We present a statistical study of the largest bibliographic compilation of stellar and orbital
parameters of W UMa stars derived by light-curve synthesis with Roche models. The …

High precision CCD observations of six totally eclipsing contact binaries were presented
and analyzed. It is found that only one target is an A-type contact binary (V429 Cam), while …

The catalogue contains 199 confirmed cases of binary systems containing at least one
pulsating component of δ Sct type. The sample is divided into subgroups in order to describe …

New relationships between the orbital period and some parameters of W Ursae Majoris (W
UMa)-type systems are presented in this study. To investigate the relationships, we …

Period cut-off and period–colour relation are two special characters of W UMa-type contact
binaries. In the past, many authors noted these two properties, however, a comprehensive …

Secondary components of W UMa-type contact binaries (CBs) have many special
properties, two of them are excess in radius and luminosity. In order to make these …

We presented new photometry for four short-period late-type binaries, observed by three
small telescopes in China from 2020 September to 2021 December. Seven sets of light …

The accuracy of absolute parameters' estimation in contact binary systems is important for
investigating their evolution and solving some challenges. The Gaia DR3 parallax is one of …

Photometric analysis and spectroscopic study of the long-period low-mass-ratio deep-
contact binary KN Per were performed. The light curves of the BV (RI) c band were from the …

We investigated the statistical properties of both cool and hot starspots in eclipsing binary
stars. The starspot and binary parameters for contact and semi-detached systems were …