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).
Application deadline 1 October 2024. PhD projects in planetary science, solar and stellar physics, solar magnetism, heliophysics, helioseismology, asteroseismology, ...
First Light for Sunrise III: the first tests with real sunlight were successful. The balloon-borne solar observatory should be ready for launch at the end of May.
In analyzing solar observations from the 19th century, scientists are turning to amateur researchers for help. The project will allow to better understand the history of our star.
Astronomical teamwork: By combining data from Solar Orbiter and SDO, a group of researchers has unambiguously determined the magnetic field at the solar surface.