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Size limits for expanding light sources

Published online by Cambridge University Press:  12 April 2016

James Terrell*
Affiliation:
Los Alamos Scientific Laboratory, Los Alamos, N. M. 87545, U. S. A.

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Les fluctuations rapides des brillances optiques et radio observées dans les quasars, ainsi que dans les objets BL Lac, imposent des limites supérieures sévères sur les dimensions possibles de ces sources; contrairement à l’opinion répandue, ces limites ne sont pas notablement modifiées par l’hypothèse d’une source lumineuse en expansion rapide. Le conflit entre les limites de variation des dimensions des quasars et la surface minimale pouvant émettre une énergie suffisante, en supposant des distances cosmologiques, n’est pas résolu par une expansion relativiste.

Type
Research Article
Copyright
Copyright © Editions du CNRS 1977

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