Results 31 to 40 of about 290,820 (278)
Parasite common envelope evolution by triple-star systems [PDF]
ABSTRACT We study a scenario in which a giant wide tertiary star engulfs and forces a tight binary system of a white dwarf (WD) and a main-sequence (MS) star to enter a common envelope evolution (CEE) with each other, and then unbinds the WD–MS common envelope.
Noam Soker, Ealeal Bear
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Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars
The stability criteria of rapid mass transfer and common-envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio, and orbital distribution of many important systems, such as X-ray binaries, type Ia supernovae, and
Hongwei Ge +5 more
doaj +1 more source
Low-Mass Binary Induced Outflows from Asymptotic Giant Branch Stars [PDF]
A significant fraction of planetary nebulae (PNe) and proto-planetary nebulae (PPNe) exhibit aspherical, axisymmetric structures, many of which are highly collimated.
Alexander +71 more
core +3 more sources
On the Formation and Evolution of Common Envelope Systems
We discuss the formation of a common envelope system following dynamically unstable mass transfer in a close binary, and the subsequent dynamical evolution and final fate of the envelope.
Livio, Mario, Rasio, Frederic A.
core +2 more sources
Binarity as the solution to the stellar evolution enigma posed by NGC 6791 [PDF]
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
core +2 more sources
Comments on the Final Orbital Separation in Common Envelope Evolution
I study some aspects of common envelope evolution, where a compact star enters the envelope of a giant star. I show that in some binary systems under a narrow range of parameters, a substantial fraction of the giant stellar envelope is lost before the ...
Soker, Noam
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Common Envelope Evolution through Planetary Nebula Eyes
The common envelope interaction is responsible for evolved close binaries. Among them are a minority of central stars of planetary nebula (PN). Recent observational results, however, point to most PN actually being in binary systems. We therefore ask the question if it is feasible that most, or even all Galactic PN derive from a common envelope ...
De Marco, Orsola, Moe, Maxwell
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The first sub-70 minute non-interacting WD-BD system: EPIC212235321 [PDF]
We present the discovery of the shortest-period, non-interacting, white dwarf-brown dwarf post-common-envelope binary known. The K2 light curve shows the system, EPIC 21223532 has a period of 68.2 min and is not eclipsing, but does show a large ...
A Chaushev +73 more
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Common Envelope Evolution Redux [PDF]
25 pages, 6 figures. To appear in "Short Period Binary Stars", ed. E.F. Milone, D.A. Leahy, & D.W. Hobill (Springer)
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Planetary nebula progenitors that swallow binary systems
I propose that some irregular `messy' planetary nebulae owe their morphologies to triple-stellar evolution where tight binary systems evolve inside and/or on the outskirts the envelope of asymptotic giant branch (AGB) stars.
Soker, Noam
core +1 more source

