Apsidal-Motion Constants for Polytropic Models
نویسندگان
چکیده
منابع مشابه
The apsidal motion in binary stars. B.V.Vasiliev
The apsidal motion in binary stars. Abstract It is usually accepted to consider an apsidal motion in binary stars as a direct confirmation that a substance inside stars is not uniformly distributed. It is shown in this paper that the apsidal motion in binary systems observation data is in a good agreement with an existence of uniform plasma cores inside stars if they consist of hydrogen-deuteri...
متن کاملInternal Structure and Apsidal Motions of Polytropic Stars in Close Binaries
We consider a synchronized, circular-orbit binary consisting of a polytrope with index n and a point-mass object, and use a self-consistent field method to construct the equilibrium structure of the polytrope under rotational and tidal perturbations. Our self-consistent field method is distinct from others in that the equilibrium orbital angular velocity is calculated automatically rather than ...
متن کاملResonant dynamic tides and apsidal motion in close binaries
The resonance of a dynamic tide with a free oscillation mode in a component of a close binary system of stars is treated by means of a two-time variable expansion procedure. The treatment is developed with respect to a frame of reference corotating with the star. Both the free oscillation mode and the dynamic tide are considered as linear, isentropic perturbations of a spherically symmetric sta...
متن کاملEvolving Constants of Motion
A critical presentation of Rovelli’s “evolving constants of motion” is given. Previous criticisms by Kuchař concerning the role of factor ordering and the non-existence of observables are dealt with and shown to be unfounded. Kuchař’s criticisms that this approach does not solve the global, multiple choice or Hilbert space problems of time are confirmed, and new insight into why this is so is o...
متن کاملSome notes on the relativistic apsidal motion of DI Herculis
DI Her is a double-lined eclipsing binary presenting a very slow apsidal motion for which the relativistic contribution is of the order of the newtonian one. The observed apsidal motion is around 4 times that predicted by stellar evolutionary models and by General Relativity. This trend is known for non-relativistic systems although in a minor scale. The magnitude of such a disagreement led som...
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: Monthly Notices of the Royal Astronomical Society
سال: 1955
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/115.1.101