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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
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The planetary nebula IC 4776 and its post-common-envelope binary central star [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We present a detailed analysis of IC 4776, a planetary nebula displaying a morphology believed to be typical of central star binarity. The nebula is shown to comprise a compact hourglass-shaped central region and a pair of precessing jet-like structures.
Boffin, Henri M. J. +7 more
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The Astrophysical Journal Letters, 2023 Common envelope (CE) evolution is an outstanding open problem in stellar evolution, critical to the formation of compact binaries including gravitational-wave sources.
M. Renzo +7 more
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The Impact of Angular Momentum Loss on the Outcomes of Binary Mass Transfer
The Astrophysical Journal, 2023 We use the rapid binary population synthesis code COMPAS to investigate commonly used prescriptions for the determination of mass transfer stability in close binaries and the orbital separations after stable mass transfer.
Reinhold Willcox +3 more
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Wobbling Jets in Common Envelope Evolution
The Astrophysical Journal, 2023 We find that the convective motion in the envelopes of red supergiant (RSG) stars supplies a non-negligible stochastic angular momentum to the mass that a secondary star accretes in a common envelope evolution (CEE), such that jets that the secondary ...
Noam Dori, Ealeal Bear, Noam Soker
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SCATTER: A New Common Envelope Formalism
The Astrophysical Journal, 2023 One of the most mysterious astrophysical states is the common envelope (CE) phase of binary evolution, in which two stars are enshrouded by the envelope shed by one of them. Interactions between the stars and the envelope shrinks the orbit.
Rosanne Di Stefano +4 more
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Galaxies, 2018 The increase in discovered close binary central stars of planetary nebulae is leading to a sufficiently large sample to begin to make broader conclusions about the effect of close binary stars on common envelope evolution and planetary nebula formation ...
Todd Hillwig
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Evolution of Accreting Neutron Star Common Envelopes and Their Nucleosynthesis Possible P-nuclide Production [PDF]
EPJ Web of Conferences, 2023 In a binary system, a short lived phase called a common envelope can occur in which both stars share the envelope of the primary. During this phase, there is the opportunity for nucleosynthesis to occur at high temperatures and densities in the accretion
Abrahams Sophie E. D. +4 more
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Binarity as the solution to the stellar evolution enigma posed by NGC 6791 [PDF]
, 2017 Binary evolution is investigated as the source for the extreme horizontal branch (EHB) stars in the old and metal rich open cluster NGC~6791. Employing an updated version of our binary stellar evolution code we demonstrate that EHB stars naturally emerge
Benvenuto, Omar G., Carraro, Giovanni
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The Hot R Coronae Borealis Star DY Centauri is a Binary [PDF]
, 2012 The remarkable hot R Coronae Borealis (RCB) star DY Cen is revealed to be the first and only binary system to be found among the RCB stars and their likely relatives, including the extreme helium stars and the hydrogen-deficient carbon stars.
Garcia-Hernandez, D. A. +5 more
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