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Minimum of the Eccentricity of the Galactic Globular Cluster Orbits

Published online by Cambridge University Press:  04 August 2017

Jacques Colin
Jacques Colin*
Affiliation:
Besançon Observatory, 25000 BESANCON (France)

Abstract

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We determine if the orbits of the galactic globular clusters can be circular, using a spherical logarithmic potential. If they are not, we calculate their perigalactic distances and we deduce a pseudo-eccentricity. Using a numerical and geometrical method, we obtain the minimum of all the possible pseudo-eccentricities for each cluster. The corresponding perigalactic distances are compared with the values given by Innanen et al. (1983) with a different method.

Type
May 30: Model System in the Point-Mass Approximation
Information
Symposium - International Astronomical Union , Volume 113: Dynamic of Stars Clusters , 1985 , pp. 309 - 312
Copyright
Copyright © Reidel 1985 

References

Harris, W.E. and Racine, R. (1979) Ann. Rev. Astron. Astrophys. 17, 241.Google Scholar
Innanen, K.A., Harris, W.E., Webbink, R.F. (1983) Astron. J. 88, 338.CrossRefGoogle Scholar
Rastorguev, A.S. and Surdin, V.G. (1980) Astron. Tsirk., N° 1102.Google Scholar