Results 31 to 40 of about 753,723 (234)
Light Curves and Roche Configurations of Near-Contact Binary AX Draconis [PDF]
Journal of Astronomy and Space Sciences, 2003 We completed the light curves of near-contact binary system AX Dra for 11 nights from March 2001 to May using the 61-cm reflector and VR filters at Sobaeksan Optical Astronomy Observatory.
Ho-Il Kim +4 more
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Frontiers in Physics, 2021 This paper aims to study the shear behavior of binary particles with irregular shapes by discrete element method simulations of the biaxial test in the membrane boundary condition.
Kai Wu +4 more
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The Evolution of Contact Binaries [PDF]
Symposium - International Astronomical Union, 1976 Asymmetric light curves and period changes of contact binaries can be explained by large-scale prominence activity. From the mass outflow accompanying this activity the mean lifetime of a contact binary is estimated as 5 × 107 yr. From the lifetimes of contact binaries and normal solar type dwarfs on the one hand and the proportion of the former among ...
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The Plutino Population: An Abundance of Contact Binaries [PDF]
The Astronomical Journal, 2018 Abstract We observed 12 Plutinos over two separated years with the 4.3 m Lowell’s Discovery Channel Telescope. Here, we present the first light-curve data for those objects. Three of them (2014 JL80, 2014 JO80, and 2014 JQ80) display a large light-curve amplitude explainable by a single elongated object, but they are most likely caused ...
Audrey Thirouin, Scott S. Sheppard
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OBSERVED PROPERTIES OF CONTACT BINARY SYSTEMS
Odessa Astronomical Publications, 2017 A group of close eclipsing systems, which continues to pose a challenge in many subjects of modern astrophysics, is that of contact binaries. In this study, using the most recent observational data of a large sample of such systems, a review concerning ...
A. Kalimeris, H. Rovithis-Livaniou
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Effective temperature and the light curve solution of contact binary systems [PDF]
Serbian Astronomical Journal, 2023 With an increasing number of contact binary discoveries and the recognition that luminous red novae are the result of contact binary merger events, there has been a significant increase in the number of light curve solutions appearing in the ...
Wadhwa S. +3 more
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The short-period limit of contact binaries [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 The stability of mass transfer is important in the formation of contact binaries from detached binaries when the primaries of the initially detached binaries fill their Roche lobes. Using Eggleton's stellar evolution code, we investigate the formation and the short-period limit of contact binaries by considering the effect of the instability of mass ...
Hongwei Ge +4 more
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Detection of Contact Binaries Using Sparse High Phase Angle Lightcurves
, 2007 We show that candidate contact binary asteroids can be efficiently identified from sparsely sampled photometry taken at phase angles >60deg. At high phase angle, close/contact binary systems produce distinctive lightcurves that spend most of the time at ...
Leone G. +5 more
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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
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The shortest period field contact binary [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 Abstract Photometric and spectroscopic results for the contact binary GSC 01387–00475 (ASAS 083128+1953.1) are presented. The existence of this binary with the orbital period of P= 0.2178 d strengthens the argument that the cut-off of the period distribution for contact binaries – until now defined by CC Comae – is very sharp.
Slavek M. Rucinski, T. Pribulla
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