Maximum separations among cataloged binaries

Details Maximum separations among cataloged binaries Maximum separations among cataloged binaries

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...331..922a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 331, Aug. 15, 1988, p. 922-931.

Astronomy and Astrophysics

Astrophysics

33

Astronomical Catalogs, Binary Stars, Dwarf Stars, Main Sequence Stars, Molecular Clouds, Early Stars, Electrophotometers, Stellar Magnitude, Stellar Spectrophotometry

Scientific paper

The author classified many of the widest common-motion binaries listed in the Aitken catalog and lists 72 physical pairs with known photoelectric photometry, 31 physical pairs without good photometry, and 27 optical pairs. It is found that as a function of primary types, the physical systems have upper limits to their separations that are exceeded by some of the optical pairs. The fact that optical pairs occur with larger separations implies that the limits are real ones and not just catalog limitations. Those limits (in AU) are expressed by 2500 M11.54 (M1 mass of the primary in solar units) for B5 - K0 main-sequence primaries.

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