Navegação Ciências Exatas e da Terra por Assunto "Galáxia NGC 3227"
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Spectroscopy monitoring of active galactic nuclei from CTIO. I. NGC 3227
(1995) [Artigo de periódico]The results of a five-month monitoring campaign on the Seyfert 1.5 galaxy NGC 3227 are presented. Variability was detected in the continuum and in the broad emission lines. Cross correlations of the 4200 Å continuum light ...