Physics
Scientific paper
Dec 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980soph...68..237k&link_type=abstract
Solar Physics, vol. 68, Dec. 1980, p. 237-242.
Physics
2
Chromosphere, Solar Atmosphere, Solar Granulation, Solar Spectra, Autocorrelation, Brightness, D Lines, H Alpha Line, H Beta Line, K Lines, Power Spectra, Radial Velocity, Sodium, Solar Activity, Spectrum Analysis, Vanadium
Scientific paper
A statistical analysis is presented of observations of the large-scale brightness fluctuations in the solar chromosphere. Spectroscopic observations in the H alpha, H beta, Ca II K, Na I D1 and D2, Fe I 4383.6-A, CH 4377.2- and 4378.3-A and V I 4379.2-A lines in different regions of the central zone of the disk obtained during the solar activity minimum in October 1976 are analyzed to obtain the autocorrelation function and power spectrum. The chromospheric brightness distribution is found to be essentially bimodal, with characteristic scales of 12,000 and 24,000 km. Supergranulation in the brightness field, with a characteristic scale of 35,000 km, is found to appear more faintly at all heights. Finally, it is concluded that the two chromospheric large structures have the same scales at all chromospheric levels, whereas the scale of the supergranulation may be associated with the radial velocity distribution.
Krat V. A.
Makarov Valentin I.
Tavastsherna K. S.
No associations
LandOfFree
On the large scale brightness fluctuations in the solar atmosphere 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 On the large scale brightness fluctuations in the solar atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the large scale brightness fluctuations in the solar atmosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-758148