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astro-ph2008★ 4 cited
On the apsidal motion of BP Vulpeculae
Sz. Csizmadia, E. Illes-Almar, T. Borkovits
BP Vulpeculae is a bright eclipsing binary system showing apsidal motion. It was found in an earlier study that it shows retrograde apsidal motion which contradicts theory. In this…
astro-ph2007★ 23 cited
Tidal and rotational effects in the perturbations of hierarchical triple stellar systems. II. Eccentric systems - the case of AS Camelopardalis
T. Borkovits, E. Forgács-Dajka, Zs. Regály
We study the perturbations of a relatively close third star on a tidally distorted eccentric eclipsing binary. We consider both the observational consequences of the variations of…
astro-ph2006★ 17 cited
Long-term variation in distribution of sunspot groups
E. Forgacs-Dajka, B. Major, T. Borkovits
We studied the relation between the distribution of sunspot groups and the Gleissberg cycle. As the magnetic field is related to the area of the sunspot groups, we used area-weight…