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α Centauri revisited: when the spectroscopic and the astrometric mass ratios become consistent

Published online by Cambridge University Press:  12 April 2016

D. Pourbaix
D. Pourbaix*
Affiliation:
Royal Observatory of Belgium, Avenue circulaire 3, B-1180 Bruxelles, Belgium, e-mail:[email protected]

Abstract

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Precise radial velocities lately published (Murdoch, Hearnshaw & Clark 1993) allow a simultaneous least-squares adjustment of all visual and spectroscopic observations. Starting with the same data as Murdoch & Hearnshaw (1993), we obtain a mass ratio that agrees better with Kamper & Wesselink’s (1978) astrometric estimate. Our results suggest upward revisions of the distance to the system as well as of the individual masses of the components.

Type
Part 8. Binary Stars
Information
International Astronomical Union Colloquium , Volume 170: Precise Stellar Radial Velocities , 1999 , pp. 340 - 346
Copyright
Copyright © Astronomical Society of the Pacific 1999

References

Archer, S. 1957, MNRAS, 117, 641 CrossRefGoogle Scholar
Batten, A.H., Fletcher, J.M., & MacCarthy, D.G. 1989, Publ. Dom. Ap. Obs., 17, 1 Google Scholar
Campbell, W.W., & Moore, J.H. 1928, Publ., of the Lick Observatory, 16, 1 Google Scholar
Demarque, P., Guenther, D.B., & van Altena, W.F. 1986, ApJ, 300, 773 CrossRefGoogle Scholar
ESA, 1997, The Hipparcos and Tycho Catalogues, ESA SP-1200Google Scholar
Glaisher, J.W.L., & Knobel, E.B. 1884, Observatory, 7, 29 Google Scholar
Heintz, W.D. 1958, Veröff. Münch, 5, 100 Google Scholar
Heintz, W.D. 1982, Observatory, 102, 42 Google Scholar
Hough, S.S. 1911, Annals of the Cape Observatory, 10, 1 Google Scholar
Isobe, T., Feigelson, E.D., Akritas, M.G., & Babu, G.J. 1990, ApJ, 364, 104 CrossRefGoogle Scholar
Jones, D.H.P., & Fisher, J.L. 1984, A&AS, 56, 449 Google Scholar
Jones, H.S. 1928, Annals of the Cape Observatory, 10, 95 Google Scholar
Kamper, K.W., & Wesselink, A.J. 1978, AJ, 83, 1653 Google Scholar
Lohse, P. 1910, Potsdam Publ., 20, 105 Google Scholar
Lunt, J. 1918, ApJ, 48, 182 CrossRefGoogle Scholar
Murdoch, K., & Hearnshaw, J.B. 1993, Observatory, 113, 79 Google Scholar
Murdoch, K.A., Hearnshaw, J.B., & Clark, M. 1993, ApJ, 413, 349 Google Scholar
Neuforge, C., Pourbaix, D., Noels, A., & Scuflaire, R. 1999, these ProceedingsGoogle Scholar
Pourbaix, D. 1998, A&AS, 131, 377 Google Scholar
Roberts, A.W. 1893, Astron. Nachr., 133, 105 Google Scholar
Roberts, A.W. 1895, Astron. Nachr., 139, 7 Google Scholar
Wesselink, A.J. 1953, MNRAS, 113, 505 Google Scholar
Wright, W.H. 1904, ApJ, 20, 140 Google Scholar