36 citations · 150 across the 18 of their papers we have counts for
8 papers · 1 filter
High-Resolution Modelling of Coronae and Winds in Solar-type Stars with Varying Rotation Rates II. Stellar Winds
Yue-Hong Chen, Julián D. Alvarado-Gómez, Xin Cheng +6
Observations suggest a connection between steady-wind mass loss and coronal X-ray activity in low-mass main-sequence stars. Interpreting this connection is challenging because the…
High-Resolution Modelling of Coronae and Winds in Solar-type Stars with Varying Rotation Rates I. X-ray Coronae
Yue-Hong Chen, Julián D. Alvarado-Gómez, Xin Cheng +8
Stellar coronae are believed to be the main birthplace of various stellar magnetic activities. However, the structures and properties of stellar coronae remain poorly understood. U…
Small-scale and large-scale dynamos in global convection simulations of solar-like stars
Jörn Warnecke, Maarit J. Korpi-Lagg, Matthias Rheinhard +2
It has been recently shown numerically that a small-scale dynamo (SSD) instability could be possible in solar-like low magnetic Prandtl number plasmas. It has been proposed that th…
Numerical evidence for a small-scale dynamo approaching solar magnetic Prandtl numbers
Jörn Warnecke, Maarit J. Korpi-Lagg, Frederick A. Gent +1
Magnetic fields on small scales are ubiquitous in the universe. Though they can often be observed in detail, their generation mechanisms are not fully understood. One possibility i…
From convective stellar dynamo simulations to Zeeman-Doppler images
Thomas Hackman, Oleg Kochukhov, Mariangela Viviani +3
Zeeman-Doppler imaging (ZDI) is used to reconstruct the surface magnetic field of late-type stars from high resolution spectropolarimetric observations. The results are usually des…
Small-scale dynamos: From idealized models to solar and stellar applications
Matthias Rempel, Tanayveer Bhatia, Luis Bellot Rubio +1
In this article we review small-scale dynamo processes that are responsible for magnetic field generation on scales comparable to and smaller than the energy carrying scales of tur…
Solar-Cycle Variation of quiet-Sun Magnetism and Surface Gravity Oscillation Mode
Maarit J. Korpi-Lagg, Andreas Korpi-Lagg, Nigul Olspert +1
The origin of the quiet Sun magnetism is under debate. Investigating the solar cycle variation observationally in more detail can give us clues about how to resolve the controversi…
V889 Her: abrupt changes in the magnetic field or differential rotation?
Teemu Willamo, Thomas Hackman, Jyri J. Lehtinen +2
We have applied Zeeman-Doppler imaging (ZDI) to an extensive spectropolarimetric HARPSpol data set of the magnetically active young solar analogue V889 Her, covering 35 spectra obt…