Binarity and the Fine-Print in the Hipparcos Catalogs: A Revised Distance Scale?, More Binaries in the Solar Neighborhood

Details Binarity and the Fine-Print in the Hipparcos Catalogs: A Revised Distance Scale?, More Binaries in the Solar Neighborhood Binarity and the Fine-Print in the Hipparcos Catalogs: A Revised Distance Scale?, More Binaries in the Solar Neighborhood

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.4204o&link_type=abstract

American Astronomical Society Meeting 203, #42.04; Bulletin of the American Astronomical Society, Vol. 35, p.1271

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present a new analysis of the astrometric and photometric errors reported in the Hipparcos and Tycho-2 catalogs. We develop new criteria to identify likely binary systems. These systems are probably small delta-m systems that are just unresolved (d<0.1") by Hipparcos.
The astrometry of several astrophysically interesting groups of stars such as Cepheids, red clump stars, and potential SIM/TPF targets are re-analyzed.

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