Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988japa....9...41d&link_type=abstract
Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 9, March 1988, p. 41-47.
Astronomy and Astrophysics
Astrophysics
9
Emission Spectra, Line Spectra, Solar Corona, Solar Eclipses, Iron, Velocity Distribution, Visible Spectrum
Scientific paper
Using the line profiles of forbidden Fe x 6374 A and Fe XIV 5303 A emission lines observed during five total solar eclipses, the problem whether the solar corona is static or contains moving features is addressed. Many of the profiles of both emission lines have complicated shapes, which is interpreted as an evidence for the existence of many, small, moving features in the corona. The line-of-sight velocities observed by other investigators such as Desai et al., 1982 also supported this view. On the other hand, about 15 recent interferometric and multislit investigations of coronal emission lines have not shown evidence of moving elements. It is suggested that this is due to insufficient spatial resolution.
Delone A. B.
Iakunina G. V.
Makarova E. A.
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