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2022ApJ...930...52V - Astrophys. J., 930, 52-52 (2022/May-1)

The Lick AGN Monitoring Project 2016: Dynamical Modeling of Velocity-resolved Hβ Lags in Luminous Seyfert Galaxies.

VILLAFANA L., WILLIAMS P.R., TREU T., BREWER B.J., BARTH A.J., U V., BENNERT V.N., VOGLER H.A., GUO H., BENTZ M.C., CANALIZO G., FILIPPENKO A.V., GATES E., HAMANN F., JONER M.D., MALKAN M.A., WOO J.-H., ABOLFATHI B., ABRAMSON L.E., ARMEN S.F., BAE H.-J., BOHN T., BOIZELLE B.D., BOSTROEM K.A., BRANDEL A., BRINK T.G., CHANNA S., COOPER M.C., COSENS M., DONOHUE E., FILLINGHAM S.P., GONZALEZ-BUITRAGO D., HALEVI G., HALLE A., HOOD C.E., HORNE K., HORST J.C., DE KOUCHKOVSKY M., KUHN B., KUMAR S., LEONARD D.C., LOVELAND D., MANZANO-KING C., McHARDY I., MICHEL R., OLAES M.K.B., PARK D., PARK S., PEI L., ROSS T.W., RUNCO J.N., SANCHEZ J., SCOTT B., SEXTON R.O., SHIN J., SHIVVERS I., SPENCER C.L., STAHL B.E., STEGMAN S., STOMBERG I., VALENTI S., WALSH J.L., YUK H. and ZHENG W.

Abstract (from CDS):

We have modeled the velocity-resolved reverberation response of the Hβ broad emission line in nine Seyfert 1 galaxies from the Lick Active Galactic Nucleus (AGN) Monitoring Project 2016 sample, drawing inferences on the geometry and structure of the low-ionization broad-line region (BLR) and the mass of the central supermassive black hole. Overall, we find that the Hβ BLR is generally a thick disk viewed at low to moderate inclination angles. We combine our sample with prior studies and investigate line-profile shape dependence, such as {\mathrm{log}}_{10}(\mathrm{FWHM}/\sigma ), on BLR structure and kinematics and search for any BLR luminosity-dependent trends. We find marginal evidence for an anticorrelation between the profile shape of the broad Hβ emission line and the Eddington ratio, when using the rms spectrum. However, we do not find any luminosity-dependent trends, and conclude that AGNs have diverse BLR structure and kinematics, consistent with the hypothesis of transient AGN/BLR conditions rather than systematic trends.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Active galaxies - Active galactic nuclei - Seyfert galaxies

Simbad objects: 13

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