SIMBAD references

2000A&A...356..529A - Astronomy and Astrophysics, volume 356, 529-540 (2000/4-2)

Wide binaries among high-velocity and metal-poor stars.


Abstract (from CDS):

A catalogue of 122 wide binaries is presented. The list was compiled by searching for common proper-motion companions to the more than 1200 high-velocity and metal-poor stars of Schuster and collaborators. We study the separations for the wide binaries (<a≫25AU), and find that they follow Oepik's distribution all the way up to 10000AU. A subgroup of them, the ones with the most halo-like orbits, follow Oepik's distribution up to 20000AU. The galactic orbits of all systems are calculated, and galactic orbital parameters are used, along with the metallicites, to assign each one to the old thin disk, the thick disk, or the halo population.

Abstract Copyright:

Journal keyword(s): catalogs - stars: binaries: general - stars: Population II - Galaxy: halo

VizieR on-line data: <Available at CDS (J/A+A/356/529): catalog.dat>

Simbad objects: 119

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