Silva, S. S. A.; Lennard, M.; Verth, G.; Ballai, I.; Rempel, E. L.; Warnecke, J.; Iijima, H.; Hotta, H.; Park, S.-H.; Donea, A. C.et al.; Kusano, K.; Fedun, V.: Novel Approach to Forecasting Photospheric Emergence of Active Regions. The Astrophysical Journal 948, p. L24 (2023)
Warnecke, J.; Korpi-Lagg, M.; Gent, F. A.; Rheinhardt, M.: Numerical evidence for a small-scale dynamo approaching solar magnetic Prandtl numbers. Nature Astronomy 7, pp. 662 - 668 (2023)
Dikpati, M.; Gilman, P. A.; Guerrero, G. A.; Kosovichev, A. G.; McIntosh, S. W.; Sreenivasan, K. R.; Warnecke, J.; Zaqarashvili, T. V.: Simulating Solar Near-surface Rossby Waves by Inverse Cascade from Supergranule Energy. The Astrophysical Journal 931, p. 117 (2022)
Stejko, A. M.; Kosovichev, A. G.; Featherstone, N. A.; Guerrero, G.; Hindman, B. W.; Matilsky, L. I.; Warnecke, J.: Constraining Global Solar Models through Helioseismic Analysis. The Astrophysical Journal 934, p. 161 (2022)
Warnecke, J.; Rheinhardt, M.; Viviani, M.; Gent, F. A.; Tuomisto, S.; Käpylä, M. J.: Investigating Global Convective Dynamos with Mean-field Models: Full Spectrum of Turbulent Effects Required. The Astrophysical Journal Letters 919 (2), L13 (2021)
Warnecke, J.; Bingert, S.: Non-Fourier description of heat flux evolution in 3D MHD simulations of the solar corona. Geophysical and Astrophysical Fluid Dynamics 114 (1-2), pp. 261 - 281 (2020)
Warnecke, J.; Käpylä, M. J.: Rotational dependence of turbulent transport coefficients in global convective dynamo simulations of solar-like stars. Astronomy and Astrophysics 642, A66 (2020)
Losada, I. R.; Warnecke, J.; Brandenburg, A.; Kleeorin, N.; Rogachevskii, I.: Magnetic bipoles in rotating turbulence with coronal envelope. Astronomy and Astrophysics 621, A61 (2019)
Viviani, M.; Käpylä, M. J.; Warnecke, J.; Käpylä, P. J.; Rheinhardt, M.: Stellar Dynamos in the Transition Regime: Multiple Dynamo Modes and Antisolar Differential Rotation. Astrophysical Journal 886 (1), 21 (2019)
Boro Saikia, S.; Marvin, C. J.; Jeffers, S. V.; Reiners, A.; Cameron, R. H.; Marsden, S. C.; Petit, P.; Warnecke, J.; Yadav, A. P.: Chromospheric activity catalogue of 4454 cool stars: Questioning the active branch of stellar activity cycles. Astronomy and Astrophysics 616, A108 (2018)
Viviani, M.; Warnecke, J.; Käpylä, M. J.; Käpylä, P. J.; Olspert, N.; Cole-Kodikara, E. M.; Lehtinen, J.; Brandenburg, A.: Transition from axi- to nonaxisymmetric dynamo modes in spherical convection models of solar-like stars. Astronomy and Astrophysics 616, A 160 (2018)
Warnecke, J.; Rheinhardt, M.; Tuomisto, S.; Käpylä, P. J.; Käpylä, M. J.; Brandenburg, A.: Turbulent transport coefficients in spherical wedge dynamo simulations of solar-like stars. Astronomy and Astrophysics 609, A51 (2018)
Gent, F.A.; Käpylä, M. J.; Warnecke, J.: Long-term variations of turbulent transport coefficients in a solarlike convective dynamo simulation. Astronomische Nachrichten 338 (8), pp. 885 - 895 (2017)
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.