The critical mass ratio for W UMa-type contact binary systems [PDF]
Serbian Astronomical JournalContact binaries are close binary systems in which both components fill their inner Roche lobes so that the stars are in direct contact, and in potential mass and energy exchange.
Arbutina Bojan, Wadhwa Surjit
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BSN. II. The First Light Curve Study of Eight Total Eclipsing Contact Binary Stars with Shallow Fillout Factors [PDF]
Astronomical JournalThis study provides the first comprehensive analysis of eight total-eclipse W Ursae Majoris-type contact binary systems. Ground-based photometric multiband observations were conducted at a Mexican observatory, and new times of minima were extracted.
Atila Poro +8 more
semanticscholar +4 more sources
ZZ Piscis Austrinus (ZZ PsA): a bright red nova progenitor and the instability mass ratio of contact binary stars [PDF]
Monthly notices of the Royal Astronomical Society, 2020 ZZ Piscis Austrinus (ZZ PsA) is a neglected bright southern contact binary system with maximum V magnitude of 9.26. We present the first multiband photometric analysis and find the system to be in deep contact (>95 per cent) with an extremely low mass ...
Surjit S. Wadhwa +6 more
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Contact binary stars of the W UMa-type as distance tracers [PDF]
, 2004 Slavek M. Rucinski, Slavek M. Rucinski
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Masses and angular momenta of contact binary stars [PDF]
, 2006 Results are presented on component masses and system angular momenta for over 100 low-temperature contact binaries. It is found that the secondary components in close binary systems are very similar in mass.
K. Gazeas, P. G. Niarchos
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The uniqueness of determination of the photometric mass ratio of contact binary stars with applications to selected binaries [PDF]
Contributions of the Astronomical Observatory Skalnaté Pleso. We have used a Roche-geometry code to pre-generate light curves of contact binary stars using only mass ratio q , fill out f of the Roche lobes, and the inclination i of the orbital plane.
Ľ. Hambálek, T. Pribulla
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The Astronomical JournalNew BVR photometric and high-resolution spectroscopic observations of V505 Lac are presented with Transiting Exoplanet Survey Satellite (TESS) photometric data. The orbital period has experienced a secular decrease during the past 16 yr.
Min-Ji Jeong +6 more
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Origin of the orbital period change in contact binary stars [PDF]
International Journal of Modern Physics E, 2019 The evolution of contact binary star systems in mass asymmetry (transfer) coordinate is considered. The orbital period changes are explained by an evolution in mass asymmetry towards the symmetry (symmetrization of binary system).
V. V. Sargsyan +3 more
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A Catalog of 1022 Bright Contact Binary Stars [PDF]
, 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 are combined with J-, H-, and K-band near-infrared data taken from ...
Sara Gettel, M. Geske, Timothy A. McKay
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Reanalyzing the Light Curves and Absolute Parameters of Twenty Contact Binary Stars Using TESS Data [PDF]
AstrophysicsReanalyzing contact binaries with space-based photometric data and investigating possible parameter changes can yield accurate samples for theoretical studies.
Ehsan Paki, Atila Poro
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