chromosphere

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Words related to chromosphere

a gaseous layer of the sun's atmosphere (extending from the photosphere to the corona) that is visible during a total eclipse of the sun

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References in periodicals archive ?
Gas pressure can simply account for the spatial extend of the chromosphere in condensed solar models [35,39].
Currently, it is well established that the dimensions of the chromosphere are perceived as vastly different, whether it is studied in H[alpha], or using the HeII line at 30.
The prolate nature of the chromosphere and the extended structure which the Sun manifests above the polar axis cannot be easily explained by the gaseous models.
In this respect, the solar chromosphere has been advanced as a site of hydrogen recondensation in the solar atmosphere (see [section]5.
4, it was proposed [59] that the H[alpha] emission is the direct result of the recondensation of atomic hydrogen, delivered by molecular hydrogen, onto larger condensed hydrogen structures, CHS, within the chromosphere.
Conversely, the position is now adopted that the presence of a continuous spectrum in the visible range within the chromosphere [15-18] represents a direct manifestation of condensed matter in this region of the solar atmosphere.
The chromosphere corresponds to a region of the Sun where hydrogen atoms are re-entering the condensed state, prior to their recombination with photospheric material.
Nonetheless, though the continuous spectrum of the chromosphere re mains weak, it demonstrates the presence of condensed matter within a gaseous matrix, much like drops of water can exist within the gaseous atmosphere of the Earth.
The Solar Chromosphere and Corona: Quiet Sun - Astrophysics and Space Science Library - v.
The quiet-Sun low chromosphere at moderate resolution.
The author has already addressed the chromosphere in detail, as a region of hydrogenre-condensation, superimposed on the corona in the lower portion of the solar atmosphere [28,29].
The tremendous height, 5 000 to 10 000 km, of the chromosphere has posed a longstanding problem for the gaseous models of the Sun [3, p, 140-142].
Furthermore, unlike the case with the gaseous Sun, the chromosphere can now be easily supported using gas pressure.
The author has already suggested that the chromosphere is a region of hydrogen recondensation where hydrides play an important role [28,29].
Rather than a chaotic assembly of gaseous plasma, the chromosphere and corona become the site of both structure and function in the Sun.