Two-dimensional distributions of physical parameters in the prominence of 1984 March 23 |
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| Institution: | 1. Institute of Astronomy and National Astronomical Observatory, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee Blvd. 1784, Sofia, Bulgaria;2. Space Research and Technology Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., 1113 Sofia, Bulgaria;1. Institute of Solar-Terrestrial Physics SB RAS, Irkutsk, Russia;2. V.E. Zuev Institute of Atmospheric Optics, Tomsk, Russia;3. Irkutsk State University, Russia;1. Solar Physics Division Space Research Centre, Polish Academy of Sciences, Bartycka 18A, 00-716 Warsaw, Poland;2. Astronomical Institute, University of Wroclaw, Kopernika 11, 51-622 Wroclaw, Poland |
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| Abstract: | The spectral lines Hα Hβ and CaII K of a quiescent prominence are studied using the completely linearized model. The physical parameters (Te, vt, NH) at several locations are obtained. Itis shown: (1) Near the axis of the prominence, kinetic temperature and hydrogen density decrease, while microturbulent velocity increases, with increasing height. (2) Near the edge, the kinetic temperature does not vary with height; but it increases from the center to the edge. (3) Hydrostatic equilibrium does not hold in prominences, and magnetic field plays an important role in supporting them. |
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