Results 41 to 50 of about 480,915 (121)
Physical Review Research, 2021 Gravitational waves from neutron star binary inspirals contain information on strongly interacting matter in unexplored, extreme regimes. Extracting this requires robust theoretical models of the signatures of matter in the gravitational-wave signals due
Jan Steinhoff +3 more
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Rethinking Thorne–Żytkow Object Formation: Assembly via Common Envelope in Field Binaries
The Astrophysical JournalThorne–Żytkow objects (TŻOs), hypothetical merger products in which a neutron star is embedded in a stellar core, are traditionally considered steady-state configurations. Their assembly, especially through dynamical channels, is not well understood. The
Rosa Wallace Everson +3 more
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The Astrophysical Journal LettersType Ia supernovae (SNe Ia) arise from the thermonuclear explosions of white dwarfs in multiple-star systems. A rare subclass of SNe Ia exhibit signatures of interaction with circumstellar material (CSM), allowing for direct constraints on companion ...
Geoffrey Mo +12 more
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Nonlinear Dynamics, Lorenz Model and Formation of Binary Stars [PDF]
arXiv, 2008 Based on the Lorenz model derived from the equations of hydrodynamics of nebula, we discuss the formation of binary stars by the qualitative analysis theory of nonlinear equation. Here the two wings in the Lorenz model form just the binary stars, whose Roche surface is result of evolution under certain condition.
arxiv
The Effect of Donor Star Rejuvenation on Common Envelope Evolution
The Astrophysical JournalIn close binary star systems, common envelope evolution (CEE) may occur after a previous phase of mass transfer. Some isolated formation channels for double neutron star binaries suggest that the donor of CEE was the accretor of a previous phase of ...
C. Landri +4 more
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Formation of Compact Binaries in Globular Clusters [PDF]
arXiv, 2001 We report here on two complementary population synthesis studies which relate directly to the formation and evolution of neutron star binaries in globular clusters. In the first, we compute the probability of retaining neutron stars in globular clusters, and quantitatively confirm the idea that the retention fraction for neutron stars born in binary ...
arxiv
The incidence of stellar mergers and mass gainers among massive stars [PDF]
, 2013 Because the majority of massive stars are born as members of close binary systems, populations of massive main-sequence stars contain stellar mergers and products of binary mass transfer. We simulate populations of massive stars accounting for all major binary evolution effects based on the most recent binary parameter statistics and extensively ...
arxiv +1 more source
A Deficit of Massive White Dwarfs in Gaia Astrometric Binaries
The Astrophysical Journal LettersThe third data release of Gaia introduced a large catalog of astrometric binaries, out of which about 3200 are likely main-sequence stars with a white dwarf (WD) companion.
Na’ama Hallakoun +4 more
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Predicting the Fate of Binary Red Giants Using the Observed Sequence E Star Population: Binary Planetary Nebula Nuclei and Post-RGB Stars [PDF]
, 2012 Sequence E variables are close binary red giants that show ellipsoidal light variations. They are likely the immediate precursors of planetary nebulae (PNe) with close binary central. We have made a Monte Carlo simulation to determine the fraction of red giant binaries that go through a common envelope (CE) event leading to the production of a close ...
arxiv +1 more source
Mass-transfer Outbursts Reborn: Modeling the Light Curve of the Dwarf Nova EX Draconis
The Astrophysical JournalEX Draconis is an eclipsing dwarf nova that shows outbursts with moderate amplitude (≃2 mag) and a recurrence timescale of ≃20–30 days. Dwarf novae outbursts are explained in terms of either a thermal-viscous instability in the disc or an instability in ...
Wagner Schlindwein, Raymundo Baptista
doaj +1 more source