Results 31 to 40 of about 570,998 (306)
Surface magnetism of rapidly rotating red giants: Single versus close binary stars [PDF]
Astronomy & Astrophysics, 2022 According to dynamo theory, stars with convective envelopes efficiently generate surface magnetic fields, which manifest as magnetic activity in the form of starspots, faculae, flares, when their rotation period is shorter than their convective turnover ...
C. Gehan, P. Gaulme, Jie Yu
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The origin and evolution of magnetic white dwarfs in close binary stars [PDF]
Nature Astronomy, 2021 The origin of magnetic fields in white dwarfs remains a fundamental unresolved problem in stellar astrophysics. In particular, the very different fractions of strongly (more than about a megagauss) magnetic white dwarfs in evolutionarily linked ...
M. Schreiber +4 more
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Neutron Stars in Close Binary Systems
The Astrophysical Journal, 1974 J. C. Wheeler, C. F. McKee, M. Lecar
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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
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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
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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
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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
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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
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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
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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
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