Results and Prospects for Distance Measurement by Means of Binary Stars

Details Results and Prospects for Distance Measurement by Means of Binary Stars Results and Prospects for Distance Measurement by Means of Binary Stars

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..336..199t&link_type=abstract

Cosmic Abundances as Records of Stellar Evolution and Nucleosynthesis in honor of David L. Lambert, ASP Conference Series, Vol.

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Distances to binary stars determined by the orbital parallax method and taken from the literature are compared with the Hipparcos distances to the same stars. For distances of less than ˜ 100 pc the agreement between the orbital parallax and Hipparcos distances is generally excellent. But a discussion of the distance to the Pleiades (d = 135 pc) shows that at distances greater than ˜ 100 pc the Hipparcos distances are less accurate than claimed. It is found that the presently available orbital parallax-based distances span the range 10 ≤ d ≤ 300 pc and have a typical accuracy of ± 2 %. Prospects for improvement both in the number of distances measured by orbital parallax and their accuracy are good.

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