Guo, Y.; Ding, M. D.; Liu, Y.; Sun, X. D.; DeRosa, M. L.; Wiegelmann, T.: Modeling Magnetic Field Structure of a Solar Active Region Corona Using Nonlinear Force-Free Fields in Spherical Geometry. Astrophysical Journal 760 (1), 47 (2012)
Jing, J.; Park, S.-H.; Liu, C.; Lee, J.; Wiegelmann, T.; Xu, Y.; Deng, N.; Wang, H.: Evolution of Relative Magnetic Helicity and Current Helicity in NOAA Active Region 11158. Astrophysical Journal 752, L9 (2012)
Martens, P. C. H.; Attrill, G. D. R.; Davey, A. R.; Engell, A.; Farid, S.; Grigis, P. C.; Kasper, J.; Korreck, K.; Saar, S. H.; Savcheva, A.et al.; Su, Y.; Testa, P.; Wills-Davey, M.; Bernasconi, P. N.; Raouafi, N.-E.; Delouille, V. A.; Hochedez, J. F.; Cirtain, J. W.; Deforest, C. E.; Angryk, R. A.; de Moortel, I.; Wiegelmann, T.; Georgoulis, M. K.; McAteer, R. T. J.; Timmons, R. P.: Computer Vision for the Solar Dynamics Observatory (SDO). Solar Physics 275, pp. 79 - 113 (2012)
Nickeler, D. H.; Wiegelmann, T.: Relation between current sheets and vortex sheets in stationary incompressible MHD. Annales Geophysicae 30, pp. 545 - 555 (2012)
Nindos, A.; Patsourakos, S.; Wiegelmann, T.: On the Role of the Background Overlying Magnetic Field in Solar Eruptions. Astrophysical Journal 748, L6 (2012)
Sun, X.; Hoeksema, J. T.; Liu, Y.; Wiegelmann, T.; Hayashi, K.; Chen, Q.; Thalmann, J.: Evolution of Magnetic Field and Energy in a Major Eruptive Active Region Based on SDO/HMI Observation. Astrophysical Journal 748, pp. 77 - 92 (2012)
Tadesse, T.; Wiegelmann, T.; Inhester, B.; Pevtsov, A.: Magnetic Connectivity Between Active Regions 10987, 10988, and 10989 by Means of Nonlinear Force-Free Field Extrapolation. Solar Physics 277, pp. 119 - 130 (2012)
Tadesse, T.; Wiegelmann, T.; Inhester, B.; Pevtsov, A.: Coronal Magnetic Field Structure and Evolution for Flaring AR 11117 and Its Surroundings. Solar Physics 281, pp. 53 - 65 (2012)
Thalmann, J. K.; Pietarila, A.; Sun, X.; Wiegelmann, T.: Nonlinear Force-free Field Modeling of a Solar Active Region Using SDO/HMI and SOLIS/VSM Data. Astronomical Journal 144, 33 (2012)
Wiegelmann, T.; Thalmann, J. K.; Inhester, B.; Tadesse, T.; Sun, X.; Hoeksema, J. T.: How Should One Optimize Nonlinear Force-Free Coronal Magnetic Field Extrapolations from SDO/HMI Vector Magnetograms? Solar Physics 281, pp. 37 - 51 (2012)
Fuhrmann, M.; Seehafer, N.; Valori, G.; Wiegelmann, T.: A comparison of preprocessing methods for solar force-free magnetic field extrapolation. Astronomy and Astrophysics 526, A70, pp. 1 - 12 (2011)
Yelles Chaouche, L.; Moreno-Insertis, F.; Martínez Pillet, V.; Wiegelmann, T.; Bonet, J. A.; Knölker, M.; Bellot Rubio, L. R.; del Toro Iniesta, J. C.; Barthol, P.; Gandorfer, A.et al.; Schmidt, W.; Solanki, S. K.: Mesogranulation and the Solar Surface Magnetic Field Distribution. Astrophysical Journal 727, L30 (2011)
Cheng, X.; Ding, M. D.; Guo, Y.; Zhang, J.; Jing, J.; Wiegelmann, T.: Re-flaring of a Post-flare Loop System Driven by Flux Rope Emergence and Twisting. Astrophysical Journal 716, pp. L68 - L73 (2010)
Guo, Y.; Ding, M. D.; Schmieder, B.; Li, H.; Török, T.; Wiegelmann, T.: Driving Mechanism and Onset Condition of a Confined Eruption. Astrophysical Journal 725, pp. L38 - L42 (2010)
Various application review phases in 2025. PhD projects in cosmochemistry, planetary science, solar and stellar physics, helioseismology, asteroseismology, ...
Solar Orbiter is the first space probe to look at the Sun's poles – and finds the magnetic field there in a state of turmoil. The Sun's magnetic field is currently undergoing a flip.
First Light! The spectro-polarimeter of the world's largest solar telescope in Hawaii looks at the Sun for the first time. The instrument was developed in Germany.
Analyzing the high spatial resolution solar Ca II H and K emission data obtained by the SUNRISE mission and building a model of other stars more active than the Sun
Dr. Theodosios Chatzistergos receives award by the European Space Weather and Space Climate Association for his research findings on the historical activity of the Sun.