Observations of the Sun at Vacuum-Ultraviolet Wavelengths from Space. Part II: Results and Interpretations |
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Authors: | Klaus Wilhelm Eckart Marsch Bhola N Dwivedi Uri Feldman |
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Institution: | (1) Max-Planck-Institut für Sonnensystemforschung (MPS), Max-Planck-Str. 2, 37191 Katlenburg-Lindau, Germany;(2) Department of Applied Physics, Institute of Technology, Banaras Hindu University, Varanasi, 221005, India;(3) Artep Inc., 2922 Excelsior Spring Ct., Ellicott City, MA 21042, USA;(4) E.O. Hulburt Center for Space Research, Naval Research Laboratory (NRL), Washington, DC 20375-5352, USA |
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Abstract: | In Part I of this review, the concepts of solar vacuum-ultraviolet (VUV) observations were outlined together with a discussion
of the space instrumentation used for the investigations. A section on spectroradiometry provided some quantitative results
on the solar VUV radiation without considering any details of the solar phenomena leading to the radiation. Here, in Part
II, we present solar VUV observations over the last decades and their interpretations in terms of the plasma processes and
the parameters of the solar atmosphere, with emphasis on the spatial and thermal structures of the chromosphere, transition
region and corona of the quiet Sun. In addition, observations of active regions, solar flares and prominences are included
as well as of small-scale events. Special sections are devoted to the elemental composition of the solar atmosphere and theoretical
considerations on the heating of the corona and the generation of the solar wind. |
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Keywords: | Solar VUV— observations and interpretations Solar atmosphere Solar plasma processes and parameters |
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