192 citations · 409 across the 14 of their papers we have counts for
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Investigating global convective dynamos with mean-field models: full spectrum of turbulent effects required
Jörn Warnecke, Matthias Rheinhardt, Mariangela Viviani +3
The role of turbulent effects for dynamos in the Sun and stars continues to be debated. Mean-field (MF) theory provides a broadly used framework to connect these effects to fundame…
Hunting down the cause of solar magnetism
M. Viviani, A. Prabhu, J. Warnecke +4
To understand solar and stellar dynamos combining local and global numerical modelling with long-term observations is a challenging task: even with state of the art computational m…
Common dynamo scaling in slowly rotating young and evolved stars
Jyri J. Lehtinen, Federico Spada, Maarit J. Käpylä +2
One interpretation of the activity and magnetism of late-type stars is that these both intensify with decreasing Rossby number up to a saturation level, suggesting that stellar dyn…
Helicity proxies from linear polarisation of solar active regions
A. Prabhu, A. Brandenburg, M. J. Käpylä +1
The alpha effect is believed to play a key role in the generation of the solar magnetic field. A fundamental test for its significance in the solar dynamo is to look for magnetic h…
Rotational dependence of turbulent transport coefficients in global convective dynamo simulations of solar-like stars
J. Warnecke, M. J. Käpylä
For moderate and slow rotation, magnetic activity of solar-like stars is observed to strongly depend on rotation. These observations do not yet have a solid explanation in terms of…
Spot evolution on LQ Hya during 2006--2017: temperature maps based on SOFIN and FIES data
Elizabeth M. Cole-Kodikara, Maarit J. Käpylä, Jyri J. Lehtinen +4
Context. LQ Hya is one of the most frequently studied young solar analogue stars. Recently, it has been observed to show intriguing behaviour by analysing long-term photometry: dur…