Results 21 to 30 of about 231,447 (368)
The Evolution of Massive Binary Stars [PDF]
Annual Review of Astronomy and Astrophysics, 2023 Massive stars play a major role in the evolution of their host galaxies and serve as important probes of the distant Universe. It has been established that the majority of massive stars reside in close binaries and interact with their companion stars ...
P. Marchant, J. Bodensteiner
semanticscholar +1 more source
Close Binary Companions to APOGEE DR16 Stars: 20,000 Binary-star Systems Across the Color–Magnitude Diagram [PDF]
Astrophysical Journal, 2020 Many problems in contemporary astrophysics—from understanding the formation of black holes to untangling the chemical evolution of galaxies—rely on knowledge about binary stars.
A. Price-Whelan +23 more
semanticscholar +1 more source
Photometric study of close binary stars in the M35, M67, and M71 Galactic clusters [PDF]
Contributions of the Astronomical Observatory Skalnaté Pleso, 2020 We obtained new multicolour photometry of close binary stars in the young open cluster M35, the solar-age open cluster M67, and the globular cluster M71. New observations have been carried out at the TUBITAK National Observatory (TUG) by using the 100cm (
D. Koccak, T. .Iccli, K. Yakut
semanticscholar +1 more source
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
The spins of compact objects born from helium stars in binary systems [PDF]
, 2022 The angular momentum (AM) content of massive stellar cores helps to determine the natal spin rates of neutron stars and black holes. Asteroseismic measurements of low-mass stars have proven that stellar cores rotate slower than predicted by most prior ...
J. Fuller, Wenbin Lu
semanticscholar +1 more source
The Close Binary Fraction of Solar-type Stars Is Strongly Anticorrelated with Metallicity [PDF]
Astrophysical Journal, 2018 There is now strong evidence that the close binary fraction (P < 104 days; a < 10 au) of solar-type stars (M1 ≈ 0.6–1.5 ) decreases significantly with metallicity. Although early surveys showed that the observed spectroscopic binary (SB) fractions in the
M. Moe, K. Kratter, C. Badenes
semanticscholar +1 more source
The Astronomical Journal, 2023 We present a method to identify likely visual binaries in Gaia eDR3 that does not rely on parallax or proper motion. This method utilizes the various point-spread function sizes of Two Micron All Sky Survey (2MASS)/Gaia, where at
Ilija Medan, Sébastien Lépine
doaj +1 more source
The evolution of massive binary systems [PDF]
Serbian Astronomical Journal, 2020 The evolution of massive stars in close binary systems is significantly different from single star evolution due to a series of interactions between the two stellar components.
Petrović Jelena
doaj +1 more source
Classification of close binary stars using recurrence networks. [PDF]
Chaos, 2019 Close binary stars are binary stars where the component stars are close enough such that they can exchange mass and/or energy. They are subdivided into semidetached, overcontact, or ellipsoidal binary stars.
Sandip V. George, R. Misra, G. Ambika
semanticscholar +1 more source