16 citations · 56 across the 9 of their papers we have counts for
9 papers
Average solar active region: I. Intensities, velocities, and the photospheric magnetic field
M. Švanda, J. Jurčák, M. Schmassmann
Context: Solar active regions (ARs) are key manifestations of the Sun's magnetic activity, displaying diverse spatial and temporal characteristics. Their formation and evolution pl…
Flare heating of the chromosphere: Observations of flare continuum from GREGOR and IRIS
M. García-Rivas, J. Kašparová, A. Berlicki +8
Context: On 2022 May 4, an M5.7 flare erupted in the active region NOAA 13004, which was the target of a coordinated campaign between GREGOR, IRIS, Hinode, and ground-based instrum…
Modelling of Geomagnetically Induced Currents in the Czech Transmission Grid
Michal Švanda, Anna Smičková, Tatiana Výbošťoková
We investigate the maximum expected magnitudes of the geomagnetically induced currents (GICs) in the Czech transmission power network. We compute a model utilising the Lehtinen-Pir…
One-sided arc averaging geometries in time-distance local helioseismology
David Korda, Michal Švanda, Thierry Roudier
The study of solar oscillations (helioseismology) has been a very successful method of researching the Sun. Helioseismology teaches us about the structure and mean properties of th…
Photospheric downflows observed with SDO/HMI, HINODE, and an MHD simulation
T. Roudier, M. Švanda, J. M. Malherbe +3
Downflows on the solar surface are suspected to play a major role in the dynamics of the convection zone. We investigate the existence of the long-lasting downflows whose effects i…
IRIS observations of chromospheric heating by acoustic waves in solar quiet and active regions
V. Abbasvand, M. Sobotka, M. Švanda +3
Aims: To study the heating of solar chromospheric magnetic and nonmagnetic regions by acoustic and magnetoacoustic waves, the deposited acoustic-energy flux derived from observatio…