Reverberation mapping measurements of black hole masses in six local Seyfert galaxies

K. D. Denney, B. M. Peterson, R. W. Pogge, A. Adair, D. W. Atlee, K. Au-Yong, M. C. Bentz, J. C. Bird, D. J. Brokofsky, E. Chisholm, M. L. Comins, M. Dietrich, V. T. Doroshenko, J. D. Eastman, Y. S. Efimov, S. Ewald, S. Ferbey, C. M. Gaskell, C. H. Hedrick, K. JacksonS. A. Klimanov, E. S. Klimek, A. K. Kruse, A. Ladéroute, J. B. Lamb, K. Leighly, T. Minezaki, S. V. Nazarov, C. A. Onken, E. A. Petersen, P. Peterson, S. Poindexter, Y. Sakata, K. J. Schlesinger, S. G. Sergeev, N. Skolski, L. Stieglitz, J. J. Tobin, C. Unterborn, M. Vestergaard, A. E. Watkins, L. C. Watson, Y. Yoshii

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    301 Citations (Scopus)

    Abstract

    We present the final results from a high sampling rate, multi-month, spectrophotometric reverberation mapping campaign undertaken to obtain either new or improved Hβ 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 Hβ 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 theseAGNs.We place our results in context to the most current calibration of the broad-line region (BLR) RBLR-L relationship, where our results remove outliers and reduce the scatter at the low-luminosity end of this relationship.We also present velocity-resolvedHβ time-delay measurements for our complete sample, though the clearest velocity-resolved kinematic signatures have already been published.

    Original languageEnglish
    Pages (from-to)715-737
    Number of pages23
    JournalAstrophysical Journal
    Volume721
    Issue number1
    DOIs
    Publication statusPublished - 20 Sept 2010

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