240 citations · 2.8k across the 79 of their papers we have counts for
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Active Region Photospheric Magnetic Properties Derived from Line-of-sight and Radial Fields
Jordan A. Guerra, Sung-H. Park, Ioannis Kontogiannis +3
The effect of using two representations of the normal-to-surface magnetic field to calculate photospheric measures that are related to active region (AR) potential for flaring is p…
Non-neutralized electric currents in solar active regions and flare productivity
Ioannis Kontogiannis, Manolis K. Georgoulis, Sung-Hong Park +1
We explore the association of non-neutralized currents with solar flare occurrence in a sizable sample of observations, aiming to show the potential of such currents in solar flare…
A Helicity-Based Method to Infer the CME Magnetic Field Magnitude in Sun and Geospace: Generalization and Extension to Sun-Like and M-Dwarf Stars and Implications for Exoplanet Habitability
S. Patsourakos, M. K. Georgoulis
Patsourakos et al. (Astrophys. J. 817, 14, 2016) and Patsourakos and Georgoulis (Astron. Astrophys. 595, A121, 2016) introduced a method to infer the axial magnetic field in flux-r…
Magnetic Helicity Estimations in Models and Observations of the Solar Magnetic Field. Part III: Twist Number Method
Y. Guo, E. Pariat, G. Valori +7
We study the writhe, twist and magnetic helicity of different magnetic flux ropes, based on models of the solar coronal magnetic field structure. These include an analytical force-…