J/ApJ/925/52 LAMP 2016: velocity-resolved Hb lags in Seyfert gal. (U+, 2022)
The Lick AGN Monitoring Project 2016: velocity-resolved Hβ lags in
luminous Seyfert galaxies.
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., Gonzalez-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., Sanchez J.,
Scott B., Sexton R.O., Shin J., Shivvers I., Spencer C.L., Stahl B.E.,
Stegman S., Stomberg I., Valenti S., Villafana L., Walsh J.L., Yuk H.,
Zheng W.
<Astrophys. J., 925, 52 (2022)>
=2022ApJ...925...52U 2022ApJ...925...52U
ADC_Keywords: Active gal. nuclei; Galaxies, Seyfert; Spectra, optical;
Photometry; Redshifts
Keywords: Seyfert galaxies ; Supermassive black holes ; Active galactic nuclei ;
Reverberation mapping
Abstract:
We carried out spectroscopic monitoring of 21 low-redshift Seyfert 1
galaxies using the Kast double spectrograph on the 3m Shane telescope
at Lick Observatory from 2016 April to 2017 May. Targeting active
galactic nuclei (AGNs) with luminosities of
λLλ(5100Å)∼1044erg/s and predicted Hβ lags
of ∼20-30d or black hole masses of 107-108.5M☉, 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 (8-30d) measured against
V-band continuum light curves, velocity-resolved reverberation lags,
line widths of the broad Hβ components, and virial black hole
mass estimates (107.1-108.1M☉). 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.
Description:
We conducted a spectroscopic monitoring program of 1yr duration at
Lick Observatory on Mount Hamilton, California. This project was
allocated 100 nights at the Lick 3m Shane telescope across three
observing semesters between 2016 April 28 and 2017 May 6 (UT).
Spectroscopic data were taken using the Kast Double Spectrograph.
See Section 3.
AGN continuum light curves were measured from imaging data. From
2016 February to 2017 May, our team used a network of eight telescopes
across the world and obtained high-fidelity V-band images with up to
nightly cadence within each object's monitoring season. Our
photometric campaign included observations with the following
telescopes: the 0.76m Katzman Automatic Imaging Telescope (KAIT) and
the Anna Nickel telescope at Lick Observatory on Mount Hamilton,
California; the Las Cumbres Observatories Global Telescope (LCOGT)
network; the 2m Liverpool Telescope at the Observatorio del Roque de
Los Muchachos on the Canary island of La Palma, Spain; the 1m Illinois
Telescope at Mount Laguna Observatory (MLO) in the Laguna Mountains,
California; the San Pedro Martir Observatory (SPM) 1.5m Johnson
telescope at the Observatory Astronomico Nacional located in Baja
California, Mexico; the Fred Lawrence Whipple Observatory 1.2m
telescope on Mount Hopkins, Arizona; and the 0.9m West Mountain
Observatory (WMO) telescope at Utah Lake in Utah. KAIT, LCOGT,
SPM-1.5m, and Liverpool are fully robotic telescopes.
See Section 4.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 85 21 Sample properties
table4.dat 52 5033 V-band light curve data
table6.dat 40 779 Hβ light curve data (Section 5)
table8.dat 46 115 Velocity-resolved lags (Section 5.3)
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See also:
J/ApJS/145/199 : Opt. spectroscopic atlas of low-redshift AGN (Marziani+, 2003)
J/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)
J/A+A/417/515 : I Zw 1 unusual emission line spectrum (Veron-Cetty+, 2004)
J/ApJ/680/169 : SDSS DR5 virial black hole masses (Shen+, 2008)
J/ApJ/696/870 : Catalina Real-time Transient Survey (CRTS) (Drake+, 2009)
J/ApJ/698/895 : Variations in QSOs optical flux (Kelly+, 2009)
J/ApJ/716/993 : LAMP: reverberation mapping of H and He lines (Bentz+, 2010)
J/ApJS/189/15 : FeII emission in a sample of AGN spectra (Kovacevic+, 2010)
J/ApJS/194/45 : QSO properties from SDSS-DR7 (Shen+, 2011)
J/ApJ/755/60 : Reverberation mapping for 5 Seyfert 1 galaxies (Grier+, 2012)
J/ApJ/753/125 : NIR spectroscopy follow-up of 60 SDSS-DR7 QSOs (Shen+, 2012)
J/ApJ/782/45 : SEAMBHs. I. Mrk 142, Mrk 335, and IRAS F12397+3333 (Du+, 2014)
J/ApJ/795/38 : Phot./spectroscopic measurements for KA1858+4850 (Pei+, 2014)
J/ApJ/793/108 : SEAMBHs. II. Continuum and Hbeta LCs (Wang+, 2014)
J/ApJS/217/26 : Lick AGN monitoring 2011: light curves (Barth+, 2015)
J/ApJ/809/20 : MBH-σ relation for active galaxies (Bennert+, 2015)
J/ApJ/806/22 : SEAMBHs IV. Hβ time lags (Du+, 2015)
J/ApJS/216/4 : SDSS-RM project: technical overview (Shen+, 2015)
J/ApJ/804/L15 : SDSS-DR7 broad-line QSOs (Sun+, 2015)
J/ApJ/825/126 : SEAMBHs. V. The third year (Du+, 2016)
J/ApJ/818/30 : Lag measurements for 15 z<0.8 QSOs from SDSS-RM (Shen+, 2016)
J/ApJ/851/21 : SDSS RM project first year of observations (Grier+, 2017)
J/ApJ/837/131 : Space telescope RM project. V. NGC5548 monitoring (Pei+, 2017)
J/ApJ/866/133 : Continuum-Hβ light curves of 5 Seyfert 1 (De Rosa+, 2018)
J/ApJ/869/142 : Monitoring AGNs with Hβ Asymmetry (MAHA). I. (Du+, 2018)
J/ApJ/856/6 : SEAMBHs IX. 10 new Hβ light curves (Du+, 2018)
J/ApJ/886/42 : Reverberation mapping & opt. spectra data of AGNs (Du+, 2019)
J/ApJ/887/38 : SDSS RM Project: CIV lags & LCs; 4yrs of data (Grier+, 2019)
J/ApJ/887/135 : V-band, 5100Å and broad emission LCs of Mrk 79 (Lu+, 2019)
J/ApJ/876/49 : A 10yr reverberation mapping campaign for 3C273 (Zhang+, 2019)
J/ApJ/876/102 : Reverberation mapping of the Seyfert Zw I 1 (Huang+, 2019)
J/ApJ/903/112 : SDSS Hb & CIV reverberation mapped AGNs (Dalla Bonta+, 2020)
J/ApJ/903/86 : Properties of 68 AGNs (Martinez-Aldama+, 2020)
J/ApJ/920/9 : YFOSC light curves of PG 0923+201 and PG 1001+291 (Li+, 2021)
J/ApJ/918/50 : Reverberation mapping for Mrk 817 and NGC 7469 (Lu+, 2021)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Name Galaxy name
16- 47 A32 --- OName Other name(s)
49- 50 I2 h RAh Hour of right ascension (J2000)
52- 53 I2 min RAm Minute of right ascension (J2000)
55- 60 F6.3 s RAs Second of right ascension (J2000)
62 A1 --- DE- Sign of declination (J2000)
63- 64 I2 deg DEd Degree of declination (J2000)
66- 67 I2 arcmin DEm Arcminute of declination (J2000)
69- 73 F5.2 arcsec DEs Arcsecond of declination (J2000)
75- 81 F7.5 --- z [0.029/0.08] Redshift from NED
83- 85 A3 --- Ref Reference (1)
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Note (1): Reference for λLλ (5100Å) used to estimate the
Hβ lag in our sample as follows:
1 = Previous Lick spectra
2 = Marziani et al. (2003, J/ApJS/145/199)
3 = Joshi et al. (2012MNRAS.419.3433J 2012MNRAS.419.3433J)
4 = Barth et al. (2015, J/ApJS/217/26)
5 = Winter et al. (2010ApJ...710..503W 2010ApJ...710..503W)
6 = Peterson et al. (2004, J/ApJ/613/682)
7 = Zu et al. (2011ApJ...735...80Z 2011ApJ...735...80Z)
8 = Bennert et al. (2015, J/ApJ/809/20)
9 = Sun & Shen (2015, J/ApJ/804/L15)
10 = Bachev et al. (2008A&A...488..887B 2008A&A...488..887B)
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Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Name Galaxy name
16- 24 F9.4 d HJD [7425.8/7894.92] Heliocentric Julian Date;
HJD-2450000
26- 31 F6.3 10-17W/m2/nm Flux [0.44/11.66] V band flux density (1)
33- 37 F5.3 10-17W/m2/nm e_Flux [0.001/0.2] Uncertainty in Flux (1)
39- 52 A14 --- Tel Telescope used (2)
--------------------------------------------------------------------------------
Note (1): In units of 10-15erg/s/cm2/Angstrom.
Note (2): Telescope used as follows:
LCOGT-McDonald = the Las Cumbres Observatories Global Telescope network;
McDonald Observatory (975 occurrences)
LCOGT-fl = (1625 occurrences)
LCOGT-kb = (502 occurrences)
Liverpool = the 2m Liverpool Telescope at the Observatorio del Roque
de Los Muchachos on the Canary island of La Palma,
Spain (544 occurrences)
MLO-new = the 1m Illinois Telescope at Mount Laguna Observatory,
California (92 occurrences)
MLO-old = the 1m Illinois Telescope at Mount Laguna Observatory,
California (27 occurrences)
Nickel = the Anna Nickel telescope at Lick Observatory on Mount
Hamilton, California (78 occurrences)
SPM-C0 = the San Pedro Martir Observatory 1.5m Johnson telescope at
the Observatory Astronomico Nacional located in Baja
California, Mexico (21 occurrences)
WMO = the 0.9m West Mountain Observatory telescope at Utah Lake
in Utah (548 occurrences)
Whip = the Fred Lawrence Whipple Observatory (FLWO) 1.2m telescope
on Mount Hopkins, Arizona (418 occurrences)
nKAIT = the 0.76m Katzman Automatic Imaging Telescope
(177 occurrences)
FTN-new = (26 occurrences)
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Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Name Galaxy name
16- 22 F7.2 d HJD [7509.6/7875] Heliocentric Julian Date;
HJD-2450000
24- 29 F6.1 10-18W/m2 Flux [38.8/1410] Hβ line flux (1)
31- 34 F4.2 10-18W/m2 e_Flux [0.14/5.6] Uncertainty in Flux (1)(2)
36- 40 F5.2 10-18W/m2 ModUnc [0.9/93.7] Modified uncertainty in Flux (1)(3)
--------------------------------------------------------------------------------
Note (1): In units of 10-15erg/s/cm2.
Note (2): From the photon-counting errors in the flux measurement.
Note (3): Incorporates the spectral scaling uncertainties from [OIII] scatter.
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Byte-by-byte Description of file: table8.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Name Galaxy name
16- 21 I6 km/s Vel [-10227/11154] Velocity bin
23- 27 I5 km/s e_Vel [286/13223] Uncertainty in Vel
29- 34 F6.2 d tau [-23.3/45.1] Centroid of cross-correlation function
36- 40 F5.2 d E_tau [1.4/37] Upper uncertainty in tau
42- 46 F5.2 d e_tau [1.4/40.2] Lower uncertainty in tau
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 30-Aug-2023