27 citations · 74 across the 8 of their papers we have counts for
5 papers · 1 filter
Large-scale horizontal flows in the solar photosphere. IV. On the vertical structure of large-scale horizontal flows
Michal Svanda, Mirek Klvana, Michal Sobotka +2
In the recent papers, we introduced a method utilised to measure the flow field. The method is based on the tracking of supergranular structures. We did not precisely know, whether…
Tracking of supergranules - Does it make any sense?
M. Svanda, M. Klvana, M. Sobotka
The motions of the plasma and structures in and below the solar photosphere is not well understood. The results obtained using various methods cannot be in general considered as co…
Large-scale horizontal flows in the solar photosphere II: Long-term behaviour and magnetic activity response
Michal Svanda, Mirek Klvana, Michal Sobotka +1
Recently, we have developed a method useful for mapping large-scale horizontal velocity fields in the solar photosphere. The method was developed, tuned and calibrated using the sy…
GREGOR: the New German Solar Telescope
H. Balthasar, O. von der Lühe, F. Kneer +17
GREGOR is a new open solar telescope with an aperture of 1.5m. It replaces the former 45-cm Gregory Coude telescope on the Canary island Tenerife. The optical concept is that of a…
Large-scale horizontal flows in the solar photosphere I: Method and tests on synthetic data
M. Svanda, M. Klvana, M. Sobotka
We propose a useful method for mapping large-scale velocity fields in the solar photosphere. It is based on the local correlation tracking algorithm when tracing supergranules in f…