J/ApJ/918/50 Reverberation mapping for Mrk 817 and NGC 7469 (Lu+, 2021)
Reverberation mapping measurements of black hole masses and broad-line region
kinematics in Mrk 817 and NGC 7469.
Lu K.-X., Wang J.-G., Zhang Z.-X., Huang Y.-K., Xu L., Xin Y.-X., Yu X.-G.,
Ding Xu, Wang D.-Q., Feng H.-C.
<Astrophys. J., 918, 50 (2021)>
=2021ApJ...918...50L 2021ApJ...918...50L
ADC_Keywords: Active gal. nuclei; Galaxies, Seyfert; Spectra, optical
Keywords: Seyfert galaxies ; Supermassive black holes ;
Reverberation mapping ; Time domain astronomy
Abstract:
We present the results from a spectroscopic monitoring campaign to
obtain reverberation mapping measurements and investigate the
broad-line region (BLR) kinematics for active galactic nuclei (AGNs)
of Mrk 817 and NGC 7469. This campaign was undertaken with the Lijiang
2.4m telescope. The median spectroscopic sampling is 2.0d for Mrk817
and 1.0d for NGC 7469. We detect time lags of the broad emission
lines, including Hβ, Hγ, HeII, and HeI for both AGNs,
including FeII for Mrk 817 with respect to the varying AGN continuum
at 5100Å. Investigating the relationship between line widths and
time lags of the broad emission lines, we find that the BLR dynamics
of Mrk 817 and NGC 7469 are consistent with the virial prediction. We
estimate the masses of central supermassive black holes (SMBHs) and
the accretion rates of both AGNs. Using the data of this campaign, we
construct the velocity-resolved lag profiles of the broad Hγ,
Hβ, and HeI lines for Mrk 817, which show almost the same
kinematic signatures in that the time lags in the red wing are
slightly larger than the time lags in the blue wing. For NGC 7469, we
only clearly construct the velocity-resolved lag profiles of the broad
Hγ and Hβ, which show very similar kinematic signatures to
the BLR of Mrk 817. These signatures indicate that the BLR of
Keplerian motion in both AGNs seemingly has outflowing components
during the monitoring period. We discuss the kinematics of the BLR and
the measurements, including SMBH mass and accretion rates.
Description:
The spectroscopic observation of Mrk 817 and NGC 7469 were taken using
Yunnan Faint Object Spectrograph and Camera mounted on the Lijiang
2.4m telescope, which is located in Lijiang and is administered by
Yunnan Observatories, Chinese Academy of Sciences.
The spectra of Mrk 817 (wavelength range 3600-7460Å) were monitored
from 2018 December 20 to 2019 May 29, NGC 7469 (range 3400-9100Å)
were monitored from 2019 October 12 to December 31.
Objects:
----------------------------------------------------------
RA (ICRS) DE Designation(s)
----------------------------------------------------------
14 36 22.08 +58 47 39.3 Mrk 817 = QSO J1436+5847
23 03 15.67 +08 52 25.2 NGC 7469 = Mrk 1514
----------------------------------------------------------
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 83 70 Light curves of AGN continuum at 5100 Angstroms
and broad emission lines for Mrk 817
table2.dat 71 52 Light curves of AGN continuum at 5100 Angstroms
and broad emission lines for NGC 7469
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See also:
J/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)
J/ApJ/687/78 : FeII emission in quasars (Hu+, 2008)
J/ApJ/716/993 : LAMP: reverberation mapping of H and He lines (Bentz+, 2010)
J/ApJ/732/121 : V-band and Hβ monitoring of Z299-15 (Barth+, 2011)
J/ApJ/736/86 : FeII emission in SDSS type 1 AGNs (Dong+, 2011)
J/ApJ/782/45 : SEAMBHs. I. Mrk 142, Mrk 335, and IRAS F12397+3333 (Du+, 2014)
J/ApJ/795/149 : Reverberation mapping of NGC 7469 (Peterson+, 2014)
J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)
J/ApJ/806/22 : SEAMBHs IV. Hβ time lags (Du+, 2015)
J/ApJ/827/118 : A new reverberation mapping campaign on NGC 5548 (Lu+, 2016)
J/ApJ/840/97 : Opt. RM campaign of five AGNs (Fausnaugh+, 2017)
J/ApJ/851/21 : SDSS RM project first year of observations (Grier+, 2017)
J/ApJ/866/133 : Continuum-Hβ light curves of 5 Seyfert 1 (De Rosa+, 2018)
J/ApJ/856/6 : SEAMBHs IX. 10 new Hβ light curves (Du+, 2018)
J/A+A/615/A72 : NGC 7469 X-ray spectra (Mehdipour+, 2018)
J/ApJ/886/42 : Reverberation mapping & opt. spectra data of AGNs (Du+, 2019)
J/ApJ/876/102 : Reverberation mapping of the Seyfert Zw I 1 (Huang+, 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/905/77 : Monitoring AGNs with Hβ Asymmetry. II. (Brotherton+, 2020)
J/ApJ/909/18 : Reverberation mapping monitoring of NGC3516 (Feng+, 2021)
J/ApJS/253/20 : SEAMBHs XII. Reberberation mapping for 15 PG QSOs (Hu+, 2021)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 F11.3 d JD [2458473.4/2458663.3] Julian Date
13- 17 F5.3 10-17W/m2/nm F5100 [3/4.4] AGN continuum flux at 5100Å (1)
19- 23 F5.3 10-17W/m2/nm e_F5100 [0.05/0.2] Uncertainty in F5100
25- 29 F5.3 10-13mW/m2 FHb [4.46/5.7] Hβ4861Å emission line
flux (2)
31- 35 F5.3 10-13mW/m2 e_FHb [0.08/0.09] Uncertainty in FHb
37- 41 F5.3 10-13mW/m2 FHg [1.53/2.3] Hγ4340Å emission
line flux (2)
43- 47 F5.3 10-13mW/m2 e_FHg [0.03/0.06] Uncertainty in FHg
49- 53 F5.3 10-14mW/m2 FHeII [0.07/8.4] HeII 4686Å emission line
flux (2)
55- 59 F5.3 10-14mW/m2 e_FHeII [0.1/0.4] Uncertainty in FHeII
61- 65 F5.3 10-13mW/m2 FHeI [1.6/2.15] HeI 5876Å emission line
flux (2)
67- 71 F5.3 10-13mW/m2 e_FHeI [0.031/0.04] Uncertainty in FHeI
73- 77 F5.3 10-13mW/m2 FFe [3.23/4.8] Iron emission line flux (2)
79- 83 F5.3 10-13mW/m2 e_FFe [0.068/0.08] Uncertainty in FFe
--------------------------------------------------------------------------------
Note (1): In units of 10-15erg/s/cm2/Å.
Note (2): In units of 10-13erg/s/cm2 except for
HeII which is 10-14erg/s/cm2.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 F11.3 d JD [2458769/2458849] Julian Date
13- 17 F5.3 10-16W/m2/nm F5100 [1/1.6] AGN continuum flux at 5100Å (1)
19- 23 F5.3 10-16W/m2/nm e_F5100 [0.02/0.04] Uncertainty in F5100
25- 29 F5.3 10-13mW/m2 FHb [7.93/9.2] Hβ4861Å emission line
flux (2)
31- 35 F5.3 10-13mW/m2 e_FHb [0.06/0.08] Uncertainty in FHb
37- 41 F5.3 10-13mW/m2 FHg [4.48/5.53] Hγ4340Å emission
line flux (2)
43- 47 F5.3 10-13mW/m2 e_FHg [0.07/0.11] Uncertainty in FHg
49- 53 F5.3 10-13mW/m2 FHeII [1.28/3.7] HeII 4686Å emission line
flux (2)
55- 59 F5.3 10-13mW/m2 e_FHeII [0.057/0.08] Uncertainty in FHeII
61- 65 F5.3 10-13mW/m2 FHeI [1.9/2.5] HeI 5876Å emission line
flux (2)
67- 71 F5.3 10-13mW/m2 e_FHeI [0.02/0.04] Uncertainty in FHeI
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Note (1): In units of 10-14erg/s/cm2/Å.
Note (2): In units of 10-13erg/s/cm2.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 13-Jan-2023