Browsing Exact and Earth Sciences by Subject "Galáxia NGC 3227"

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    • Spectroscopy monitoring of active galactic nuclei from CTIO. I. NGC 3227 

      Winge, Claudia; Peterson, Bradley M.; Horne, Keith; Pogge, Richard William; Pastoriza, Miriani Griselda; Storchi-Bergmann, Thaisa (1995) [Journal article]
      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 ...