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Etoiles Multiples Et Amas Ouverts

Published online by Cambridge University Press:  12 April 2016

J. Dommanget*
Affiliation:
Observatoire Royal de Belgique

Abstract

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It is generally suspected that multiple systems and galactic clusters are objects of different kinds. Their frequency distribution as a function of the number of components, n, as well as their sizes and their masses, show important differences between both categories and also the probable existence of a limit lying between n = 10 and n = 20 components. The basic difference between these objects seems to be that the multiple systems finally appear to be components of the stellar medium in th same way as single and double stars, whereas the galactic clusters are groups of components of a particularly dense part of this medium.

Resumen

Resumen

Generalmente se tiene la sospecha que estrellas multiples y cúmulos galácticos son objetos de diferente clase. Sus distribuciones de frecuencia como función del número de componentes, n, así como su tamaño y masa, muestran diferencias importantes entre las dos categorías, y también la existencia probable de un límite que queda entre n=10 y n = 20 componentes. La diferencia básica entre estos objetos aparentemente es, que los sistemas múltiples parecen ser finalmente componentes del medio estelar de la misma manera que estrellas solas y dobles, mientras que los cúmulos galácticos son grupos de compon nentes de una región particularmente densa de este medio.

Type
Session 3
Copyright
Copyright © Otto G. Franz and Paris Pismis 1977

References

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