Browsing FAS Scholarly Articles by Keyword "Galaxies: individual (Markarian 509)"

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    • Optical Continuum and Emission‐Line Variability of the Seyfert 1 Galaxy Markarian 509 

      Carone, T. E.; Peterson, B. M.; Bechtold, J.; Bertram, R.; Bischoff, K.; Dietrich, M.; Filppenko, A. V.; Ho, L. C.; Huchra, J; Kollatchny, W.; Korista, K. T.; Matheson, T.; Pogge, R. W.; Shields, J. C.; Smith, P. S.; Wagner, R. M.; Wilkes, Belinda Jane (IOP Publishing, 1996)
      We report on the results of a 5 year coordinated program of spectroscopic monitoring of the luminous Seyfert 1 galaxy Markarian 509. The Hβ and He II λ4686 emission lines are found to respond to continuum variations with ...