Semi-empirical models of a quiescent prominence

Details Semi-empirical models of a quiescent prominence Semi-empirical models of a quiescent prominence

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...175..277z&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 175, no. 1-2, March 1987, p. 277-281. Research supported by the Chinese Academ

Astronomy and Astrophysics

Astrophysics

9

Radiative Transfer, Semiempirical Equations, Solar Prominences, Stellar Models, Calcium, H Lines, Hydrogen, Hydrostatics, Line Spectra

Scientific paper

In the paper semi-empirical quiescent prominence models which satisfy the constraints of the radiative transfer equation, hydrostatic and statistical equilibrium are proposed. The atom is assumed to have five levels plus one continuum for hydrogen as well as for ionized calcium. The models reproduce well the observed Hα, Hβ, Ca II H and K line profiles. The results indicate that the temperature from the outer layer to the centre of the prominence decreases and the source functions of Hα, Hβ, Hγ, Ca II H and K lines increase. By computing radiation losses, it is found that the radiative loss due to hydrogen is much larger than that due to ionized calcium.

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