Results 21 to 30 of about 5,806,348 (275)
Dust formation during the interaction of binary stars by common envelope
Proceedings of the International Astronomical Union, 2023 AbstractWe performed numerical simulations of the common envelope (CE) interaction between two intermediate-mass asymptotic giant branch (AGB) stars and their low-mass companions. For the first time, formation and growth of dust in the envelope is calculated explicitly.
Luis C. Bermúdez-Bustamante +9 more
openaire +3 more sources
The post-common-envelope binary central star of the planetary nebula Ou 5 [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 We present a detailed study of the stellar and orbital parameters of the post-common envelope binary central star of the planetary nebula Ou 5. Low-resolution spectra obtained during the primary eclipse - to our knowledge the first isolated spectra of the companion to a post-common-envelope planetary nebula central star - were compared to catalogue ...
Jones, David +12 more
openaire +5 more sources
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
doaj +1 more source
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
doaj +1 more source
Tidal dissipation impact on the eccentric onset of common envelope phases in massive binary star systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Tidal dissipation due to turbulent viscosity in the convective regions of giant stars plays an important role in shaping the orbits of pre-common-envelope systems. Such systems are possible sources of transients and close compact binary systems that will eventually merge and produce detectable gravitational wave signals.
Michelle Vick +3 more
openaire +2 more sources
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
doaj +1 more source
Post-dynamical inspiral phase of common envelope evolution: Binary orbit evolution and angular momentum transport [PDF]
, 2023 After the companion dynamically plunges through the primary's envelope, the two cores remain surrounded by a common envelope and the decrease of the orbital period $P_\text{orb}$ stalls.
Damien Gagnier +3 more
core +1 more source
A common envelope binary star origin of long gamma-ray bursts [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 The stellar origin of gamma-ray bursts can be explained by the rapid release of energy in a highly collimated, extremely relativistic jet. This in turn appears to require a rapidly spinning highly magnetised stellar core that collapses into a magnetic neutron star or a black hole within a relatively massive envelope.
Christopher A. Tout +4 more
openaire +4 more sources
Post-common envelope binaries from SDSS. XVI, Long orbital period systems and the energy budget of common envelope evolution [PDF]
, 2012 Virtually all close compact binary stars are formed through common envelope (CE) evolution. It is generally accepted that during this crucial evolutionary phase a fraction of the orbital energy is used to expel the envelope.
Schwope, A. D. +12 more
core +1 more source
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
doaj +1 more source