Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ap%26ss.193...29h&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 193, no. 1, July 1992, p. 29-46. Research supported by ASTRON.
Astronomy and Astrophysics
Astrophysics
5
Binary Stars, Early Stars, Late Stars, Orbital Mechanics, Stellar Spectra, Astronomical Catalogs, Line Spectra, Main Sequence Stars, Radial Velocity, Statistical Analysis
Scientific paper
The statistical properties of several binary star parameters derived from the Eighth Catalog of Spectroscopic Binary Stars are presented. Early-type binaries in the catalog have on average higher radial-velocity amplitudes, shorter periods, and smaller semimajor axes than late-type binaries. The latter have relatively more eccentric orbits. The mass ratio distribution of single-lined spectroscopic binaries is, for all samples, characterized by a decrease in the number of systems according to a power law. The mass ratio distribution of double-lined spectroscopic binaries is for all samples but one, characterized by an increase in numbers according to a power law.
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