Results 1 to 10 of about 5,815 (157)
Wide binary stars with non-coeval components
Open Astronomy, 2022 We have the estimated masses of components of visual binaries from their spectral classification. We have selected pairs in which the less massive component looks more evolved. Spectral observations of some of these pairs were made, and at least one pair,
Malkov Oleg, Kniazev Alexey
doaj +5 more sources
Wide-binary Stars Formed in the Turbulent Interstellar Medium
The Astrophysical Journal Letters, 2023 The ubiquitous interstellar turbulence regulates star formation and the scaling relations between the initial velocity differences and the initial separations of stars.
Siyao Xu +3 more
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Testing gravity with wide binary stars like α Centauri [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 31 pages, 20 figures, 6 tables.
Hongsheng Zhao +2 more
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Planetary system disruption by Galactic perturbations to wide binary stars [PDF]
Nature, 2013 Accepted manuscript to appear in Nature w/ included supplement; 32 pages, 14 figures, 2 ...
Sean Raymond, Raymond Sean N
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Formation of wide binary stars from adjacent cores [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 Wide gravitationally bound pairs of stars can be formed from adjacent prestellar cores that happen to move slowly enough relative to each other. These binaries are remnants of the primordial clustering. It is shown that the expected fraction of wide bound pairs in low-density star formation regions can be larger than the fraction of wide pairs in the ...
Andrei Tokovinin
exaly +3 more sources
VERY WIDE BINARY STARS AS THE PRIMARY SOURCE OF STELLAR COLLISIONS IN THE GALAXY [PDF]
Astrophysical Journal, 2014 We present numerical simulations modeling the orbital evolution of very wide binaries, pairs of stars separated by over ~1000 AU. Due to perturbations from other passing stars and the Milky Way's tide, the orbits of very wide binary stars occasionally become extremely eccentric, which forces close encounters between the companion stars (Kaib et al ...
Sean Raymond
exaly +3 more sources
Mass Ratios in Wide Binary Stars
Astrophysical Journal, 1997 The mass ratio distribution N(q) in wide binary stars has been found by Abt to depend on the spectral type of the primary. The stars with an O-type primary are rather equal in mass in comparison with binaries that have solar-type primaries. We investigate whether this results from the theory of stellar dynamics if the binary stars are remnants of three-
exaly +2 more sources
Extremely Wide Pairs in the World of Binary Stars
Astronomy Reports, 2023 Abstract This article raises the question of the possibility of identifying stellar pairs in which one of the components belongs to the family of near-nuclear central S-stars and the other belongs to a population of hypervelocity stars (HVSs).
G. N. Dremova +2 more
openaire +1 more source
Born to Be Wide: The Distribution of Wide Binaries in the Field and Soft Binaries in Clusters
The Astrophysical Journal, 2023 Most stars, binaries, and higher-multiplicity systems are thought to form in stellar clusters and associations that later dissociate. Very wide binaries can be easily disrupted in clusters due to dynamical evaporation (soft binaries) and/or tidal ...
Mor Rozner, Hagai B. Perets
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The evolution of wide binary stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 We study the orbital evolution of wide binary stars in the solar neighborhood due to gravitational perturbations from passing stars. We include the effects of the Galactic tidal field and continue to follow the stars after they become unbound. For a wide variety of initial semi-major axes and formation times, we find that the number density (stars per ...
Jiang, Yan-Fei, Tremaine, Scott
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