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Butala et al. 2005
Butala, M.D., Frazin, R.A. and Kamalabadi, F. (2005). Three-dimensional estimates of the coronal electron density at times of extreme solar activity. Journal of Geophysical Research 110: doi: 10.1029/2004JA010938. issn: 0148-0227.

This paper presents quantitative three-dimensional (3-D) reconstructions of the electron density (Ne) in the solar corona between 1.14 and 2.7 solar radii (R$odot$) formed from polarized brightness (pB) measurements made by the Mauna Loa Solar Observatory Mark-IV (Mk4) K-coronameter at the time of the extreme solar events of October and November 2003. The 3-D reconstructions are made by a process called solar rotational tomography that exploits the view angles provided by solar rotation during a 2-week period. Although this method is incapable of resolving dynamic evolution on timescales of less than about 2 weeks, a qualitative comparison of the reconstructions to instantaneous Extreme ultraviolet Imaging Telescope images (EIT) shows good agreement between coronal holes, active regions, and quiet Sun structures on the disk and their counterparts in the corona at 1.2 R$odot$.

BACKGROUND DATA FILES

Abstract

Keywords
Solar Physics, Astrophysics, and Astronomy, Corona, Solar Physics, Astrophysics, and Astronomy, Coronal holes, Radio Science, Tomography and imaging (7270, 8180), Solar Physics, Astrophysics, and Astronomy, Instruments and techniques, tomography, electron density, solar corona, coronagraph, image reconstruction
Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/
Publisher
American Geophysical Union
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