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 …

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 cutoff mass ratio is under debate for contact binaries. In this paper, we present the
investigation of two contact binaries with mass ratios close to the low mass ratio limit. It is …

DEEP, LOW MASS RATIO OVERCONTACT BINARY SYSTEMS. XIV. A STATISTICAL
ANALYSIS OF 46 SAMPLE BINARIES - IOPscience Skip to content IOP Science home …

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 …

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) …

Complete CCD photometric light curves in BV (RI) c bands obtained on one night in 2009 for
the short-period close-binary system V1191 Cygni are presented. A new photometric …

New multi-color photometry for the eclipsing binary DZ Psc was performed in 2011 and 2012
using the 85 cm telescope at the Xinglong Station of the National Astronomical …

We present precision CCD photometry, a period study, and a two-color simultaneous Wilson
code solution of the short-period contact binary CK Bootis. The asymmetric light curves were …