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 ...
Charlotte Gehan, P. Gaulme, Jie Yu
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Dynamical origin of S-type planets in close binary stars [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Understanding the origin of planets that have formed in binary stars is fundamental to constrain theories of binary and planet formation. The planet occurrence rate in binaries with a separation $\lesssim 50$ AU is only $\sim$ one third that of wider ...
Giacomo Fragione
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The White Dwarf Binary Pathways Survey – IV. Three close white dwarf binaries with G-type secondary stars [PDF]
, 2020 Constraints from surveys of post common envelope binaries (PCEBs) consisting of a white dwarf plus an M-dwarf companion have led to significant progress in our understanding of the formation of close white dwarf binary stars with low-mass companions. The
M. S. Hernandez +14 more
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From dinuclear systems to close binary stars: Application to source of energy in the universe [PDF]
International Journal of Modern Physics E, 2018 The evolution of close binary stars in mass asymmetry (transfer) coordinate is considered. The conditions for the formation of stable symmetric binary stars are analyzed.
V. V. Sargsyan +3 more
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The Birth Function for Black Holes and Neutron Stars in Close Binaries [PDF]
Astrophysical Journal, 2020 The mass function for black holes and neutron stars at birth is explored for mass-losing helium stars. These should resemble, more closely than similar studies of single hydrogen-rich stars, the results of evolution in close binary systems.
S. E. Woosley +2 more
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Radial Velocity Studies of Southern Close Binary Stars. II. Spring/Summer Systems [PDF]
, 2006 Radial velocity measurements and sine-curve fits to the orbital velocity variations are presented for 14 close binary stars, S Ant, TT Cet, TW Cet, AA Cet, RW Dor, UX Eri, YY Eri, BV Eri, CT Eri, SZ Hor, AD Phe, TY Pup, HI Pup, and TZ Pyx. All are double-
H. W. Duerbeck, S. M. Ruciński
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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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Comparison of Gaia and Hipparcos parallaxes of close visual binary stars and the impact on determinations of their masses [PDF]
Publications Astronomical Society of Australia, 2021 Precise measurement of the fundamental parameters of stellar systems, including mass and radius, depends critically on how well the stellar distances are known.
M. Al-Wardat +3 more
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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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