Physics
Scientific paper
Nov 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975soph...45..147w&link_type=abstract
Solar Physics, vol. 45, Nov. 1975, p. 147-155.
Physics
1
Atomic Excitations, Line Spectra, Solar Corona, Solar Eclipses, Solar Spectra, Iron, Light (Visible Radiation), Radiant Flux Density, Spectral Emission, Tables (Data)
Scientific paper
The relation between the intensities of the 5303-A line and that of the nearby continuum has been investigated during the solar eclipse of March 7, 1970. As this relation depends on the local structure of the corona, spectrograms have been taken at 16 different position angles. For the present investigation, four spectrograms have been selected that show the 5303-A line up to 2 solar radii. For distances exceeding 1.8 solar radii, the ratio of line- to continuum-intensity, Q, becomes constant. This is the region where excitation by radiation dominates. Towards smaller distances, Q increases as excitation by collisions becomes more and more important. At a distance of 1.3 solar radii, the contributions from both mechanisms are equal. For distances less than 1.3 solar radii Q increases more strongly than expected for an isothermal and homogeneous model. In the innermost corona, the observed values are twice as high as the theoretical ones. This difference can be accounted for by inhomogeneities of the corona.
No associations
LandOfFree
The excitation of the coronal line 5303 A does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The excitation of the coronal line 5303 A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The excitation of the coronal line 5303 A will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1377834