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 …

Starspots in contact and semi-detached binary systems

S Kouzuma - Publications of the Astronomical Society of Japan, 2019 - academic.oup.com
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 …

Photometric study of two totally eclipsing contact binaries: V789 Her and V1007 Cas

K Li, SM Hu, DF Guo, X Chen - Publications of the Astronomical …, 2018 - iopscience.iop.org
Two sets of V and R c light curves of V789 Her and one complete set of BVR c I c light curves
of V1007 Cas were observed and presented. By analyzing all these light curves together …

Photometric studies of three neglected short-period contact binaries GN bootis, BL leonis, and v1918 cygni

YG Yang, SB Qian, HF Dai - The Astronomical Journal, 2013 - iopscience.iop.org
We present new photometry for three short-period contact binaries, GN Boo, BL Leo, and
V1918 Cyg, observed from 2008 December to 2012 April using several small telescopes in …

The Nature of V1464 Aql: A New Ellipsoidal Variable with a δ Scuti Component

HA Dal, E Sipahi - Publications of the Astronomical Society of …, 2013 - cambridge.org
Taking into account the results obtained from the models and analyses of the BVRI light
curves, we discuss the nature of V1464 Aql. The analyses indicated that the mass ratio of the …

On period variations of the K-type eclipsing binary BM ursae majoris

YG Yang, JY Wei, K Nakajima - Publications of the Astronomical …, 2009 - academic.oup.com
From new CCD observations, 11 light minimum times are presented in this paper. The
orbital period change of a W UMa-type eclipsing binary, BM Urase Majoris, was …

Orbital-Period Variations and Photometric Analysis for the Neglected Contact Binary EH Cancri

YG Yang, ZY Shao, HJ Pan, XG Yin - Publications of the …, 2011 - iopscience.iop.org
New CCD photometry for the eclipsing binary EH Cnc was made from 2009 to 2011, and five
new eclipsing times are presented. Through using the updated Wilson-Devinney code, we …

The first photometric investigations of the G-type shallow contact binary IO Cnc

WP Liao, LJ Li, X Zhou, QS Wang - Research in Astronomy and …, 2021 - iopscience.iop.org
IO Cnc was classified to be a new G-type (G0) W UMa-type eclipsing binary system. Our first
multicolor photometric solutions show that IO Cnc is a new W-subtype shallow contact binary …

Close binary systems in multiple stars: III. Eclipsing variables with LITE effect

MM Zakirov - Kinematics and Physics of Celestial Bodies, 2010 - Springer
The list of 240 eclipsing variables with the light equation (LITE effect) has been compiled.
Some characteristics of multiple systems have been determined assuming that those stars …

A photometric study of the K-type contact binary EI CVn

YG Yang - Research in Astronomy and Astrophysics, 2011 - iopscience.iop.org
We present charge-coupled device (CCD) photometry for the short-period K-type binary EI
CVn, observed on 2009 February 28 at the Xinglong Station of National Astronomical …