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