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A dynamical model for the chromosphere-corona transition region

โœ Scribed by Claudio Chiuderi; Iacopo Riani

Publisher
Springer
Year
1974
Tongue
English
Weight
596 KB
Volume
34
Category
Article
ISSN
0038-0938

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โœฆ Synopsis

A dynamical, homogeneous model of the chromosphere-corona transition region and of the lower corona is presented, based on the hydrodynamical equations and on a semi-empirical relation deduced from radio observations. The model is shown to be in agreement with radio and UV observations and with the particle flax given by solar wind measurements. A comparison with the analogous static model shows that dynamical effects are very small.

From the model it is possible to give an estimate of the energy dissipated at each level by the waves that propagate in the solar atmosphere. It is shown that this energy source cannot be neglected with comparison to the usual conductive, convective and radiative sources. The importance of the kinetic energy flux connected with the spicules is also discussed.

๐Ÿ“œ SIMILAR VOLUMES

A model for the chromosphere-corona tran
A model for the chromosphere-corona transition region based on radio observations and on hydrodynamical conservation equations
โœ P. Lantos ๐Ÿ“‚ Article ๐Ÿ“… 1972 ๐Ÿ› Springer ๐ŸŒ English โš– 727 KB

In order to avoid the disagreements and difficulties now found in the interpretation of quiet-Sun UV observations concerning the chromosphere-corona transition region, 6-and ll-cm maps obtained at cycle maximum with the Nanqay radiotelescope are used in combination with existing measurements of the

On the origin of spicules in the chromos
On the origin of spicules in the chromosphere-corona transition region
โœ Max Kuperus; R. Grant Athay ๐Ÿ“‚ Article ๐Ÿ“… 1967 ๐Ÿ› Springer ๐ŸŒ English โš– 610 KB

Qualitative arguments are presented to show that in the chromosphere-corona transition region the energy which is transported downwards by heat conduction cannot be disposed of by radiative losses only. The region therefore is unstable and forced to be in motion, which may give rise to spicule-like