58 citations · 194 across the 12 of their papers we have counts for
Showing 2020Show all
2 papers · 1 filter
astro-ph.SR2020★ 55 cited
Analysis of full disc Ca II K spectroheliograms III. Plage area composite series covering 1892-2019
Theodosios Chatzistergos, Ilaria Ermolli, Natalie A. Krivova +16
We derive the plage area evolution over the last 12 solar cycles employing data from all Ca II K archives available publicly in digital form known to us, including several as yet u…
astro-ph.SR2020★ 32 cited
Magnetohydrodynamic Non-linearities in Sunspot Atmospheres: Chromospheric Detections of Intermediate Shocks
S. J. Houston, D. B. Jess, R. Keppens +8
The formation of shocks within the solar atmosphere remains one of the few observable signatures of energy dissipation arising from the plethora of magnetohydrodynamic waves genera…