252 citations · 406 across the 6 of their papers we have counts for
6 papers
Time-series Doppler images and surface differential rotation of the effectively-single rapidly-rotating K-giant KU Pegasi
Zs. Kővári, A. Künstler, K. G. Strassmeier +6
According to most stellar dynamo theories, differential rotation (DR) plays a crucial role for the generation of toroidal magnetic fields. Numerical models predict surface differen…
Broad-band spectrophotometry of HAT-P-32 b: Search for a scattering signature in the planetary spectrum
M. Mallonn, I. Bernt, E. Herrero +12
Multi-colour broad-band transit observations offer the opportunity to characterise the atmosphere of an extrasolar planet with small- to medium-sized telescopes. One of the most fa…
Anti-solar differential rotation on the active sub-giant HU Virginis
G. Harutyunyan, K. G. Strassmeier, A. Künstler +2
Measuring surface differential rotation (DR) on different types of stars is important when characterizing the underlying stellar dynamo. It has been suggested that anti-solar DR la…
Broad-band spectrophotometry of the hot Jupiter HAT-P-12b from the near-UV to the near-IR
M. Mallonn, V. Nascimbeni, J. Weingrill +13
The detection of trends or gradients in the transmission spectrum of extrasolar planets is possible with observations at very low spectral resolution. Transit measurements of suffi…
Precise Radial Velocities of Giant Stars VII. Occurrence Rate of Giant Extrasolar Planets as a Function of Mass and Metallicity
Sabine Reffert, Christoph Bergmann, Andreas Quirrenbach +2
(abridged) We have obtained precise radial velocities for a sample of 373 G and K type giants at Lick Observatory regularly over more than 12 years. Planets have been identified ar…
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.…