Yu , J.; Bedding, T. R.; Stello, D.; Huber, D.; Compton, D. L.; Gizon, L.; Hekker, S.: Asteroseismology of luminous red giants with Kepler I: long-period variables with radial and non-radial modes. Monthly Notices of the Royal Astronomical Society 493 (1), pp. 1388 - 1403 (2020)
Bazot, M.; Benomar, O.; Christensen-Dalsgaard, J.; Gizon, L.; Hanasoge, S.; Nielsen, M.; Petit, P.; Sreenivasan, K. R.: Latitudinal differential rotation in the solar analogues 16 Cygni A and B. Astronomy and Astrophysics 623, A125 (2019)
Birch, A.; Schunker, H.; Braun, D. C.; Gizon, L.: Average surface flows before the formation of solar active regions and their relationship to the supergranulation pattern. Astronomy and Astrophysics 628, A37 (2019)
Nielsen, M. B.; Gizon, L.; Cameron, R. H.; Miesch, M.: Starspot rotation rates versus activity cycle phase: Butterfly diagrams of Kepler stars are unlike that of the Sun. Astronomy and Astrophysics 622, A85 (2019)
The Solar and Stellar Coronae group employs spectroscopic, imaging, and stereoscopic techniques to analyse observations from extreme UV solar telescopes and coronagraphs. On the side of theory and (numerical) simulations we use magnetic modelling to extrapolate magnetic fields and 3D magneto-static and magneto-hydrodynamic models.
Our research focusses on ultraviolet imaging and spectroscopy techniques, targeting at solar coronal features with a variety of scientific topics and methods that include (among other things) morphology and dynamics of coronal holes, spicules, sunspots, prominences/filaments and plumes, coronal heating, jets, flares, solar wind acceleration, density and temperature diagnostic, abundances and line identification.
Main goal of the group is to understand the structure, dynamics and heating of solar and stellar coronae. These outer atmospheres are heated to temperatures of more than a million degrees and show a large spatial and temporal variability.
STEREO ist eine Mission der NASA, die erstmalig 3D-Beobachtungen der Sonne und der inneren Heliosphäre liefert, um dazu beizutragen, den Ursprung, die Entwicklung und die interplanetaren Auswirkungen von koronalen Massenauswürfen zu verstehen.
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".
Our main goal is to understand the structure, dynamics and heating of solar and stellar coronae. These outer atmospheres are heated to temperatures of more than a million degrees and show a large spatial and temporal variability. To reach our goal we perform magnetohydrodynamics models of the upper solar atmosphere, synthesize the coronal emission to be expected from the computational domain, and compare this to actual coronal observations acquired in extreme ultraviolet and X-ray wavelengths.