Open AccessPhotometric study of the short-period contact binary CW Canis Minoris
Author(s) -
Patapong Panpiboon,
P. Chinasa,
M. Pu,
W. Pharanud,
A. Sutthapintu,
A. Duangsopa,
C. Promsri,
C. Nilakhon,
K. tasee,
N. tachan,
N. Antapanya,
T. Saengnam,
T. Lawan,
Wijit Choawanklang
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1380/1/012084
Subject(s) - contact binary , ephemeris , physics , binary number , orbital period , light curve , astrophysics , period (music) , geodesy , mathematics , binary star , astronomy , stars , geology , acoustics , satellite , arithmetic
We present the new BV light curves of the short-period contact binary CW Canis Minoris. The (O-C) diagram was fitted with times of minima for a new linear ephemeris which the period of the contact binary is found to be 0.313152 (±0.000053) days. The orbital period of the eclipsing binary is found to show a long-term increase at a rate of 3.34 (±0.50) × 10 -7 days per year. The light curves were analyzed by the Wilson-Devinney code which has a mass ratio of 0.710 (±0.003) and a degree of contact about 0.013 (±0.989) %. The geometric structures of CW CMi are obtained with the components exactly filling its limited lobe.