Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...183..351h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 183, no. 2, Sept. 1987, p. 351-362. CNRS-supported research.
Astronomy and Astrophysics
Astrophysics
54
Frequency Distribution, Hydrogen, Solar Prominences, Solar Spectra, Stellar Models, Boundary Value Problems, Emission Spectra, Line Shape, Lyman Alpha Radiation
Scientific paper
One-dimensional isothermal-isobaric static slab models are used to study departures from complete frequency redistribution (CRD) in hydrogen lines for quiescent solar prominences. Partial redistribution (PRD) effects on the hydrogen L-alpha line are shown to be significant in the near wings in addition to the far wings of L-alpha. It is suggested that strong symmetrical peaks found in the theoretical PRD L-alpha profiles are due to partially coherent penetration of the incidence double-peaked solar L-alpha. The present results are found to be consistent with OSO-8/LPSP observations and with UVSP/SMM data. The possible interplay between the effects of lateral transport or radiation, level-interlocking, and PRD is considered.
Gouttebroze Pierre
Heinzel Petr
Vial Jean-Claude
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