56 citations · 69 across the 4 of their papers we have counts for
4 papers · 1 filter
The chromospherically active binary star EI Eridani II. Long-term Doppler imaging
A. Washuettl, K. G. Strassmeier, M. Weber
Data from 11 years of continuous spectroscopic observations of the active RS CVn-type binary star EI Eridani - gained at NSO/McMath-Pierce, KPNO/Coude Feed and during the MUSICOS 9…
Doppler maps and surface differential rotation of EI Eri from the MUSICOS 1998 observations
Zs. Kővári, A. Washuettl, B. H. Foing +4
We present time-series Doppler images of the rapidly-rotating active binary star EI Eri from spectroscopic observations collected during the MUSICOS multi-site campaign in 1998, si…
The chromospherically active binary star EI Eridani I. Absolute dimensions
A. Washuettl, K. G. Strassmeier, T. Granzer +2
We present a detailed determination of the astrophysical parameters of the chromospherically active binary star EI Eridani. Our new radial velocities allow to improve the set of or…
The Blazhko behaviour of RR Geminorum I - CCD photometric results in 2004
J. Jurcsik, Á. Sódor, M. Váradi +9
Extended CCD monitoring of RR Gem revealed that it is a Blazhko type RRab star with the shortest Blazhko period (7.23d) and smallest modulation amplitude (Delta Mmax<0.1 mag) curre…