiation) is at 6000K, the ...

159

LOFAR observations of the quiet solar corona

LOFAR observations of the quiet solar corona

... on solar observations with LOFAR has focused on the active Sun, for example, studies of type III radio bursts (Morosan et ...the solar corona, these results can be used to construct coronal density ...

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