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Magnitude absolue moyenne des RR Lyrae

Published online by Cambridge University Press:  07 February 2017

A. Heck
A. Heck*
Affiliation:
Institut d'Astrophysique de l'Université de Liège, Belgique

Abstract

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By a method based on the principle of maximum likelihood, we obtained for a sample of 102 RR Lyrae stars and σMpg = 0.5 ± 0.2. We could not confirm the results of Clube and Jones (1971). The study of the correlations between , the period, the abundance parameter ΔS and the light variation amplitude showed that on ground of the present data, no significant correlation can be established.

Résumé

Résumé

Par une méthode basée sur le principe du maximum de vraisemblance, nous obtenons, pour un échantillon de 102 RR Lyrae, et σMpg = 0.5 ± 0.2. Les résultats de Clube et Jones (1971) ne sont pas confirmés. L'étude des corrélations entre , la période, l'indice de métallicité ΔS et l'amplitude de variation en magnitude montre que, sur la base des données actuelles, aucune corrélation significative ne peut être établie.

Type
Part I: Absolute Magnitudes from Trigonometric and Statistical Parallaxes
Information
Symposium - International Astronomical Union , Volume 54: Problems of Calibration of Absolute Magnitudes and Temperature of Stars , 1973 , pp. 21 - 22
Copyright
Copyright © Reidel 1973 

References

Bibliographie

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