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Secular variations in the solar corona shape according to observations during a solar activity minimum epoch
A. G. Tlatov
Analysis of the solar corona structure during the periods of minimum solar activity from 1867 till 2006 has been carried out. A new flattening index for the large coronal streamers…
On the potential value of Ca II K spectroheliogram time-series for solar activity and irradiance studies
I. Ermolli, S. K. Solanki, A. G. Tlatov +3
Various observatories around the globe started regular full-disk imaging of the solar atmosphere in the Ca II K line since the early decades of the 20th century. The archives made…
Some notes concerning the prediction of the amplitude of the two solar activity cycles
A. G. Tlatov
The parameter G, which is determined from the general number of sunspots groups Ng according to the daily observations G=Sum(1/Ng)^2, is offered. This parameter is calculated for t…
IX Russian-Finnish Symposium on Radio Astronomy "Multi-wavelength investigations of solar and stellar activity and active galactic nuclei"
V. E. Abramov-Maximov, T. G. Arshakian, V. M. Bogod +33
The IX Russian-Finnish Symposium on Radio Astronomy was held in Special astrophysical observatory RAS in Nizhnij Arkhyz, Russia on 15-20 October 2006. It was dedicated to the two-s…