The Fundamental Straight Line of Galactic Globular Clusters

Preprint

9 February 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/9802100

Abstract

A detailed analysis of the Fundamental Plane properties of Globular Cluster is performed. If a sample of ordinary King-model clusters is considered, it is found that, in the "S-space" defined by the parameters (log r_c, log sigma_0, mu_V(0)), their configuration is similar to a straight line. It is shown that, with rather simple assumptions, a simultaneous explanation of all the observed correlations between S-space parameters can be provided. It is suggested that, at earlier times, Globular Clusters populated a line in the three-dimensional S-space, i.e. their original dynamical structure was fully determined by a single physical parameter.

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All Related Versions

Version 1, 1998-02-09, ArXiv
Published version: New Astronomy, 3 (4), 219.

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