Fast rotating stars resulting from binary evolution will often appear to be single [PDF]
Rapidly rotating stars are readily produced in binary systems. An accreting star in a binary system can be spun up by mass accretion and quickly approach the break-up limit.
Cantiello+6 more
core +3 more sources
Research on close binary systems has continued at a high level during the past triennium, although the rate of growth is noticeably slower – probably reflecting the cutbacks in funds to which many of us are subject. There have also been changes of emphasis within the field, which are commented on in the pages that follow.
J. Andersen+12 more
openaire +1 more source
The close binary fraction as a function of stellar parameters in APOGEE: a strong anticorrelation with α abundances [PDF]
We use observations from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey to explore the relationship between stellar parameters and multiplicity.
C. Mazzola+22 more
semanticscholar +1 more source
POSYDON: A General-purpose Population Synthesis Code with Detailed Binary-evolution Simulations
Most massive stars are members of a binary or a higher-order stellar system, where the presence of a binary companion can decisively alter their evolution via binary interactions. Interacting binaries are also important astrophysical laboratories for the
Tassos Fragos+24 more
doaj +1 more source
Evolution of Close Neutron Star Binaries [PDF]
13 pages, LaTeX, 15 figures, to appear in Prog. Theor. Phys.
Yasufumi Kojima, Wataru Ogawaguchi
openaire +3 more sources
The Search for Close Binary Evolved Stars [PDF]
AbstractWe report on a search for short-period binary systems composed of pairs of evolved stars. The search is being carried out concurrently with a program to characterize the kinematical properties of two different samples of stars. Each sample has produced one close binary candidate for which further spectroscopic observations are planned.
James Liebert, Rex A. Saffer
openaire +3 more sources
Adiabatic Mass Loss in Binary Stars. III. From the Base of the Red Giant Branch to the Tip of the Asymptotic Giant Branch [PDF]
The distinguishing feature of the evolution of close binary stars is the role played by the mass exchange between the component stars. Whether or not the mass transfer is dynamically stable is one of the essential questions in binary evolution.
H. Ge+3 more
semanticscholar +1 more source
The Eclipses of the Close Binary Star BE UMa [PDF]
BE UMa is a close binary star, not transferring mass, with an extremely hot primary star irradiating the inner face of the cool secondary star. The light curve shows a large-amplitude, sinusoidal variation with a period of 2.29 d, and an eclipse that is centered on the minimum of the variation [1], [3].
E. Zhang+2 more
openaire +2 more sources
The BinaMIcS project: understanding the origin of magnetic fields in massive stars through close binary systems [PDF]
It is now well established that a fraction of the massive (M > 8 M⊙) star population hosts strong, organised magnetic fields, most likely of fossil origin. The details of the generation and evolution of these fields are still poorly understood.
E. Alecian+12 more
semanticscholar +1 more source
Binary Central Stars of Planetary Nebulae Discovered Through Photometric Variability. III. The Central Star of Abell 65 [PDF]
A growing number of close binary stars are being discovered among central stars of planetary nebulae. Recent and ongoing surveys are finding new systems and contributing to our knowledge of the evolution of close binary systems.
Frew, David J+4 more
core +3 more sources