179 citations · 2.3k across the 86 of their papers we have counts for
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Flip-flops of FK Comae Berenices
Thomas Hackman, Jaan Pelt, Maarit J. Mantere +6
FK Comae is a rapidly rotating magnetically active star, the light curve of which is modulated by cool spots on its surface. It was the first star where the "flip-flop" phenomenon…
Rotation, activity, and lithium abundance in cool binary stars
K. G. Strassmeier, M. Weber, T. Granzer +1
We have used two robotic telescopes to obtain time-series high-resolution spectroscopy and V I and/or by photometry for a sample of 60 active stars. Orbital solutions are presented…
The GREGOR solar telescope on Tenerife
Wolfgang Schmidt, Oskar von der Lühe, Reiner Volkmer +14
2011 was a successful year for the GREGOR project. The telescope was finally completed in May with the installation of the 1.5-meter primary mirror. The installation of the first-l…
Critical fields and growth rates of the Tayler instability as probed by a columnar gallium experiment
Guenther Ruediger, Marcus Gellert, Manfred Schultz +5
Many astrophysical phenomena (such as the slow rotation of neutron stars or the rigid rotation of the solar core) can be explained by the action of the Tayler instability of toroid…