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Fast rotating stars resulting from binary evolution will often appear to be single [PDF]
, 1998 Rapidly rotating stars are readily produced in binary systems. An accreting star in a binary system can be spun up by mass accretion and quickly approach the break-up limit.
C Carathtodory +7 more
core +4 more sources
Hypervelocity binary stars: smoking gun of massive binary black holes [PDF]
Astrophys.J.666:L89-L92,2007, 2007 The hypervelocity stars recently found in the Galactic halo are expelled from the Galactic center through interactions between binary stars and the central massive black hole or between single stars and a hypothetical massive binary black hole.
D. N. C. Lin +4 more
core +2 more sources
Star formation environments and the distribution of binary separations [PDF]
, 1998 We have carried out K-band speckle observations of a sample of 114 X-ray selected weak-line T Tauri stars in the nearby Scorpius-Centaurus OB association. We find that for binary T Tauri stars closely associated to the early type stars in Upper Scorpius,
Brandner W. +9 more
core +3 more sources
Asteroseismology of binary stars and a compilation of core overshoot and rotational frequency values of OB stars [PDF]
, 2013 After a brief introduction into the asteroseismic modelling of stars, we provide a compilation of the current seismic estimates of the core overshooting parameter and of the rotational frequency of single and binary massive stars. These important stellar
Aerts, Conny
core +3 more sources
The Evolution of Compact Binary Star Systems [PDF]
Living Reviews in Relativity, 2014 We review the formation and evolution of compact binary stars consisting of white dwarfs (WDs), neutron stars (NSs), and black holes (BHs). Mergings of compact-star binaries are expected to be the most important sources for forthcoming gravitational-wave
Konstantin A. Postnov, Lev R. Yungelson
doaj +7 more sources
Modelling of W UMa-type variable stars
South African Journal of Science, 2010 W Ursae Majoris (W UMa)-type variable stars are over-contact eclipsing binary stars. To understand how these systems form and evolve requires observations spanning many years, followed by detailed models of as many of them as possible.
P. Skelton, D. Smits
doaj +13 more sources
The Astronomical Journal, 2023 The properties of the interacting, eccentric orbit binary V1507 Cyg (HD187399) are examined with spectra that cover wavelengths from 0.63–0.68 μ m. The spectrum of the brightest star is similar to that of the B8 I star β Ori, although with absorption ...
T. J. Davidge
doaj +1 more source
The Astrophysical Journal, 2023 The first detailed photometric and spectroscopic study of G-type short-period binary NY Boo is presented. The radial velocity curve was obtained by the cross-correlation function (CCF) method based on LAMOST and SDSS spectra, which derived its mass ratio
Fangbin Meng +5 more
doaj +1 more source
Stability analysis of the spin evolution fix points in inspiraling compact binaries with black hole, neutron star, gravastar, or boson star components [PDF]
Phys. Rev. D 103, 084025 (2021), 2022 Based on the secular spin evolution of black holes, neutron stars, gravastars, or boson stars in precessing compact binaries on eccentric orbit, we identify the aligned and more generic coplanar configurations of the spins and orbital angular momentum as fix points.
arxiv +1 more source
POSYDON: A General-purpose Population Synthesis Code with Detailed Binary-evolution Simulations
The Astrophysical Journal Supplement Series, 2023 Most massive stars are members of a binary or a higher-order stellar system, where the presence of a binary companion can decisively alter their evolution via binary interactions. Interacting binaries are also important astrophysical laboratories for the
Tassos Fragos +24 more
doaj +1 more source