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Table · dataset · 2023

LAMP 2016: velocity-resolved Hb lags in Seyfert gal.

Listed in IVOA Registry (Virtual Observatory)

We carried out spectroscopic monitoring of 21 low-redshift Seyfert 1 galaxies using the Kast double spectrograph on the 3m Shane telescope at Lick Observatory from 2016 April to 2017 May.

Description

Targeting active galactic nuclei (AGNs) with luminosities of {lambda}L_{lambda}_(5100{AA})~10^44^erg/s and predicted H{beta} lags of ~20-30d or black hole masses of 10^7^-10^8.5^M_{sun}_, 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 H{beta} emission-line light curves, integrated H{beta} lag times (8-30d) measured against V-band continuum light curves, velocity-resolved reverberation lags, line widths of the broad H{beta} components, and virial black hole mass estimates (10^7.1^-10^8.1^M_{sun}_). 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.

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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.

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