261 citations · 1.6k across the 44 of their papers we have counts for
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astro-ph2008
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…
astro-ph2008
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…