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The Lick AGN Monitoring Project 2016 : velocity-resolved Hβ lags in luminous Seyfert galaxies

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Date
25/01/2022
Author
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
de Kouchkovsky, Maxime
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
Funder
Science & Technology Facilities Council
Grant ID
ST/R00824/1
Keywords
Seyfert galaxies
Supermassive black holes
Active galactic nuclei
Reverbration mapping
QB Astronomy
QC Physics
3rd-DAS
MCC
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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 April 2016 to May 2017. Targetingactive galactic nuclei (AGN) 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 dataset will elucidate the detailed kinematics and provide robust dynamical black hole masses for several objects in this sample.
Citation
U , V , Barth , A J , Vogler , H A , Guo , H , Treu , T , Bennert , V N , Canalizo , G , Filippenko , A V , Gates , E , Hamann , F , Joner , M D , Malkan , M A , Pancoast , A , Williams , P R , Woo , J-H , Abolfathi , B , Abramson , L E , Armen , S F , Bae , H-J , Bohn , T , Boizelle , B D , Bostroem , A , Brandel , A , Brink , T G , Channa , S , Cooper , M C , Cosens , M , Donohue , E , Fillingham , S P , González-Buitrago , D , Halevi , G , Halle , A , Hood , C E , Horne , K , Horst , J C , de Kouchkovsky , M , Kuhn , B , Kumar , S , Leonard , D C , Loveland , D , Manzano-King , C , McHardy , I , Michel , R , Olaes , M K B , Park , D , Park , S , Pei , L , Ross , T W , Runco , J N , Samuel , J , Sánchez , J , Scott , B , Sexton , R O , Shin , J , Shivvers , I , Spencer , C L , Stahl , B E , Stegman , S , Stomberg , I , Valenti , S , Villafaña , L , Walsh , J L , Yuk , H & Zheng , W 2022 , ' The Lick AGN Monitoring Project 2016 : velocity-resolved Hβ lags in luminous Seyfert galaxies ' , Astrophysical Journal , vol. 925 , no. 1 , 52 . https://doi.org/10.3847/1538-4357/ac3d26
Publication
Astrophysical Journal
Status
Peer reviewed
DOI
https://doi.org/10.3847/1538-4357/ac3d26
ISSN
0004-637X
Type
Journal article
Rights
Copyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Description
Funding: K.H. acknowledges support from STFC grant ST/R000824/1.
Collections
  • University of St Andrews Research
URL
https://arxiv.org/abs/2111.14849
URI
http://hdl.handle.net/10023/24757

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