Statistics of binary stars. I - Multivariate analysis of spectroscopic binaries

Details Statistics of binary stars. I - Multivariate analysis of spectroscopic binaries Statistics of binary stars. I - Multivariate analysis of spectroscopic binaries

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...124..313f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 124, no. 2, Aug. 1983, p. 313-321. Research supported by the Consiglio Naziona

Astronomy and Astrophysics

Astrophysics

10

Binary Stars, Cluster Analysis, Multivariate Statistical Analysis, Orbital Elements, Stellar Mass, Stellar Motions, Astronomical Spectroscopy, Eccentric Orbits, Hertzsprung-Russell Diagram, Mass Ratios

Scientific paper

By multivariate statistical analysis the authors point out correlations among physical parameters of spectroscopic binary systems. The best clustering has been outlined allowing a direct interpretation in terms of H.R. diagram in the maximum variance plane. Cluster analysis confirms the probable period-eccentricity relation. The existence of a well defined cluster with strongly unbalanced masses supports the hypothesis of an original bimodality in the mass ratio distribution.

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