Liu, Y.; Welsch, B. T.; Valori, G.; Georgoulis, M. K.; Guo, Y.; Pariat, E.; Park, S.-H.; Thalmann, J. K.: Changes of Magnetic Energy and Helicity in Solar Active Regions from Major Flares. The Astrophysical Journal 942, p. 27 (2023)
Sun, X.; Hoeksema, J. T.; Liu, Y.; Wiegelmann, T.; Hayashi, K.; Chen, Q.; Thalmann, J.: Erratum: “Evolution of Magnetic Field and Energy in a Major Eruptive Active Region Based on Sdo/Hmi Observation” (vol 748, 77, 2012). Astrophysical Journal 828 (1), 65 (2016)
Thalmann, J. K.; Tiwari, S. K.; Wiegelmann, T.: Force-free Field Modeling of Twist and Braiding-induced Magnetic Energy in an Active-region Corona. Astrophysical Journal 780 (1), 102 (2014)
Schmieder, B.; Guo, Y.; Moreno-Insertis, F.; Aulanier, G.; Yelles Chaouche, L.; Nishizuka, N.; Harra, L. K.; Thalmann, J. K.; Vargas Dominguez, S.; Liu, Y.: Twisting solar coronal jet launched at the boundary of an active region. Astronomy and Astrophysics 559, A1 (2013)
Thalmann, J. K.; Tiwari, S. K.; Wiegelmann, T.: Comparison of force-free coronal magnetic field modeling using vector fields from Hinode and Solar Dynamics Observatory. Astrophysical Journal 769, pp. 59 - 68 (2013)
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)
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)
DeRosa, M. L.; Schrijver, C. J.; Barnes, G.; Leka, K. D.; Lites, B. W.; Aschwanden, M. J.; Amari, T.; Canou, A.; McTiernan, J. M.; Régnier, S.et al.; Thalmann, J. K.; Valori, G.; Wheatland, M. S.; Wiegelmann, T.; Cheung, M. C. M.; Conlon, P. A.; Fuhrmann, M.; Inhester, B.; Tadesse, T.: A Critical Assessment of Nonlinear Force-Free Field Modeling of the Solar Corona for Active Region 10953. Astrophysical Journal 696, pp. 1780 - 1791 (2009)
Schrijver, C. J.; Derosa, M. L.; Barnes, G.; Lites, B.; Tarbell, T.; McTiernan, J.; Valori, G.; Wiegelmann, T.; Wheatland, M. S.; Amari, T.et al.; Demoulin, P.; Fuhrmann, M.; Kusano, K.; Regnier, S.; Thalmann, J. K.: Nonlinear force-free field modeling of a solar active region around the time of a major flare and coronal mass ejection. Astrophysical Journal 675, pp. 1637 - 1644 (2008)
Thalmann, J. K.; Wiegelmann, T.: Evolution of the flaring active region NOAA 10540 as a sequence of nonlinear force-free field extrapolations. Astronomy and Astrophysics 484, pp. 495 - 502 (2008)
Thalmann, J. K.; Wiegelmann, T.; Raouafi, N.-E.: First nonlinear force-free field extrapolations of SOLIS/VSM data. Astronomy and Astrophysics 488, pp. L71 - L74 (2008)
Wiegelmann, T.; Thalmann, J. K.; Schrijver, C. J.; DeRosa, M. L.; Metcalf, T. R.: Can We Improve the Preprocessing of Photospheric Vector Magnetograms by the Inclusion of Chromospheric Observations? Solar Physics 247, pp. 249 - 267 (2008)
Vršnak, B.; Veronig, A. M.; Thalmann, J. K.; Zic, T.: Large amplitude oscillatory motion along a solar filament. Astronomy and Astrophysics 471 (1), pp. 295 - 299 (2007)
The Planetary Plasma Environments group (PPE) has a strong heritage in the exploration of planetary magnetospheres and space plasma interactions throughout the solar system. It has contributed instruments to several past missions that flew-by or orbited Jupiter (Galileo, Cassini, Ulysses). The PPE participates in the JUICE mission by contributing hardware and scientific expertise to the Particle Environment Package (PEP).
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
The magnetic field in the solar atmosphere exceeds the geomagnetic field strength by four orders of magnitude. It greatly influences the processes of energy transport within the solar atmosphere, and dominates the morphology of the solar chromosphere and corona. Kinetic energy from convective motions in the Sun can be efficiently stored in magnetic fields and subsequently released - to heat the solar corona to several million degrees or to blast off coronal mass ejections.