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 β4686 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.
Original language | English (US) |
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Pages (from-to) | 737-747 |
Number of pages | 11 |
Journal | Astrophysical Journal |
Volume | 471 |
Issue number | 2 PART I |
DOIs | |
State | Published - 1996 |
Keywords
- Galaxies: Seyfert
- Galaxies: active
- Galaxies: individual (Markarian 509)
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science