On the intensity of helium and hydrogen lines in quiescent prominences with filamentary structure
โ Scribed by N. N. Morozhenko
- Publisher
- Springer
- Year
- 1974
- Tongue
- English
- Weight
- 574 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0038-0938
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โฆ Synopsis
Diffuse penetration of ionizing radiation into prominences with filamentary structure is considered. The equations of radiative transfer, ionization balance and steady state of the triplet system of the helium atom (with 27 levels and continuum) are solved for a chosen model of prominence. The calculated intensity ratios of helium and hydrogen lines for prominences of various brightness are compared with observations. Parameters of filamentary structure of prominences which are in a good agreement with observations are given.
๐ SIMILAR VOLUMES
We introduce the combination technique for the numerical solution of ddimensional eigenproblems on sparse grids. Here, O(d โข (log N ) d-1 ) different problems, each of size O(N ), have to be solved independently. This is in contrast to the one problem of size O(N d ) for a conventional finite elemen