Author Info

Vivian U, University of California, Irvine
Aaron J. Barth, University of California, Irvine
H. Alexander Vogler, University of California, Irvine
Hengxiao Guo, University of California, Irvine
Tommaso Treu, University of California, Los Angeles
Vardha N. Bennert, California Polytechnic State University, San Luis ObispoFollow
Gabriela Canalizo, University of California, Riverside
Alexei V. Filippenko, University of California - Berkeley
Elinor Gates, Lick Observatory
Frederick Hamann, University of California, Riverside
Michael D. Joner, Brigham Young University
Matthew A. Malkan, University of California, Los Angeles
Anna Pancoast, Harvard-Smithsonian Center for Astrophysics
Peter R. Williams, University of California, Los Angeles
Jong-Hak Woo, Seoul National University
Bela Abolfathi, University of California, Irvine
L. E. Abramson, Carnegie Observatories
Stephen F. Armen, San Diego State University
Hyun-Jin Bae, Seoul National University
Thomas Bohn, University of California, Riverside
Benjamin D. Boizelle, University of California, Irvine
Azalee Bostroem, University of California - Berkeley
Andrew Brandel, University of California, Irvine
Thomas G. Brink, University of California - Berkeley
Sanyum Channa, University of California - Berkeley
M. C. Cooper, University of California, Irvine
Maren Cosens, California Polytechnic State University, San Luis Obispo
Edward Donohue, California Polytechnic State University, San Luis Obispo
Sean P. Fillingham, University of California, Irvine
Diego González-Buitrago, University of California, Irvine
Goni Halevi, University of California - Berkeley
Andrew Halle, University of California - Berkeley
Carole E. Hood, California State University, San Bernardino
Keith Horne, University of St Andrews
J. Chuck Horst, San Diego State University
Maxime de Kouchkovsky, University of California - Berkeley
Benjamin Kuhn, San Diego State University
Sahana Kumar, University of California - Berkeley
Douglas C. Leonard, San Diego State University
Donald Loveland, California Polytechnic State University, San Luis Obispo
Christina Manzano-King, University of California, Riverside
Ian McHardy, University of Southampton
Raúl Michel, Universidad Nacional Autónoma de México
Melanie Kae B. Olaes, San Diego State University
Daeseong Park, Kyungpook National University
Songyoun Park, Seoul National University
Liuyi Pei, University of California, Irvine
Timothy W. Ross, University of California - Berkeley
Jordan N. Runco, University of California, Los Angeles
Jenna Samuel, University of California, Davis
Javier Sánchez, University of California, Irvine
Bryan Scott, University of California, Riverside
Remington O. Sexton, University of California, Riverside
Jaejin Shin, Seoul National University
Isaac Shivvers, University of California - Berkeley
Chance L. Spencer, California Polytechnic State University, San Luis Obispo
Benjamin E. Stahl, University of California - Berkeley
Samantha Stegman, University of California - Berkeley
Isak Stomberg, California Polytechnic State University, San Luis Obispo
Stefano Valenti, University of California, Davis
L. Villafaña, University of California, Los Angeles
Jonelle L. Walsh, Texas A&M University
Heechan Yuk, University of California - Berkeley
WeiKang Zheng, University of California - Berkeley


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 λLλ(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.



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