Abstract
A more extended statistical material based on the “Second Catalogue d'Ephémérides de Vitesses radiales relatives” by J. Dommanget and O.Nys (1982) has made possible a new study on the distribution of the orbital poles of visual orbital pairs.
It is confirmed that orbital planes do not show any tendancy to be parallel to the galactic plane: at the contrary they show a preference to be perpendicular to it.
The most important result is: “Space seems to be divided into elements of the order of 10 to 30 parsecs where visual systems show similar orbital plane orientation”.
This confirms a result found in a preceding research (1967) concerning some ten systems surrounding the solar system.
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References
J. Dommanget, 1968, La cinématique des couples stellaires visuels dans le voisinage du Soleil, Bull. Astr., de l'Obs. R. de Belg.6, pp. 236–249;
J. Dommanget-O. Nys, 1967. — Catalogue d'éphémérides des vitesses radiales relatives des composantes des étoiles doubles visuelles dont l'orbite est connue. Comm. de l'Obs. R. de Belg. Série B, n0 15;
J. Dommanget-). Nys, 1982. — Second catalogue d'éphémérides des vitesses radiales relatives des composantes des étoiles doubles visuelles dont l'orbite est connue, Comm. de l'Obs. R. de Belg. Série B, n0 124.
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Dommanget, J. The space arrangement of the orbital planes of the visual double stars. Astrophys Space Sci 142, 171–176 (1988). https://doi.org/10.1007/BF00656199
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DOI: https://doi.org/10.1007/BF00656199