The mass-ratio distribution of the spectroscopic binaries in the Pleiades

Details The mass-ratio distribution of the spectroscopic binaries in the Pleiades The mass-ratio distribution of the spectroscopic binaries in the Pleiades

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...282..801g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 282, no. 3, p. 801-803

Astronomy and Astrophysics

Astronomy

40

Binary Stars, Mass Distribution, Mass Ratios, Pleiades Cluster, Radial Velocity, Stellar Mass, Stellar Orbits, Algorithms, Astronomical Photometry, Iterative Solution, Sky Surveys (Astronomy), Stellar Evolution, Stellar Models

Scientific paper

This is a short study of the mass-ratio distribution of the short-period binaries in the Pleiades. The study is based on a complete, though extremely small, sample of binaries, out of the thorough radial-velocity survey of Mermilliod et al. (1992). The sample of nine spectroscopic binaries is analyzed with a recently published algorithm, which is free of the disadvantages of some of the previous approaches to the problem. The emerging trend of the mass-ratio distribution is flat, or perhaps slightly rising toward unity, similar to that of the nearby binaries with G-dwarf primaries recently found.

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