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U, Vivian; Barth, Aaron J.; Vogler, H. Alexander; Guo, Hengxiao; Treu, Tommaso; Bennert, Vardha N.; Canalizo, Gabriela; Filippenko, Alexei V.; Gates, Elinor; Hamann, Frederick; Joner, Michael D.; Malkan, Matthew A.; Pancoast, Anna; Williams, Peter R.; 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.; González-Buitrago, Diego; Halevi, Goni; Halle, Andrew; Hood, Carol E.; Horne, Keith; Horst, J. Chuck; Kouchkovsky, Maxime de; Kuhn, Benjamin; Kumar, Sahana; Leonard, Douglas C.; Loveland, Donald; Manzano-King, Christina; McHardy, Ian; Michel, Raúl; Olaes, Melanie Kae B.; Park, Daeseong; Park, Songyoun; Pei, Liuyi; Ross, Timothy W.; Runco, Jordan N.; Samuel, Jenna; Sánchez, Javier; Scott, Bryan; Sexton, Remington O.; Shin, Jaejin; Shivvers, Isaac; Spencer, Chance L.; Stahl, Benjamin E.; Stegman, Samantha; Stomberg, Isak; Valenti, Stefano; Villafaña, L.; Walsh, Jonelle L.; Yuk, Heechan; Zheng, WeiKang
The Astrophysical journal, 01/2022, Letnik: 925, Številka: 1Journal Article
Abstract 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) ≈ 10 44 erg s −1 and predicted H β lags of ∼20–30 days or black hole masses of 10 7 –10 8.5 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 H β emission-line light curves, integrated H β lag times (8–30 days) measured against V -band continuum light curves, velocity-resolved reverberation lags, line widths of the broad H β components, and virial black hole mass estimates (10 7.1 –10 8.1 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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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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