Hostname: page-component-7479d7b7d-wxhwt Total loading time: 0 Render date: 2024-07-12T10:22:08.432Z Has data issue: false hasContentIssue false
  • English
  • Français

Un Diagramme Fondamental Luminosite-Type Spectral Pour Les Etoiles Doubles

Published online by Cambridge University Press:  04 August 2017

P. Couteau
P. Couteau*
Affiliation:
Observatoire de Nice

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In the Hertzsprung-Russell diagram, which is not well known for the binary stars, we can use the unit-mass brightness instead of the brightness itself. For each component this parameter can be obtained using the photometry and the orbital elements of the system. It is only through the orbital constant that the parallax comes in the calculation. This new diagram can be applied to any component of binary stars which orbit and class are known. By using a mass luminosity relationship one can define the zero-age main sequence on the diagram. The evolved stars can thus easily be noticed on the diagram; the mean age of the solar vicinity binary systems should be about 1010 years.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 111: Calibration of Fundamental Stellar Quantities , 1985 , pp. 391 - 396
Copyright
Copyright © Reidel 1985 

References

Bibliographie

Baize, P., Romani, L. 1946, Ann. d'Astrophys. t 9, n° 1–2.Google Scholar
Blaauw, A. 1963, Basic Astronomical Data, ed. Strand, K. Aa. (U. of Chicago, Chicago), p. 383.Google Scholar
Blanco, V.M., Demers, S., Douglass, G.G., Fitzgerald, M.P. 1970, Photometric Catalogue, Publ. U.S.N.O. Sec. Ser. XXI.Google Scholar
Eggen, O.J., 1967, Ann. Rev. Astron. Astrophys., 5, 105.CrossRefGoogle Scholar
Finsen, W.S., Worley, C.E. 1970, Third Catalogue of Orbits of Visual Binary Stars , R.O.J.C., 7, no 129.Google Scholar
Harris, D.L. III 1963, Basic Astronomical Data, ed. Strand, K. Aa. (U. of Chicago, Chicago), p. 269.Google Scholar
Johnson, H.L. 1963, Basic Astronomical Data, ed. Strand, K. Aa. (U. of Chicago, Chicago), p. 205.Google Scholar
Morel, P.J., Baglin, A. 1983, Cptes Rendus Journées de Strasbourg, 5ème réunion.Google Scholar
Russell, H.N., Moore, C.E. 1938, Astrophys. J., 87, 389.Google Scholar
VandenBerg, D.A., Bridges, T.J. 1984, Astrophys. J., 278, 679.CrossRefGoogle Scholar