Results 11 to 20 of about 31,802 (281)
Bipolar planetary nebulae from common-envelope evolution of binary stars
Astronomy & Astrophysics, 2022 Asymmetric shapes and evidence for binary central stars suggest a common-envelope origin for many bipolar planetary nebulae. The bipolar components of the nebulae are observed to expand faster than the rest, and the more slowly expanding material has been associated with the bulk of the envelope ejected during the common-envelope phase of a stellar ...
Patrick A. Ondratschek +7 more
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Common-envelope ejection in massive binary stars [PDF]
Astronomy & Astrophysics, 2016 13 pages, 7 figures, A&A ...
Kruckow, M. +5 more
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Post-common envelope binary stars, radiative levitation, and blue large-amplitude pulsators [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Following the recent discovery of a new class of pulsating star, the blue large-amplitude pulsators (BLAPs), pulsation stability analysis was carried out on evolutionary models of post-common envelope (CE) ejection stars of 0.3 and 0.46 solar masses.
Conor M Byrne, C Simon Jeffery
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The common envelope phase in the evolution of binary stars
The Astrophysical Journal, 1988 The common envelope phase in the evolution of binary systems is examined. Three parameters are identified which characterize the efficiency of energy deposition, the importance of three-dimensional effects, and the efficiency of spin-up of the envelope. It is demonstrated that the efficiency of deposition of orbital energy into envelope ejection can be
Mario Livio, Noam Soker
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Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Post-common envelope binaries (PCEBs) containing a white dwarf (WD) and a main-sequence (MS) star can constrain the physics of common envelope evolution and calibrate binary evolution models. Most PCEBs studied to date have short orbital periods (Porb ≲ 1 d), implying relatively inefficient harnessing of binaries’ orbital energy
Natsuko Yamaguchi +9 more
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A pulsar-helium star compact binary system formed by common envelope evolution
ScienceA stellar common envelope occurs in a binary system when the atmosphere of an evolving star expands to encompass an orbiting companion object. Such systems are predicted to evolve rapidly, ejecting the stellar envelope and leaving the companion in a tighter orbit around a stripped star.
Z. L. Yang +35 more
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The Evolution of Compact Binary Star Systems
Living Reviews in Relativity, 2006 We review the formation and evolution of compact binary stars consisting of white dwarfs (WDs), neutron stars (NSs), and black holes (BHs). Binary NSs and BHs are thought to be the primary astrophysical sources of gravitational waves (GWs) within the ...
Yungelson, Lev R., Postnov Konstantin A.
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Modeling High Mass X-Ray Binaries to Double Neutron Stars through Common Envelope Evolution
The Astrophysical JournalWe present detailed evolutionary simulations of wide binary systems with high-mass (8–20 M _⊙ ) donor stars and a 1.4 M _⊙ neutron star. Mass transfer in such binaries is dynamically unstable, and common envelope (CE) evolution is followed.
Yu-Dong Nie +5 more
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Are extreme asymptotic giant branch stars post-common envelope binaries? [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2021 ABSTRACT Modelling dust formation in single stars evolving through the carbon-star stage of the asymptotic giant branch (AGB) reproduces well the mid-infrared colours and magnitudes of most of the C-rich sources in the Large Magellanic Cloud (LMC), apart from a small subset of extremely red objects (EROs).
F Dell’Agli +8 more
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Nucleosynthetic yields from neutron stars accreting in binary common envelopes [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 21 pages, 14 ...
J Keegans +8 more
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