Roto-translation motion of the stars in close binary systems

15th Russian Youth Conference on Physics and Astronomy

物理学;天文学

Medvedeva, A.A.^1

Sternberg Astronomical Institute, Moscow State University, Universitetsky pr., 13, Moscow 119991, Russia^1

关键词: Binary systems;    Elliptical orbits;    Numerical integrations;    Relative motion;    Relative orbit;    Rotational component;    Semimajor axis;    Translation motion;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/461/1/012014/pdf
DOI  :  10.1088/1742-6596/461/1/012014

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

This article has to show that the model of p-h which is used to determine the change of the semi major axis of the relative orbit stars is incorrect and leads to large errors in the determination of semi-major axis. The new model, suitable for the elliptical orbits of the stars. To determine relative motion of stars in a close binary system in this paper uses a numerical integration of the equations of motion with the reactive forces, including the rotational component of attraction between the stars and the stream flows into the substance. The calculations of elliptical orbits of close binary stars show that the effect of the reactive force on the evolution of the orbits of stars may be different. The results can be refined by introducing other disturbing factors and making new assumptions based on observations.