Publication: Optical Continuum and Emission‐Line Variability of the Seyfert 1 Galaxy Markarian 509
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Date
1996
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IOP Publishing
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Citation
Carone, T. E., B. M. Peterson, J. Bechtold, R. Bertram, K. Bischoff, M. Dietrich, A. V. Filppenko, et al. 1996. “Optical Continuum and Emission‐Line Variability of the Seyfert 1 Galaxy Markarian 509.” The Astrophysical Journal 471 (2) (November 10): 737–747. doi:10.1086/178002.
Research Data
Abstract
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 time lags of ~80 and ~60 days, respectively, considerably longer than the emission-line lags measured for other Seyfert galaxies.
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Keywords
Galaxies: active, Galaxies: individual (Markarian 509), Galaxies: Seyfert
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