Prabhu, A. P.; Singh, N. K.; Käpylä, M. J.; Lagg, A.: Inferring magnetic helicity spectrum in spherical domains: Method and example applications. Astronomy and Astrophysics 654, A3 (2021)
Löptien, B.; Lagg, A.; van Noort, M.; Solanki, S. K.: No universal connection between the vertical magnetic field and the umbra-penumbra boundary in sunspots. Astronomy and Astrophysics 639, A106 (2020)
Prabhu, A.; Brandenburg, A.; Käpylä, M. J.; Lagg, A.: Helicity proxies from linear polarisation of solar active regions. Astronomy and Astrophysics 641, A46 (2020)
Prabhu, A.; Lagg, A.; Hirzberger, J.; Solanki, S. K.: The magnetic fine structure of the Sun's polar region as revealed by Sunrise. Astronomy and Astrophysics 644, A86 (2020)
Siu-Tapia, A. L.; Lagg, A.; van Noort, M.; Rempel, M.; Solanki, S. K.: Superstrong photospheric magnetic fields in sunspot penumbrae. Astron. Astrophys.; EDP Sciences, Les Ulis Cedex A France 631, A99 (2019)
González Manrique, S. J.; Kuckein, C.; Collados, M.; Denker, C.; Solanki, S. K.; Gömöry, P.; Verma, M.; Balthasar, H.; Lagg, A.; Diercke, A.: Temporal evolution of arch filaments as seen in He I 10 830 Å. Astronomy and Astrophysics 617, A55 (2018)
Löptien, B.; Lagg, A.; van Noort, M.; Solanki, S. K.: Measuring the Wilson depression of sunspots using the divergence-free condition of the magnetic field vector. Astronomy and Astrophysics 619, A42 (2018)
Singh, N. K.; Käpylä, M. J.; Brandenburg, A.; Käpylä, P. J.; Lagg, A.; Virtanen, I.: Bihelical Spectrum of Solar Magnetic Helicity and Its Evolution. The Astrophysical Journal 863 (2), 182 (2018)
Siu-Tapia, A. L.; Rempel, M.; Lagg, A.; Solanki, S. K.: Evershed and Counter-Evershed Flows in Sunspot MHD Simulations. The Astrophysical Journal 852 (2), 66 (2018)
How does our star heat its outer atmosphere, the solar corona, to unimaginable temperatures of up to 10 million degrees Celsius? With unprecedented observational data from ESA's Solar Orbiter spacecraft and powerful computer simulations, ERC starting grant awardee Pradeep Chitta intends to bring new momentum to the search for the coronal heating mechanism.
The research group “Solar Lower Atmosphere and Magnetism” (SLAM) studies the conditions and dynamic processes in the atmospheric layer between the solar surface (photosphere) and the overlying chromosphere, an approximately 2000 km thick gas layer.
The main research fields of the department "Sun and Heliosphere" are covered by the research groups "Solar and Stellar Coronae", "Solar Lower Atmosphere and Magnetism", "Solar and Stellar Magnetohydrodynamics" and "Solar Variability and Climate".