Journal ArticleDOI
The mass-radius relation in binary systems
A. Giménez,Jaime Zamorano +1 more
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In this article, the mass-radius relation for Main-Sequence stars from observational data of well-detached binary systems has been determined and compared with theoretical main-sequence models.Abstract:
The mass-radius relation is determined for Main-Sequence stars from observational data of well-detached binary systems. The results are compared to previous empirical relations and we discuss their application to the study of the light curves of eclipsing binaries. A comparison with theoretical Main-Sequence models has been carried out.read more
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Stellar mass-luminosity and mass-radius relations
Osman Demircan,Göksel Kahraman +1 more
TL;DR: In this paper, the mass-luminosity and mass-radius relations (MLR and MRR) for the Main-Sequence (MS) stars have been used together with new theoretical estimates in the study of mass luminosity.
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Interrelated main-sequence mass–luminosity, mass–radius, and mass–effective temperature relations
Zeki Eker,Volkan Bakiş,Selçuk Bilir,Faruk Soydugan,I. Steer,Esin Soydugan,Hicran Bakiş,F. Alicavus,Gürkan Aslan,M. Alpsoy +9 more
TL;DR: In this article, the authors used a six-piece classical MLR (L \propto M^{\alpha}$) rather than a fifth or a sixth degree polynomial within the mass range of the main-sequence stars.
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Main-sequence effective temperatures from a revised mass–luminosity relation based on accurate properties
Zeki Eker,Faruk Soydugan,Esin Soydugan,Selçuk Bilir,E. Yaz Gökçe,I. Steer,M. Tüysüz,T. Senyuz,Osman Demircan +8 more
TL;DR: In this article, the mass-luminosity (M-L), mass-radius and mass-effective temperature diagrams for a subset of galactic nearby main-sequence stars with masses and radii accurate to 3\% and luminosities accurate to 30\% (268 stars) have been found.
Journal ArticleDOI
Angular momentum and mass evolution of contact binaries
Kosmas Gazeas,K. Stȩpień +1 more
TL;DR: In this paper, an alternative scenario of evolution in contact is presented and discussed, based on the observational data of over one hundred low-temperature contact binaries, where theoretical tracks are computed assuming angular momentum loss from a system via stellar wind, accompanied by mass transfer from an advanced evolutionary secondary to the main-sequence primary.
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A new mechanism of long-term period variations for W UMa-type contact binaries
TL;DR: In this paper, the authors proposed a CCE-dominated mechanism to explain the long-term variations of the orbital periods of W UMa-type contact binaries with high mass ratios.
References
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Book
Dynamics of Close Binary Systems
TL;DR: In this article, the authors present a model for the formation and evolution of binary stars in the sky using the Eulerian Equation (ELE) and the Roche Model.
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Evolution in close binary systems
TL;DR: In this article, the authors make use of the observation of photometric over dynamical ellipticities of W UMa-type systems to show that their origin was caused by contraction towards two preexisting mass centers in close proximity of each other.
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Determination of empirical mass-luminosity and mass-radius relations for main-sequence stars that are the components of eclipsing binary systems
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