Multi-band photometric observations of 11 totally eclipsing contact binaries were carried out.
Applying the Wilson–Devinney program, photometric solutions were obtained. There are two …

Photometric observations for the totally eclipsing binary system TYC 4002-2628-1, were
obtained between November 2020 and November 2021. To determine the stellar …

Photometric observations and analysis of twelve previously poorly studied contact binary
systems is presented. All show total eclipses and have extremely low mass ratios ranging …

The mass ratio q of a contact binary star evolves through mass transfer, magnetic braking,
and thermal relaxation oscillations to low values until it crosses a critical threshold q min …

The orbital stability of contact binary systems has been receiving considerable attention
recently. Theoretical studies indicate that merger is likely to occur at very low-mass ratios …

With the ever-increasing number of light-curve solutions of contact binary systems, an
increasing number of potential bright red nova progenitors are being reported. There …

Multi-band (B, V and R) photometric and spectroscopic observations of six poorly studied
contact binaries carried out at the Western Sydney University and Las Cumbres Observatory …

This paper presents the first analysis of the contact binary TYC 3801-1529-1. We observed
four sets of multiple bands complete light curves and one set of radial velocity curve of the …

We present a multiband photometric analysis of CRTS J163819. 6+ 03485, the first low-
mass-ratio contact binary system with a period of 0.2053321 day under the contact binary …

In this paper, the total eclipsing binary WISE J185503. 7+ 592234 (hereinafter J185503),
whose mass ratio is around the mass ratio limit, was observed and investigated for the first …