转动潮汐变形双星表面重力加速度的数值模拟

J4 ›› 2011, Vol. 46 ›› Issue (7): 43-47.

• Articles • Previous Articles Next Articles

The simulations of the gravitational accelerations in a rotational distorted binary system

WANG Jing-zhou ¹, SONG Han-feng^1,2

1.College of Science, Guizhou University, Guiyang 550025, Guizhou, China; 2. Joint Astronomy Research Centre of
National Astronomical ObservatoriesGuizhou University, Guizhou 550025, Guiyang, China

Received:2011-02-28 Online:2011-07-20 Published:2011-09-08

Abstract

Abstract:

Rotation and tide are two very important physical factors which affect the structure and evolution of the binary system. The distributions of the effective gravitational accelerations which are derived by the highorder perturbation potential have been simulated. The distribution is compared with the one which has been derived from the Roche model. The results show that the distortions of rotation and tide have a significant impact on the effective gravitational accelerations. The maximum can attain 10³～10⁴cm／s² with the initial parameters. Therefore, the distortions can not been neglected in discussing the structure and evolution of the close binary system.

Key words: stellar structure and evolution; rotation effect; tide effect

WANG Jing-zhou 1, SONG Han-feng1,2. The simulations of the gravitational accelerations in a rotational distorted binary system[J].J4, 2011, 46(7): 43-47.