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Observational Selection in Spectroscopic Binary Eccentricities

Published online by Cambridge University Press:  12 April 2016

M.S. Staniucha
M.S. Staniucha*
Affiliation:
Warsaw University Observatory and N. Copernicus Astronomical Center, Warsaw, Poland

Abstract

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The discovery-and-identification probability for different shaped orbits of spectroscopic binary stars is estimated. The eccentricity distribution observed in the sample of ~1000 binaries with known orbits and appearing as strongly peaked toward e=0 is corrected for observational selection effects. The resulting e-distribution seems to be flat for e in the range ~0.05-0.6 with some excess of circular (or almost circular) orbits and a deficiency of orbits with e ≲ 0.6.

Type
Part II: Evolutionary Trends in Wide Binary Systems
Information
International Astronomical Union Colloquium , Volume 69: Binary and Multiple Stars as Tracers of Stellar Evolution , 1982 , pp. 133 - 143
Copyright
Copyright © Reidel 1982

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