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Short-Timescale monitoring of the X-ray, UV and broad double-peak emission line of the nucleus of NGC 1097
Jaderson S. Schimoia, Thaisa Storchi-Bergmann, Dirk Grupe +5
Recent studies have suggested that the short-timescale ( days) variability of the broad (10,000 km s) double-peaked H profile of the LINER nucleus of NGC…
On the Scatter in the Radius - Luminosity Relationship for Active Galactic Nuclei
E. Kilerci Eser, M. Vestergaard, B. M. Peterson +2
We investigate and quantify the observed scatter in the empirical relationship between the broad line region size R and the luminosity of the active galactic nucleus (AGN), in orde…
Anatomy of the AGN in NGC 5548: II. The Spatial, Temporal and Physical Nature of the Outflow from HST/COS Observations
N. Arav, C. Chamberlain, G. A. Kriss +30
(Abridged) Our deep multiwavelength campaign on NGC 5548 revealed an unusually strong X-ray obscuration. The resulting dramatic decrease in incident ionizing flux allowed us to con…
Reverberation Mapping of the Seyfert 1 Galaxy NGC 7469
B. M. Peterson, C. J. Grier, Keith Horne +43
A large reverberation mapping study of the Seyfert 1 galaxy NGC 7469 has yielded emission-line lags for Hbeta 4861 and He II 4686 and a central black hole mass measurement of about…
The Black Hole Mass of NGC 4151. II. Stellar Dynamical Measurement from Near-Infrared Integral Field Spectroscopy
Christopher A. Onken, Monica Valluri, Jonathan S. Brown +8
We present a revised measurement of the mass of the central black hole (Mbh) in the Seyfert 1 galaxy NGC 4151. The new stellar dynamical mass measurement is derived by applying an…
AGN Type-casting: Mrk 590 No Longer Fits the Role
K. D. Denney, G. De Rosa, K. Croxall +9
We present multi-wavelength observations that trace more than 40 years in the life of the active galactic nucleus (AGN) in Mrk 590, traditionally known as a classic Seyfert 1 galax…