The distribution of wide binary stars on the sky

Details The distribution of wide binary stars on the sky The distribution of wide binary stars on the sky

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.237..311s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 237, March 15, 1989, p. 311-331.

Astronomy and Astrophysics

Astronomy

8

Binary Stars, Sky Surveys (Astronomy), Star Distribution, Astrography, Density (Mass/Volume), Magnitude, Spatial Distribution, Stellar Magnetic Fields

Scientific paper

A new survey of the distribution of wide binary stars of intermediate brightness in several fields totaling roughly 800 sq deg in the North and South Galactic Poles is presented. The survey provides the first large complete magnitude-limited sample which is optimized for the study of the clustering properties of field stars and for the distribution of semimajor axes of marginally bound binaries. There are large variations in the local surface density of wide binaries, with the highest wide binary density almost precisely aligned with the North Galactic Pole. A variety of statistical tests is applied to show that the binaries themselves are not distributed in a Poissonian manner, but that significant and not understood structure is apparent in the stellar distribution on the sky.

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