On the intensity of helium and hydrogen lines in quiescent prominences with filamentary structure

Details On the intensity of helium and hydrogen lines in quiescent prominences with filamentary structure On the intensity of helium and hydrogen lines in quiescent prominences with filamentary structure

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974soph...39..349m&link_type=abstract

Solar Physics, vol. 39, Dec. 1974, p. 349-362.

Physics

9

Fine Structure, Line Spectra, Luminous Intensity, Solar Prominences, Solar Spectra, Gas Ionization, H Lines, Helium, Ionizing Radiation, Radiative Transfer, Solar Activity

Scientific paper

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 prominence model. 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 good agreement with observations are given.

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