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-feng1,2   

  1. 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


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

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