Contact binaries at different evolutionary stages

SB Qian, LY Zhu, L Liu, XD Zhang, XD Shi… - … in Astronomy and …, 2020 - iopscience.iop.org
Contact binaries consist of two strongly interacting component stars where they are filling
their critical Roche lobes and sharing a common envelope. Most of them are main-sequence …

Photometric study and absolute parameter estimation of six totally eclipsing contact binaries

K Li, QQ Xia, CH Kim, X Gao, SM Hu… - The Astronomical …, 2021 - iopscience.iop.org
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 …

New low mass ratio contact binaries in the Catalina Sky Survey

PE Christopoulou, E Lalounta… - Monthly Notices of …, 2022 - academic.oup.com
We present the identification and photometric analysis of 30 new low mass ratio (LMR)
totally eclipsing contact binaries found in Catalina Sky Survey data. The LMR candidates are …

Investigation of the orbital period and mass relations for W UMa-type contact systems

A Poro, S Sarabi, S Zamanpour… - Monthly Notices of …, 2022 - academic.oup.com
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 …

Deep, low mass ratio overcontact binary systems. XIV. A statistical analysis of 46 sample binaries

YG Yang, SB Qian - The Astronomical Journal, 2015 - iopscience.iop.org
DEEP, LOW MASS RATIO OVERCONTACT BINARY SYSTEMS. XIV. A STATISTICAL
ANALYSIS OF 46 SAMPLE BINARIES - IOPscience Skip to content IOP Science home …

Orbital period cut-off of W UMa-type contact binaries

XD Zhang, SB Qian - Monthly Notices of the Royal Astronomical …, 2020 - academic.oup.com
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 …

Different evolutionary pathways for the two subtypes of contact binaries

XD Zhang, SB Qian, WP Liao - Monthly Notices of the Royal …, 2020 - academic.oup.com
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 …

NY Bootes: An Active Deep and Low-mass-ratio Contact Binary with a Cool Companion in a Hierarchical Triple System

F Meng, L Zhu, S Qian, N Liu, L Li… - The Astrophysical …, 2023 - iopscience.iop.org
The first detailed photometric and spectroscopic study of G-type short-period binary NY Boo
is presented. The radial velocity curve was obtained by the cross-correlation function (CCF) …

Magnetic Activity and Orbital Period Study for the Short-period RS CVn–type Eclipsing Binary DV Psc

Q Pi, L Zhang, S Bi, XL Han, H Lu, Q Yue… - The Astrophysical …, 2019 - iopscience.iop.org
Using 27 sets of new multiband photometry light curves acquired from our long-term
photometric campaign carried out in the last 5 yr and high-resolution spectroscopic data …

The evolution of low mass contact binaries

K Stępień, K Gazeas - Proceedings of the International Astronomical …, 2011 - cambridge.org
We discuss the origin and evolution of low mass contact binaries with Porb shorter than 0.3
d that have properties somewhat different from the rest of the contact binaries. A comparison …