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Collisional Relaxation: A New Approach

Published online by Cambridge University Press:  04 August 2017

G. Severne  and
M. Luwel
G. Severne
Affiliation:
Physics Dept., U. of Brussels (V.U.B.), Pleinlaan 2, 1050 Brussels, Belgium
M. Luwel
Affiliation:
Physics Dept., U. of Brussels (V.U.B.), Pleinlaan 2, 1050 Brussels, Belgium

Abstract

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Recent numerical simulations for 1-dimensional systems have shown that the relaxation time due to encounters is far shorter than the generally accepted estimate. To account for this, a new approach to the theory is necessary. The analysis of encounters presented here is characterized by the retention of periodic trajectories in the mean field. The kinetic equation obtained yields a relaxation time scale in qualitative agreement with the simulations. The analysis can be extended to the 3-dimensional case, and preliminary results predict here also a reduction of the relaxation time.

Type
May 30: Model System in the Point-Mass Approximation
Information
Symposium - International Astronomical Union , Volume 113: Dynamic of Stars Clusters , 1985 , pp. 339 - 341
Copyright
Copyright © Reidel 1985 

References

1. Chandrasekhar, S.: 1942, “Principles of Stellar Dynamics”, Dover, N.Y. Google Scholar
2. Luwel, M., Severne, G., and Rousseeuw, P.: 1984, Ap. Space Sci. 100, 261.Google Scholar
3. Severne, G., Luwel, M., and Rousseeuw, P.: 1984, Astr. Ap. in press.Google Scholar
4. Severne, G. and Luwel, M.: 1984, Phys. Lett. in press.Google Scholar
5. Farouki, R., Hoffman, G., and Salpeter, E., Ap. J. 271, 11.Google Scholar