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Improved Three-Dimensional Mapping of the Electron Density Distribution of theSolar Corona

机译：改进的太阳电晕电子密度分布的三维映射

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Three-dimensional maps of the distribution of coronal electron density can now becomputed with two radial functions in the series expansion for the density (rather than with only one radial function as shown in the previous paper). With the improved maps the authors can determine the topological variation of the electron density with radial distance, and thus can (1) distinguish coronal condensations from coronal streamers, (2) trace the structure of a streamer as a function of height, and (3) determine the non-radial orientation of a streamer. The authors summarize the previous work in concise mathematical notation, show examples of the improved maps derived from two radial functions, and discuss in detail the expectations and limitations of the method. Of great utility are computer-simulated pictures showing the solar corona as it would appear if viewed from above the north (or south) pole.

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