Published February 2014 | Version v1
Journal article Metadata-only

First photometric study of the very short period K-type contact binary 1SWASP J064501.21+342154.9

Creators

  • 1. Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011 (China)
  • 2. National Astronomical Research Institute of Thailand/Ministry of Science and Technology, Bangkok (Thailand)
  • 3. Department of Physics and Astronomy, University of Nebraska, 1400 R Street, Lincoln, NE 68588 (United States)

Description

The first high precision CCD photometric light curves of 1SWASP J064501.21+342154.9 were obtained in 2013 February along with several new times of minimum light. The multi-color light curves were analyzed using the Wilson-Devinney code. Photometric solutions reveal that the system is a W-type shallow contact binary with a mass ratio of q = 2.110 ± 0.007 and a degree of contact of f = 15.3% ± 2.1%. A third light contributing about 2% of the total luminosity in the I band was found. It may come from a cool tertiary component. A small spot found on the surface of the binary indicates that the solar-like activities are at a low level at present.

Availability note (English)

Available from http://dx.doi.org/10.1088/0004-6256/147/2/41

Additional details

Identifiers

DOI
10.1088/0004-6256/147/2/41;

Publishing Information

Journal Title
Astronomical Journal (New York, N.Y. Online)
Journal Volume
147
Journal Issue
2
Journal Page Range
[5 p.]
ISSN
1538-3881

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46046326
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ACCURACY; CHARGE-COUPLED DEVICES; COLOR; DIAGRAMS; ECLIPSE; LUMINOSITY; MASS; MATHEMATICAL SOLUTIONS; STAR EVOLUTION; STARS; SURFACES; VISIBLE RADIATION
Descriptors DEC
ELECTROMAGNETIC RADIATION; EVOLUTION; INFORMATION; OPTICAL PROPERTIES; ORGANOLEPTIC PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; SEMICONDUCTOR DEVICES