Reverberation Mapping Measurements of Black Hole Masses in Six Local Seyfert Galaxies

We present the final results from a high sampling rate, multi-month, spectrophotometric reverberation mapping campaign undertaken to obtain either new or improved H{beta} reverberation lag measurements for several relatively low-luminosity active galactic nuclei (AGNs). We have reliably measured the...

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Bibliographic Details
Published in:The Astrophysical journal 2010-09, Vol.721 (1), p.715-737
Main Authors: Denney, K. D, Peterson, B. M, Pogge, R. W, Adair, A, Atlee, D. W, Au-Yong, K, Bentz, M. C, Bird, J. C, Brokofsky, D. J, Chisholm, E, Comins, M. L, Dietrich, M, Doroshenko, V. T, Eastman, J. D, Efimov, Y. S, Ewald, S, Ferbey, S, Gaskell, C. M, Hedrick, C. H, Jackson, K, Klimanov, S. A, Klimek, E. S, Kruse, A. K, Ladéroute, A, Lamb, J. B, Leighly, K, Minezaki, T, Nazarov, S. V, Onken, C. A, Petersen, E. A, Peterson, P, Poindexter, S, Sakata, Y, Schlesinger, K. J, Sergeev, S. G, Skolski, N, Stieglitz, L, Tobin, J. J, Unterborn, C, Vestergaard, M, Watkins, A. E, Watson, L. C, Yoshii, Y
Format: Article
Language:English
Subjects:
Astronomy
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BLACK HOLES
CALIBRATION
Earth, ocean, space
EMISSION
Exact sciences and technology
GALAXIES
GALAXY NUCLEI
LUMINOSITY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SEYFERT GALAXIES
SPECTROPHOTOMETRY
TIME DELAY
VELOCITY
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Summary:We present the final results from a high sampling rate, multi-month, spectrophotometric reverberation mapping campaign undertaken to obtain either new or improved H{beta} reverberation lag measurements for several relatively low-luminosity active galactic nuclei (AGNs). We have reliably measured the time delay between variations in the continuum and H{beta} emission line in six local Seyfert 1 galaxies. These measurements are used to calculate the mass of the supermassive black hole at the center of each of these AGNs. We place our results in context to the most current calibration of the broad-line region (BLR) R{sub BLR}-L relationship, where our results remove outliers and reduce the scatter at the low-luminosity end of this relationship. We also present velocity-resolved H{beta} time-delay measurements for our complete sample, though the clearest velocity-resolved kinematic signatures have already been published.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/721/1/715