Non-Conservative Evolution of Binary Stars
نویسندگان
چکیده
منابع مشابه
Formation and evolution of binary neutron stars
The formation and evolution of binaries which contain two neutron stars or a neutron star with a black hole companion are discussed in detail. The evolution of the distributions in orbital period and eccentricity for neutron star binaries are studied as a function of time. In the model which fits the observations of highmass binary pulsars best the deposition of orbital energy into common envel...
متن کاملThe Evolution of Wide Binary Stars
We study the orbital evolution of wide binary stars in the solar neighborhood due to gravitational perturbations from passing stars. We include the effects of the Galactic tidal field and continue to follow the stars after they become unbound. For a wide variety of initial semi-major axes and formation times, we find that the number density (stars per unit logarithmic interval in projected sepa...
متن کامل0 Non - conservative Evolution of Cataclysmic Variables
—We suggest a new mechanism to account for the loss of angular momentum in binaries with non-conservative mass exchange. It is shown that in some cases the loss of matter can result in increase of the orbital angular momentum of a binary. If included into consideration in evolutionary calculations, this mechanism appreciably extends the range of mass ratios of components for which mass exchange...
متن کاملNon-axisymmetric Evolution of Dynamically Contracting Disks and Formation of Binary Stars
Using two-dimensional hydrodynamical simulations, we followed the evolution of a dynamically-collapsing, rotating disk permeated by vertical magnetic eld. As a model of a disk, the similarity solution for isothermal, rotating, and magnetized disks are adopted. The disk deforms into a bar during its contraction. In the early stage, the deformation of the disk grows in proportion to (t 0 t) 0:6 ,...
متن کاملBinary interaction dominates the evolution of massive stars.
The presence of a nearby companion alters the evolution of massive stars in binary systems, leading to phenomena such as stellar mergers, x-ray binaries, and gamma-ray bursts. Unambiguous constraints on the fraction of massive stars affected by binary interaction were lacking. We simultaneously measured all relevant binary characteristics in a sample of Galactic massive O stars and quantified t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2011
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921311027967