54 citations · 195 across the 12 of their papers we have counts for
8 papers · 1 filter
An analysis of the solar differential rotation in solar cycle No. 19 (1954-1964) determined using Kanzelhoehe sunspot group positions
Ivana Poljancic Beljan, Luka Sibenik, Tomislav Jurkic +7
We study solar differential rotation (DR) for solar cycle No. 19 (1954-1964) by tracing sunspot groups on the sunspot drawings of Kanzelhoehe Observatory for Solar and Environmenta…
Maximal growth rate of the ascending phase of a sunspot cycle for predicting its amplitude
Tatiana Podladchikova, Shantanu Jain, Astrid M. Veronig +4
Forecasting the solar cycle amplitude is important for a better understanding of the solar dynamo as well as for many space weather applications. We demonstrated a steady relations…
Variation in solar differential rotation and activity in the period 1964-2016 determined by the Kanzelhöhe data set
I. Poljančić Beljan, R. Jurdana-Šepić, T. Jurkić +8
We determined the differential rotation (DR) parameters and (corresponding to the equatorial rotation velocity and the gradient of the solar DR) by tracing sunspot groups i…
Meridional Motions and Reynolds Stress Determined by Using Kanzelhöhe Drawings and White Light Solar Images from 1964 to 2016
Domagoj Ruždjak, Davor Sudar, Roman Brajša +6
Sunspot position data obtained from Kanzelhöhe Observatory for Solar and Environmental Research (KSO) sunspot drawings and white light images in the period 1964 to 2016 were used t…
Statistical Properties of Ribbon Evolution and Reconnection Electric Fields in Eruptive and Confined Flares
Jürgen Hinterreiter, Astrid M. Veronig, Julia K. Thalmann +2
A statistical study of the chromospheric ribbon evolution in H two-ribbon flares is performed. The data set consists of 50 confined () and eruptive () flares tha…
Reconnection fluxes in eruptive and confined flares and implications for superflares on the Sun
Johannes Tschernitz, Astrid M. Veronig, Julia K. Thalmann +2
We study the energy release process of a set of 51 flares (32 confined, 19 eruptive) ranging from GOES class B3 to X17. We use H filtergrams from Kanzelhöhe Observatory together…
Ground-based Observations of the Solar Sources of Space Weather (Invited Review)
Astrid M. Veronig, Werner Pötzi
Monitoring of the Sun and its activity is a task of growing importance in the frame of space weather research and awareness. Major space weather disturbances at Earth have their or…
Multiwavelength imaging and spectroscopy of chromospheric evaporation in an M-class solar flare
A. M. Veronig, J. Rybak, P. Gömöry +6
We study spectroscopic observations of chromospheric evaporation mass flows in comparison to the energy input by electron beams derived from hard X-ray data for the white-light M2.…