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Study on the physical parameters of 18 contact binary stars [PDF]
Monthly Notices of the Royal Astronomical SocietyABSTRACT We present the photometric light curve solutions of 18 W Ursae Majoris-type contact binary stars with orbital periods shorter than 0.5 d. This investigation utilized photometric data from the Transiting Exoplanet Survey Satellite, Gaia, and the All Sky Automated Survey for SuperNovae.
A Poro +6 more
semanticscholar +4 more sources
The Photometric Amplitude and Mass Ratio Distributions of Contact Binary Stars [PDF]
The Astronomical Journal, 2001 The distribution of the light-variation amplitudes, A(a), in addition to determining the number of undiscovered contact binary systems falling below photometric detection thresholds and thus lost to statistics, can serve as a tool in determination of the mass-ratio distribution, Q(q), which is very important for understanding of the evolution of ...
S. Rucinski
semanticscholar +6 more sources
A Catalog of 1022 Bright Contact Binary Stars [PDF]
The Astronomical Journal, 2006 In this work we describe a large new sample of contact binary stars extracted in a uniform manner from sky patrol data taken by the ROTSE-I telescope. Extensive ROTSE-I light curve data is combined with J, H, and K band near-infrared data taken from the Two Micron All-Sky Survey (2MASS) to add color information. Contact binaries candidates are selected
Gettel, S. J. +2 more
semanticscholar +6 more sources
The Photometric Study of Six W UMa Systems and Investigation of the Mass–Radius Relations for Contact Binary Stars [PDF]
Publications of the Astronomical Society of the Pacific, 2022 We present the photometric analysis of six short-period systems (EI Oct, V336 TrA, NX Boo, V356 Boo, PS Boo, and V2282 Cyg). This is the first photometric analysis of these systems except for V336 TrA.
A. Poro +15 more
semanticscholar +3 more sources
International Astronomical Union Colloquium, 1983 Abstract:Ultraviolet and X-ray surveys of the W Ursae Majoris type stars are reviewed. These systems exhibit extended coronas and transition regions that are confined close to the optically determined surfaces. Correlations of X-ray activity with period or rotational velocity indicate a turn-over or saturation of emission at the short periods or high ...
A. K. Dupree
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Theories of Contact Binary Stars [PDF]
Symposium - International Astronomical Union, 1980 We review and contrast two current theories for the structure of contact binary stars: discontinuity theory and thermal relaxation oscillation theory. We find that the two theories are complementary with the crucial theoretical issue to be resolved being the secular stability of the temperature inversion layer. Critical observational tests remain to be
Frank H. Shu
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BSN. V. The First Detailed Light Curve Modeling of Eight Totally Eclipsing Contact Binary Stars Using Ground-based and TESS Observations [PDF]
Publications of the Astronomical Society of the PacificThis study broadens our comprehensive investigation of total-eclipse W Ursae Majoris-type contact binaries by analyzing eight additional systems, continuing our previous research.
A. Poro +5 more
semanticscholar +4 more sources
Contact Binary Stars as Standard Candles [PDF]
, 1995 review presented at Binaries in Clusters meeting, Calgary, Alberta, June 19-23, 1995. uufiles compressed Post-Script text and 4 figures.
S. M. Ruciński
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Absolute Dimensions of Contact Binary Stars in Baade Window [PDF]
Journal of Astronomy and Space Sciences, 1999 The light curves of the representative 6 contact binary stars observed by OGLE Project of searching for dark matter in our Galaxy have been analyzed by the method of the Wilson and Devinney Differential Correction to find photometric solutions.
Young Woon Kang
doaj +2 more sources
A Study of Ten Early-type Contact Binary Stars in the Small Magellanic Cloud [PDF]
Publications of the Astronomical Society of the Pacific, 2023 To study early-type binary systems in different evolutionary stages or environments, the Small Magellanic Cloud (SMC) is an ideal laboratory due to its low metallicity compared to that of the Milky Way.
Chu-Qi Wu +6 more
semanticscholar +2 more sources