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arXiv · 2203.15000

The Lick AGN Monitoring Project 2016: Dynamical Modeling of Velocity-Resolved H\b{eta} Lags in Luminous Seyfert Galaxies

Lizvette Villafaña·Peter R. Williams·Tommaso Treu·Brendon J. Brewer·Aaron J. Barth·Vivian U·Vardha N. Bennert·H. Alexander Vogler·Hengxiao Guo·Misty C. Bentz·Gabriela Canalizo·Alexei V. Filippenko·Elinor Gates·Frederick Hamann·Michael D. Joner·Matthew A. Malkan·Jong-Hak Woo·Bela Abolfathi·L. E. Abramson·Stephen F. Armen·Hyun-Jin Bae·Thomas Bohn·Benjamin D. Boizelle·Azalee Bostroem·Andrew Brandel·Thomas G. Brink·Sanyum Channa·M. C. Cooper·Maren Cosens·Edward Donohue·Sean P. Fillingham·Diego Gonzalez-Buitrago·Goni Halevi·Andrew Halle·Carol E. Hood·Keith Horne·J. Chuck Horst·Maxime de Kouchkovsky·Benjamin Kuhn·Sahana Kumar·Douglas C. Leonard·Donald Loveland·Christina Manzano-King·Ian McHardy·Raul Michel·Melanie Kae B. Olaes·Daeseong Park·Songyoun Park·Liuyi Pei·Timothy W. Ross·Jordan N. Runco·Jenna Samuel·Javier Sanchez·Bryan Scott·Remington O. Sexton·Jaejin Shin·Isaac Shivvers·Chance L. Spencer·Benjamin E. Stahl·Samantha Stegman·Isak Stomberg·Stefano Valenti·Jonelle L. Walsh·Heechan Yuk·WeiKang Zheng
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Abstract

We have modeled the velocity-resolved reverberation response of the H\b{eta} broad emission line in nine Seyfert 1 galaxies from the Lick Active Galactic Nucleus (AGN) Monitioring 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 H\b{eta} 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 log10(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 H\b{eta} emission line and the Eddington ratio, when using the root-mean-square 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.

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Lizvette Villafaña, Peter R. Williams, Tommaso Treu, Brendon J. Brewer, Aaron J. Barth, Vivian U, Vardha N. Bennert, H. Alexander Vogler, Hengxiao Guo, Misty C. Bentz, Gabriela Canalizo, Alexei V. Filippenko, Elinor Gates, Frederick Hamann, Michael D. Joner, Matthew A. Malkan, Jong-Hak Woo, Bela Abolfathi, L. E. Abramson, Stephen F. Armen, Hyun-Jin Bae, Thomas Bohn, Benjamin D. Boizelle, Azalee Bostroem, Andrew Brandel, Thomas G. Brink, Sanyum Channa, M. C. Cooper, Maren Cosens, Edward Donohue, Sean P. Fillingham, Diego Gonzalez-Buitrago, Goni Halevi, Andrew Halle, Carol E. Hood, Keith Horne, J. Chuck Horst, Maxime de Kouchkovsky, Benjamin Kuhn, Sahana Kumar, Douglas C. Leonard, Donald Loveland, Christina Manzano-King, Ian McHardy, Raul Michel, Melanie Kae B. Olaes, Daeseong Park, Songyoun Park, Liuyi Pei, Timothy W. Ross, Jordan N. Runco, Jenna Samuel, Javier Sanchez, Bryan Scott, Remington O. Sexton, Jaejin Shin, Isaac Shivvers, Chance L. Spencer, Benjamin E. Stahl, Samantha Stegman, Isak Stomberg, Stefano Valenti, Jonelle L. Walsh, Heechan Yuk, WeiKang Zheng. 2022-03-28. The Lick AGN Monitoring Project 2016: Dynamical Modeling of Velocity-Resolved H\b{eta} Lags in Luminous Seyfert Galaxies. https://doi.org/10.3847/1538-4357%2Fac6171

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