17 citations · 17 across the 5 of their papers we have counts for
5 papers
Magnetic activity in cool stars: manifestations and relevance to exoplanets
E. Işık, A. Valio, A. Strugarek +10
Understanding stellar magnetic activity is central to exoplanet science in two ways: it sets the dynamic astrospheric boundary condition governing planetary space environments, and…
Magnetic evolution of complex solar active regions
Shabnam Nikbakhsh, Eija I. Tanskanen, Thomas Hackman
Aims. This study investigates the magnetic evolution of solar active regions (ARs), with a particular focus on understanding how the magnetic morphology of simple and complex ARs c…
Characterising the stellar differential rotation based on largest-spot statistics from ground-based photometry
Mikko Tuomi, Jyri J. Lehtinen, Gregory W. Henry +1
Stellar spot distribution has consequences on the observable periodic signals in long-time baseline ground-based photometry. We model the statistics of the dominating spots of two…
Surface distribution of small-scale magnetic field on the active cool star LQ Hydrae
O. Kochukhov, T. Hackman, J. J. Lehtinen
It is well known that small-scale magnetism dominates the surface magnetic field topologies of active late-type stars. However, little information is available on the spatial distr…
Long-term spot monitoring of the young solar analogue V889 Her
T. Willamo, T. Hackman, J. J. Lehtinen +6
Starspots are important manifestations of stellar magnetic activity. By studying their behaviour in young solar analogues, we can unravel the properties of their magnetic cycles. T…