Evolution of Close Binary Systems
Kadri Yakut,Peter P. Eggleton +1 more
TL;DR: In this paper, the authors collected data on the masses, radii, etc. of three classes of close binary stars: low-temperature contact binaries (LTCBs), near-contact binaries (NCBs), and detached close binaries (DCBs).
read more
Abstract: We collected data on the masses, radii, etc. of three classes of close binary stars: low-temperature contact binaries (LTCBs), near-contact binaries (NCBs), and detached close binaries (DCBs). They restrict themselves to systems where (1) both components are, at least arguably, near the Main Sequence, (2) the periods are less than a day, and (3) there is both spectroscopic and photometric analysis leading to reasonably reliable data. They discuss the possible evolutionary connections between these three classes, emphasizing the roles played by mass loss and angular momentum loss in rapidly-rotating cool stars.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
V1309 Scorpii: merger of a contact binary
R. Tylenda,Marcin Hajduk,T. Kamiński,Andrzej Udalski,Igor Soszyński,Michał K. Szymański,M. Kubiak,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Radosław Poleski,Łukasz Wyrzykowski,Krzysztof Ulaczyk +11 more
TL;DR: In this paper, the authors investigate the nature of V1309 Sco and find that the progenitor was a contact binary with an orbital period of ~1.4 days.
V1309 Scorpii: merger of a contact binary
R. Tylenda,Marcin Hajduk,T. Kamiński,Andrzej Udalski,Igor Soszyński,Michał K. Szymański,M. Kubiak,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Radosław Poleski,Łukasz Wyrzykowski,Krzysztof Ulaczyk +11 more
TL;DR: In this paper, the authors investigated the nature of the observed short-term variability of the progenitor of V1309-Sco and found that the binary was a contact binary with an orbital period of 1.4 days.
Supernova Type Ia progenitors from merging double white dwarfs: Using a new population synthesis model
TL;DR: In this article, the authors investigate the potential contribution of the population of merging double carbon-oxygen white dwarfs to the SNIa rate and develop a model that fits the observed SNIaa progenitors as well as the observed close double white dwarf population.
302
The Zwicky Transient Facility Catalog of Periodic Variable Stars
TL;DR: In this article, the authors classify 781,602 periodic variables into 11 main types using an improved classification method, including Cepheids, RR Lyrae, Delta Scuti, and contact (EW-type) eclipsing binaries.
189
Contact Binaries with Additional Components. II. A Spectroscopic Search for Faint Tertiaries
TL;DR: In this paper, a search for the signature of third components in archival spectra of very close binary stars is presented, where the authors find evidence for the presence of a third component, down to a detection limit of tertiary flux contributions of about 0.8% at 5200?.
152
References
Approximations to the radii of Roche lobes
TL;DR: In this article, the effective radii of the Roche lobes were computed and compared with the results of Kopal and Pacynski, and a convenient approximation was given, whose derivative was smooth and fairly accurate.
2.5K
Helioseismic Studies of Differential Rotation in the Solar Envelope by the Solar Oscillations Investigation Using the Michelson Doppler Imager
Jesper Schou,H. M. Antia,Sarbani Basu,R. S. Bogart,R. I. Bush,S. M. Chitre,Joergen Christensen-Dalsgaard,M. Di Mauro,W. A. Dziembowski,Antonio Eff-Darwich,Douglas Gough,Deborah A. Haber,J. T. Hoeksema,R. Howe,S. G. Korzennik,Alexander G. Kosovichev,R. M. Larsen,R. M. Larsen,Frank P. Pijpers,Philip H. Scherrer,Takashi Sekii,Theodore D. Tarbell,Alan M. Title,Michael Thompson,Juri Toomre +24 more
TL;DR: In this article, the authors report on joint helioseismic analyses of solar rotation in the convection zone and in the outer part of the radiative core using the Michelson Doppler Imager (MDI) on the Solar and Heliospheric Observatory (SOHO) spacecraft.
Approximate input physics for stellar modelling
TL;DR: In this article, the authors present a simple and efficient, yet reasonably accurate, equation of state, which at the moderately low temperatures and high densities found in the interiors of stars less massive than the Sun is substantially more accurate than its predecessor by Eggleton, Faulkner & Flannery.
659
The Internal Rotation of the Sun
TL;DR: In this paper, a detailed observational picture has been built up of the internal rotation of our nearest star, showing that the radiative interior is found to rotate roughly uniformly, unlike the predictions of stellar evolution models, which had been that the rotation rate would depend primarily on the distance from the rotation axis.
537