31 citations · 58 across the 11 of their papers we have counts for
16 papers
Physical parameters of close binary systems: VIII
K. Gazeas, S. Zola, A. Liakos +13
This paper presents the results of a combined spectroscopic and photometric study of 20 contact binary systems: HV Aqr, OO Aql, FI Boo, TX Cnc, OT Cnc, EE Cet, RWCom, KR Com, V401…
International observational campaign of the 2014 eclipse of EE Cep
D. Pieńkowski, C. Gałan, T. Tomov +64
Context. EE Cep is one of few eclipsing binary systems with a dark, dusty disk around an invisible object similar to ε Aur. The system is characterized by grey and asymmetric eclip…
New light curve solution of V568 Peg and first determination of its fundamental parameters
Diana Kjurkchieva, Sunay Ibryamov
We present V, Rc photometric observations of the short-period W UMa star V568 Peg. They allowed us to improve its period. The light curve solution revealed that V568 Peg is an over…
First observations with the 25 cm telescope of the Shumen Astronomical Observatory
Diana Kjurkchieva, Sunay Ibryamov, Borislav Borisov +3
The first observations with the 25 cm telescope of the Shumen Astronomical Observatory led to the following conclusions: (a) Intra-night observations of variable stars with an ampl…
The W UMa binaries USNO-A2.0 1350-17365531, V471 Cas, V479 Lac and V560 Lac: light curve solutions and global parameters based on the GAIA distances
Diana P. Kjurkchieva, Velimir A. Popov, Yordanka Eneva +1
We present photometric observations in Sloan filters g', i' of the eclipsing W UMa stars USNO-A2.0 1350-17365531, V471 Cas, V479 Lac and V560 Lac. The sinusoidal-like O-C diagram o…
NSVS 2569022: a peculiar binary among the W UMa stars with extremely small mass ratios
Diana P. Kjurkchieva, Velimir A. Popov, Nikola I. Petrov
Photometric observations of the W UMa binary NSVS 2569022 are presented. The light curve solution reveals that both components are of F spectral type (temperatures ==6100…