Some preliminary statistical results from the eighth catalogue of the orbital elements of spectroscopic binary systems

Abstract

The Eighth Catalogue of the Orbital Elements of Spectroscopic Binary Systems has recently been published. It contains elements for 1,469 systems of which 814 are of category c (reliable) or better. The stability of the system of quality assessment, the distribution of orbital periods, the existence of a period-eccentricity relation, the distribution of longitudes of periastra and the distribution of spectroscopic binaries between populations I and II, as shown by their kinematic properties, are investigated