Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Delocalization effect on the relaxation of inhomogeneous gravitational systems

  • 26 Accesses

  • 6 Citations

Abstract

The correct description of encounters in anN-body gravitational system introduces a variety of effects which are ignored in the standard discussions of the relaxation proces. The present parer gives an evaluation of the delocalization effect, corresponding to the fact that the distribution functions for particles engaged in an encounter are necessarily to be evaluated at distinct points in space. The calculation is carried through in the framework of the weak-coupling theory of binary encounters and gives a typical increase in the relaxation time of about 10%.

This is a preview of subscription content, log in to check access.

References

  1. Balescu, R.: 1975,Equilibrium and Non-Equilibrium Statistical Mechanics, Wiley, New York.

  2. Chandrasekhar, S.: 1942,Principles of Stellar Dynamics, University of Chicago Press and Dover Press, New York.

  3. Gilbert, I.: 1970,Astrophys. J. 159, 239.

  4. Hénon, M.: 1973, in L. Martinet and M. Mayor (eds.),Dynamical Structure and Evolution of Stellar Systems, Geneva Observatory.

  5. Hénon, M.: 1975,IAU Symp. 69, 133.

  6. Severne, G. and Haggerty, M.: 1976,Astrophys. Space Sci. 45, 287 (ref. I).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Parisot, J.-., Severne, G. Delocalization effect on the relaxation of inhomogeneous gravitational systems. Astrophys Space Sci 61, 121–128 (1979). https://doi.org/10.1007/BF00645796

Download citation

Keywords

  • Distribution Function
  • Relaxation Time
  • Distinct Point
  • Correct Description
  • Gravitational System