Publications (49)
The Galactic Kinematics of Cataclysmic Variables
T. Ak, S. Bilir, A. Ãzdönmez +5
Kinematical properties of CVs were investigated according to population types and orbital periods, using the space velocities computed from recently updated systemic velocities, pr…
On the eclipsing cataclysmic variable star HBHA 4705-03
A. Rutkowski, T. Ak, T. R. Marsh +1
We present observations and analysis of a new eclipsing binary HBHA 4705-03. Using decomposition of the light curve into accretion disk and hot spot components, we estimated photom…
Aperiodic optical variability of intermediate polars - cataclysmic variables with truncated accretion disks
M. Revnivtsev, R. Burenin, I. Bikmaev +9
We study the power spectra of the variability of seven intermediate polars containing magnetized asynchronous accreting white dwarfs, XSS J00564+4548,IGR J00234+6141, DO Dra, V1223…
Colour Transformations between BVRc and g'r'i' Photometric Systems for Giant Stars
S. Ak, T. Ak, S. Karaali +9
The transformation equations from to magnitudes and vice versa for the giants were established from a sample of 80 stars collected from Soubiran et al. (2010) with…
A Multi-Data Approach to Open Clusters: Roslund 3 and Ruprecht 174 in CCD UBV and Gaia DR3 Context
H. Karagoz, T. Yontan, S. Bilir +5
A detailed analysis of the structural, astrophysical, kinematic, and dynamical properties of the open clusters Roslund 3 and Ruprecht1 74 is carried out using CCD UBV photometry in…
Ground-based transit observations of the HAT-P-18, HAT-P-19, HAT-P-27/WASP-40 and WASP-21 systems
M. Seeliger, M. Kitze, R. Errmann +46
As part of our ongoing effort to investigate transit timing variations (TTVs) of known exoplanets, we monitored transits of the four exoplanets HAT-P-18b, HAT-P-19b, HAT-P-27b/WASP…