170 citations · 2.2k across the 102 of their papers we have counts for
4 papers · 1 filter
Doppler images and the underlying dynamo. The case of AF Leporis
S. P. Järvinen, R. Arlt, T. Hackman +6
The (Zeeman-)Doppler imaging studies of solar-type stars very often reveal large high-latitude spots. This also includes F stars that possess relatively shallow convection zones, i…
Antisolar differential rotation of the K1-giant sigma Geminorum revisited
Zs. Kovari, L. Kriskovics, A. Künstler +6
Context. Surface differential rotation and other global surface flows on magnetically active stars are among the observable manifestations of the stellar dynamo working underneath.…
Magnitude-range brightness variations of overactive K giants
K. Oláh, A. Moór, Zs. Kővári +4
We study three representative, overactive spotted K giants (IL Hya, XX Tri, and DM UMa) known to exhibit V-band light variations between 0.65-1.05 mags. Our aim is to find the orig…
Detecting and quantifying stellar magnetic fields -- Sparse Stokes profile approximation using orthogonal matching pursuit
T. A. Carroll, K. G. Strassmeier
In the recent years, we have seen a rapidly growing number of stellar magnetic field detections for various types of stars. Many of these magnetic fields are estimated from spectro…