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The solar corona and coronal heating problem

Intermittent heating of the solar corona by MHD turbulence

Intermittent heating of the solar corona by MHD turbulence

... of coronal heating, however such comparisons can yield scientific re- turn on coronal heating problem only if they allow to dis- criminate between heating ...the heating ...

6

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

Recent advances in coronal heating

Recent advances in coronal heating

... The solar corona, the tenuous outer atmosphere of the Sun, is orders of magnitude hotter than the solar ...“coronal heating problem” requires the iden- tification of a heat ...

8

MHD simulations of coronal heating

MHD simulations of coronal heating

... The coronal heating problem has been a topic of great interest for ...flare heating model and examine whether the energy released by nanoflares is sufficient to heat the solar ...

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Coronal Heating Problem

Coronal Heating Problem

... Fast solar wind leaves the corona through coronal holes Heating requirement: 5 × 10 0 − 1 × 10 1 W / m 2. Compose 0.4% of total heating requirement.[r] ...

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Heating plasma loops in the solar corona

Heating plasma loops in the solar corona

... of heating to reach the values implied by observation, the Ñow must con- vergence with velocities of at least 1% of the Alfven speed, which in loops with a Ðeld of about 100 G is D3 ] 103 km ...persisting ...

8

Time dependent heating of the solar corona

Time dependent heating of the solar corona

... a coronal loop could act as a resonant cavity and that the transmission of energy into the loop was enhanced at certain resonant frequen­ ...necessary heating rate for the quiet corona, a 1 0 0 s ...

159

Review Heating mechanisms of the solar corona

Review Heating mechanisms of the solar corona

... Abstract: The solar corona is a tenuous outer atmosphere of the Sun. Its million-degree temperature was discovered spectroscopically in the 1940s, but its origin has been debated since then without complete ...

11

Joule heating and anomalous resistivity in the solar corona

Joule heating and anomalous resistivity in the solar corona

... Joule heating of the solar ...Joule heating associated with the observed ...large-scale coronal magnetic ...the coronal plasma, and could show a preference for one sign of the current ...

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On ion-cyclotron-resonance heating of the corona and solar wind

On ion-cyclotron-resonance heating of the corona and solar wind

... the corona is presented with emphasis on key numerical re- sults, remote-sensing and in situ observations and unresolved ...the solar corona, requires ki- netic ...the coronal plasma ...the ...

12

The heating of solar coronal loops by Alfvèn wave turbulence

The heating of solar coronal loops by Alfvèn wave turbulence

... the heating of coronal loops by Alfv´ en wave turbulence ...The heating rates vary strongly in space and time, but the simulated heating events have durations less than 1 minute and are ...

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A cancellation nanoflare model for solar chromospheric and coronal heating

A cancellation nanoflare model for solar chromospheric and coronal heating

... The third role for d 0 is that, when the overlying fi eld is horizontal, the height reached by the fi eld lines that link to the reconnection site varies between 1.4 d 0 when reconnection starts and 1.5 d 0 when the ...

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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

... INTERPLANETARY CORONAL MASS EJECTIONS AND FLARE IN THE Department of Physics & Research Centre, Women’s Christian College, Nagercoil, 629 001, India Interplanetary Coronal Mass Ejections (ICMEs) are the ...

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MHD turbulence and heating of the open field-line solar corona

MHD turbulence and heating of the open field-line solar corona

... the corona without major dissipation in coronal holes, smaller loops contained in the corona can reflect injected waves back and forth at the photospheric boundary, thus naturally producing ...

8

Heating of the solar corona by Alfvén waves self-induced opacity

Heating of the solar corona by Alfvén waves self-induced opacity

... the corona as a self-induced opacity of high-frequency Alfv´en waves ...the solar corona belongs to Alfv´en, we simply solved the corresponding MHD ...
Observations and numerical models of solar coronal heating associated with spicules

Observations and numerical models of solar coronal heating associated with spicules

... the corona, as well as plasma heating through dissipation of electrical currents and magnetic ...new coronal loop strands, thus locally contributing to the mass and energy balance of the ...of ...

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Magnetic Untwisting in Solar Jets that Go into the Outer Corona in Polar Coronal Holes

Magnetic Untwisting in Solar Jets that Go into the Outer Corona in Polar Coronal Holes

... Figure 14 is our schematic of the magnetic‐untwisting wave and jet outflow when they have entered the LASCO/C2 field of view beyond the edge of the C2 occulting‐disk mask at 2.2 R sun . We think that at this stage the ...

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Solar coronal heating by short-wavelength dispersive shear Alfvén waves

Solar coronal heating by short-wavelength dispersive shear Alfvén waves

... electron heating caused by short-wavelength SWDSA waves that are generated due to nano-flares in the solar corona and in fast solar ...electron heating in collisionless solar ...

5

MHD simulation of the evolution of shock structures in the solar corona: implications for coronal shock acceleration

MHD simulation of the evolution of shock structures in the solar corona: implications for coronal shock acceleration

... minimum-like corona caused by an erupting coronal mass ejection ...on coronal field lines occurs even for simple coronal ...evolving coronal shock employing a simplified shock model, we ...

8

Solar coronal electron heating by short wavelength dispersive shear Alfvén waves

Solar coronal electron heating by short wavelength dispersive shear Alfvén waves

... electron heating caused by short-wavelength SWDSA waves that are generated due to nano- fl ares in the solar corona and in fast solar ...electron heating in collisionless solar ...

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