Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...196..269p&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 196, no. 1-2, May 1988, p. 269-276.
Astronomy and Astrophysics
Astrophysics
4
Line Spectra, Solar Atmosphere, Solar Corona, Solar Limb, Surface Temperature, Chromosphere, Surface Roughness
Scientific paper
The effect of roughness of the emitting layers is computed in the case where the optical depth is small, both in cases of resolved structures and of unresolved structures. The geometry of the emitting layers is schematized by parameters, mostly the "angle" representative of the "grooves" or of the "spikes", and the ratio between the optical depth of the "valleys" and of the "hills". The effect of these various parameters on the center-to-limb behaviour of computed spectral lines is discussed. The method for determining these parameters from the observed data is outlined; examples will be given in forthcoming publications.
Dumont Serge
Mouradian Zadig
Pecker Jean Claude
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