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2022ApJ...925...52U - Astrophys. J., 925, 52-52 (2022/January-3)

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

U V., BARTH A.J., VOGLER H.A., GUO H., TREU T., BENNERT V.N., CANALIZO G., FILIPPENKO A.V., GATES E., HAMANN F., JONER M.D., MALKAN M.A., PANCOAST A., WILLIAMS P.R., WOO J.-H., ABOLFATHI B., ABRAMSON L.E., ARMEN S.F., BAE H.-J., BOHN T., BOIZELLE B.D., BOSTROEM 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., SAMUEL J., SANCHEZ J., SCOTT B., SEXTON R.O., SHIN J., SHIVVERS I., SPENCER C.L., STAHL B.E., STEGMAN S., STOMBERG I., VALENTI S., VILLAFANA L., WALSH J.L., YUK H. and ZHENG W.

Abstract (from CDS):

We carried out spectroscopic monitoring of 21 low-redshift Seyfert 1 galaxies using the Kast double spectrograph on the 3 m Shane telescope at Lick Observatory from 2016 April to 2017 May. Targeting active galactic nuclei (AGNs) with luminosities of λ L _ λ _(5100 Å) ≃ 1044 erg s–1 and predicted Hβ lags of ∼20-30 days or black hole masses of 107-108.5 M ☉, our campaign probes luminosity-dependent trends in broad-line region (BLR) structure and dynamics as well as to improve calibrations for single-epoch estimates of quasar black hole masses. Here we present the first results from the campaign, including Hβ emission-line light curves, integrated Hβ lag times (8-30 days) measured against V-band continuum light curves, velocity-resolved reverberation lags, line widths of the broad Hβ components, and virial black hole mass estimates (107.1-108.1 M ☉). Our results add significantly to the number of existing velocity-resolved lag measurements and reveal a diversity of BLR gas kinematics at moderately high AGN luminosities. AGN continuum luminosity appears not to be correlated with the type of kinematics that its BLR gas may exhibit. Follow-up direct modeling of this data set will elucidate the detailed kinematics and provide robust dynamical black hole masses for several objects in this sample.

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

Journal keyword(s): Seyfert galaxies - Supermassive black holes - Active galactic nuclei - Reverberation mapping

VizieR on-line data: <Available at CDS (J/ApJ/925/52): table1.dat table4.dat table6.dat table8.dat>

Simbad objects: 29

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